Hunter  Krajcik

Hunter Krajcik

1674853440

Install and Test the Motion Software on Ubuntu

When setting up a DIY surveillance on your Ubuntu, Motion is one of the reliable apps that you should consider. Besides, setting up a simple surveillance on your Ubuntu is a quick process. All you need is an installed webcam for your Ubuntu and the Motion package. The configuration is simple; we will learn all the steps that you should follow in this guide, from the installation to the configuration of the Motion software.

Installing Motion on Ubuntu

Motion is currently available in the Ubuntu repositories and can be installed with the apt tool. The version that comes with the repository is stable but is not the latest released version.

Here’s how to quickly install Motion on your Ubuntu:

$ sudo apt install motion

Various dependency packages are installed alongside the Motion package.

Once the packages are installed, verify that Motion is installed by checking its version:

$ motion --version

For our case, we have the Motion version 4.3.2 installed. As noted earlier, the Motion version that is installed with this option is not the latest release. To get the latest release, you must access it from the release page for the project on GitHub.

Configuring Motion on Ubuntu

To configure the Motion, you should have the webcam or cameras that you configure with Motion to get the surveillance footage.

The Motion folder is created in the /etc/motion location, containing different configuration files which are required to use Motion. Note that the Motion program is designed to use by the Linux distro and is written in C. You can define how you want the Motion to save the surveillance as a video or image. Furthermore, it runs headless; once you know how to configure it, you can start using it.

The first step is to open the motion.conf file. The configuration file outlines how to link the cameras and has four options of configuration files that you can use. For this case, let’s use the camera4.conf as the configuration file for your webcam or camera.

$ sudo nano /etc/motion/motion.conf

Once you open the configuration file, scroll down and find the section for camera config files. Your task here is to un-comment the configuration file that you want to use and ensure that it has the right path to where we create the configuration file. Remove the semi-colon on the camera4.conf and set the correct path.

Next, use an editor of your choice to create the /etc/motion/camera4.conf file.

$ sudo nano /etc/motion/camera4.conf

Note that Motion comes with examples of how to define the configuration file. For instance, the /etc/motion/camera4-dist.conf outlines how you can link your camera.

Open the camera4.conf file and add the script like in the following image. You should only change the target_dir to align it with your file system and where you want to store the captured images or videos. Motion runs on localhost, which is why we define the streaming port on the last line.

Your /etc/motion/ should have the different files that are shown in the following image. The only new file is the camera4.conf; the others are created during the installation. Suppose you want to link multiple cameras; create a configuration file for each camera.

You can initiate the Motion to start the surveillance with your configuration file ready. Run the following command:

$ sudo /usr/bin/motion

The terminal output will signal that the surveillance has started.

You can now open your browser and access the following URL:

http://localhost:8080/

A window that shows all the cameras you configured for your DIY surveillance will appear, confirming that your setup is working properly. You can click on one of the cameras to expand its view.

That’s how you use Motion to create a simple surveillance system on your Ubuntu.

Conclusion

Motion is a Linux package that supports creating a surveillance system using the connected webcam or cameras. Once you install the Motion package, configure the configuration file for the webcam as discussed in this guide. Then, open your browser to confirm your setup. You now have a personal surveillance system on your Ubuntu.

Original article source at: https://linuxhint.com/

#ubuntu #install #test #software 

Install and Test the Motion Software on Ubuntu
Bongani  Ngema

Bongani Ngema

1673640120

How to Open Source Software Is Transforming Healthcare

Healthcare organizations realize tangible benefits from using open source tools. Explore these examples.

In the summer of 2022, the UK government and NHS England published its Open Source Policy, stating that open source technology is:

Particularly suitable for use within the healthcare industry where, through active collaboration between IT suppliers and user/clinicians communities, solutions can be honed to maximise benefits to delivery of health and social care.

The public statement by NHS England is just the latest development in a broader trend: The wholehearted embrace of open source software by the healthcare sector. And no wonder; open source presents myriad opportunities for this most complex of industries, with potential solutions across various sub-sectors. Yes, open source is now powering everything from medical wearables to healthcare human resource management.

Health informatics

Information technology is playing an increasingly vital role in every sector of the economy, with the healthcare industry no exception. One of the most important developments in this field is the growth of health informatics—in other words, the acquisition and analysis of all types of patient data, including test results, scans, and electronic health records (EHR).

Informatics is all about providing better health outcomes for patients, but essential to this are standardization and interoperability—and this is where open source can make a big difference because of its truly collaborative and "open" nature.

Open source developers have created numerous software solutions for various businesses and organizations within the healthcare sector. First, it is probably worth distinguishing between healthcare software and medical software.

Open source medical software

Medical software refers specifically to medical devices and direct patient care/treatment. It also includes tools for monitoring, analyzing and interpreting data, and a range of other functions. Medical software can be designed for treatment, simulation, or medical training.

Some of the best applications of this are in smartphone apps, allowing patients to track vitals from home. Glucosio is an Android and iOS app enabling people with diabetes to monitor glucose levels while simultaneously supporting diabetes research.

[ Also read Automation: 5 ways it can change lives ]

Imaging and visualization are other fields where open source software provides solutions. One of these is Slicer, a free, open source package written in C++, Python, and Qt. Slicer includes image analysis and scientific visualization tools. Medical professionals use it for various medical applications as diverse as autism, multiple sclerosis, systemic lupus erythematosus, prostate cancer, lung cancer, breast cancer, schizophrenia, orthopedic biomechanics, COPD, cardiovascular disease, and neurosurgery. Studierfenster is another free, open source product. It is an online server-based framework for medical image processing that displays 2D and 3D images in a standard web browser.

Open source healthcare software

Healthcare software is a broader term covering any software developed for the healthcare industry. It encompasses medical solutions, including tools for diagnosis or treatment optimization, but also covers tools that aid with infrastructure services, patient information, public health, and other auxiliary requirements. It is possible here that open source software has the biggest impact on the sector.

Perhaps the most ubiquitous examples of open source software in the healthcare sector are those designed to manage patient records, with applications such as Open Hospital, Open EMR, and Open MRS all helping hospitals and surgeries to hold and manage electronic health records (EHR). Open Dental offers a similar service for dentistry providers and can also be utilized for practice management, including billing and electronic charting.

Hospital Run is another patient record application specifically designed to improve the accessibility of healthcare in developing countries, with an "offline-first" approach to managing healthcare records.

Governments also use open source software for applications in health system management, public health, and biosurveillance. The integrated Human Resource Information System (iHRIS) developed by IntraHealth International helps countries track data about their healthcare workforce and is already being used in over 20 countries worldwide.

Epi Info is statistical software for epidemiology, an open source, public domain tool developed by the USA's Centers for Disease Control and Prevention (CDC). Another tool used to model and visualize the spread of infectious diseases is the Spatiotemporal Epidemiological Modeler, originally developed at IBM Research but freely available through the Eclipse Foundation.

Unique solutions are also being developed for disease management, including collections of applications like Breathing Games—a series of research-backed games under Peer Production licenses created for the prevention, diagnosis, and treatment of chronic respiratory diseases—and Nightscout—a suite of software tools which allow continuous glucose monitoring from the home using cloud technology.

Benefits of open source in healthcare

Open source software has the potential to bring together a host of relevant healthcare stakeholders, including government agencies, medical equipment vendors, healthcare service providers, and research agencies, by facilitating standardization and interoperability in health informatics. But the benefits of open source go beyond this.

Because of the transparency of open source development, there is a large degree of flexibility, with many highly customizable solutions. Furthermore, the open source community has a clearly defined vision with strong motivation from users and developers alike to improve and maintain applications. There is also the potential for open source software to provide increased security due to the reduced reliance on third-party suppliers and the adoption of blockchain technologies—most of which remain open source.

And finally, for a sector struggling with many global crises, the improved cost-benefit ratio of open source software is not an insignificant consideration.

Open source—the answer for a sector under unprecedented pressure?

The healthcare sector is being forced to adapt rapidly due to multiple pressures, and as a result, technological solutions are becoming increasingly important. As open source software becomes more reliable, healthcare organizations realize tangible benefits from its transparency, security, and flexibility. It's clear that open source presents an array of benefits for the industry, aiding not just developed but also developing economies.

Original article source at: https://opensource.com/

#opensource #software 

How to Open Source Software Is Transforming Healthcare
Mahipal Nehra

Mahipal Nehra

1672387741

Creational Design Pattern in Java

In programming, design patterns help solve general, repetitive problems that developers encounter. It is not a code, rather it's a proven and tested paradigm used to prevent subtle issues. Design patterns are classified into three categories, Creational Design Pattern, Behavioural Design Pattern, and Structural Design Pattern, based on the problems they solve. In today’s blog, we will discuss the creational design patterns and understand their subcategories. So, without further ado, let’s begin!

#Java #software-development #webappdevelopment #javadevelopmentcompany  #CustomSoftwareDevelopment 

 

Creational Design Pattern in Java
Anissa  Beier

Anissa Beier

1671874080

Compare Software Development Vs Web Development

In this article, we will learn about Software Development vs Web Development. A significant distinction between web programmers and software programmers relates to the tools they use and the products they want to produce. Software developers are specialists who create software for several computer platforms. They write the code from the ground up. In addition, they assist in developing software systems that power networks and gadgets to ensure their continued functionality. Web developers create integrated websites and applications. Website development may range from raw data files to complex information operations. Frequently, web developers collaborate closely with marketing and business specialists to ensure that their Website is practical, user-friendly, and visually beautiful.

What Is a Web Developer?

A Web developer is a programmer specializing in creating programs for the World Wide Internet or decentralized network applications. The Web Developer is accountable for coding instructions for web-based applications and websites. Web Developers are responsible for developing graphical styles and layouts, integrating visuals and material, optimizing website capacity and speed, and verifying for best results on every desktop, phone, or gadget display.

Key Web Developer Skills and Responsibilities

Skills Required for a Web Developer

  • Systematic approach to work
  • Computer proficiency
  • Communicating well with others
  • Attention to detail
  • Keeping current with industries
  • Capability to clearly describe technical topics
  • Great skills in problem-solving
     

Responsibilities of Web Developer

  • Checking that the Website is accessible so that it displays correctly on all devices.
  • Transferring client Websites to a specific server.
  • Coding and evaluating website code, often Hypertext markup language, XML, or JavaScript.
  • Fixing performance and user issues.
  • Providing multimedia components such as audio, graphics, and video if appropriate.
  • Working collaboratively with designers, programmers, and stakeholders.
  • Connecting with customers to determine what they need from their Website

Job Outlook and Compensation

Jobs of web developers and digital designers are expected to increase by 23 % from 2021 to 2031, slightly more quickly than the average for all professions. A web developer's function and responsibilities start with website design and conclude with its implementation and maintenance. Compensation ranges for developers are usually determined by their expertise and abilities. In India, Web Developer salaries vary from 1.1 Lakhs to 7.0 Lakhs annually, with median earnings being around 3.0 Lakhs. 

What Is a Software Developer?

Software developers develop, create, construct, distribute, and test software utilizing various skills and instruments. Software developers produce computer programs and resolve technical glitches using their imagination, logical reasoning, and problem-solving abilities. They assist in developing software systems that power networks and gadgets to ensure continued functionality. Although software development is profitable, you must possess the required schooling, credentials, practical experience, and abilities to succeed in this field.

Key Software Developer Skills and Responsibilities

Skills Required for Software Developer

  • Communication skills
  • Punctuality
  • Adaptability
  • Project management skills
  • Critical reasoning ability
  • Knowledge of Agile development techniques
  • Attention to detail

Responsibilities of a Software Developer

  • Collaborate with programmers to create methods and flowcharts.
  • Collect and analyze user comments
  • Validate and implement applications and systems
  • Change programs to cure bugs, make them compatible with new technology, enhance performance, or modernize interactions.
  • Work with clients or sectors on technical challenges and develop and upkeep software systems.
  • Lead systems validation and evaluation methods.

Job Outlook and Compensation

The employment future for software developers is favorable, with a projected 22% growth between 2020 and 2030, much higher than the average for all professions. There are many exciting new prospects for software developers, but you must acquire the necessary abilities to reap the benefits of these attractive positions. In addition to studying programming languages like Python and Java, increasing your Intelligence and automated abilities will propel you forward. The average salary of a software developer in India is ₹ 5.04 LPA.

Web Developer VS Software Developer

The work of a web developer is to construct sites. Most web developers are accountable for the speed and capacity of the site, even though their primary responsibility is to guarantee that the site is aesthetically attractive and straightforward to browse. Web development entails the creation of front and back-end programming that controls site functionality. Web developers may focus only on the front code, spine code, or both, and many contemporary professions also demand web design expertise. Software developers are the innovative geniuses behind all types of computer applications. Although some software engineers may specialize in a single application or program, others design vast networks or understand and examine that assist in activating and fueling other applications.

How to Become a Web Developer or Software Developer?

Several web developers have an associate's or bachelor's in website design or computer programming. In contrast, others have taught themself how to code and build websites. A degree might make you a much more competitive applicant, but a solid portfolio can go a considerable way toward demonstrating your talents to employability. So, here are important steps for becoming a web developer:-

  • Improve your web development skills.
  • Pursue a computer programming or website design certification.
  • Take up a website development program.
  • Develop a web development portfolio.
  • Get licensed.

Here are some steps to help you become a Software Developer:

  • Acquire knowledge of programming languages like python, java, c, c++.
  • Figure out your eventual objectives.
  • Pursue a degree or enroll in classes.
  • Start practicing your developer specialization.
  • Create a portfolio of your skills in software development.
  • Enhance your technical abilities.
  • Develop your non-technical abilities.
  • Certify your talents.
  • Apply with assurance.

Differences in Compensation    

In the US., the average yearly compensation for a web developer is approximately $80,000, whereas, in India, the annual average wage is approximately 7,000,000 INR.

In the US., the median annual income for an application developer is approximately $120,000, whereas, in India, the annual compensation is 12,000,000 INR.

Which Is a Better Career Path?

There are pros and downsides to both occupations. The average Software Developer's income is higher, but Web Developers often make more per hour owing to more significant market requirements. In addition to being able to work remotely and as freelancers, web developers have more mobility and are not restricted by geography. The average compensation for a software developer is $120,000 annually, whereas the average salary for a web developer is $80,000 annually. Even though the average wage for a software developer is greater, website programming can generate substantial income.

Conclusion

Software developers and website developers are both significantly crucial in their places. However, developers create multiple softwares or computer platforms, whereas web developers create numerous websites and applications. 

The creation and preservation of websites are referred to as web construction. The labor is done in the background to ensure a website appears excellent, functions quickly, and provides a good user experience. By utilizing a range of programming dialects, web designers, or "app developers," accomplish this.

If you are looking to enhance your software development skills further, we would highly recommend you check Simplilearn’s Post Graduate Program in Full Stack Web Development. This course, in collaboration with Caltech CTME, can help you hone the right web development skills and make you job-ready.

If you have any questions, feel free to post them in the comments section below. Our team of experts will get back to you at the earliest.

Original article sourced at: https://www.simplilearn.com

#software-development #web-development 

Compare Software Development Vs Web Development
QSS Technosoft

QSS Technosoft

1671513878

Why Should We Hire ReactJS Developers For The Year 2023?

ReactJS is an open source JavaScript library developed by Facebook and used for creating user interfaces (UIs) and front-end development. It has gained immense popularity since its initial release in 2013, due to its ability to create fast and interactive web applications. App developers for hire can help businesses to create custom-built apps that are tailored specifically to their requirements. These professionals can design, develop and deploy mobile applications on any platform, as well as provide ongoing maintenance and support. 

ReactJS relies on component-based architecture that allows developers to build UI components rapidly, making it a powerful and efficient tool for building web applications. In this article, we will discuss why businesses should hire ReactJS developers in 2023.

What is ReactJS?

ReactJS is a JavaScript library designed for creating dynamic user interfaces for websites and mobile applications. It uses a component-based architecture which enables developers to create separate components that can be reused or combined to build larger applications. In addition, ReactJS allows developers to write code in a declarative style, making it easier for them to develop and update user interfaces quickly.

What makes ReactJS so powerful?

ReactJS is an efficient solution for web development as it is built on a component-based architecture. This means that developers can create separate components and then reuse them throughout the application. This makes it easier to maintain, modify and update the code when needed. In addition, ReactJS makes it possible for developers to write code in a declarative way, which allows them to focus more on creating user interfaces quickly.

Why should businesses hire ReactJS developers for the year 2023?

Businesses should consider hiring ReactJS developers in 2023 due to its various advantages. 

  • Incredibly efficient and robust architecture

First, ReactJS has an incredibly efficient and robust architecture which allows for seamless scalability with minimal effort from developers. This makes the UI codebase very easy to maintain, which saves businesses time and money.

  • Highly customizable

Furthermore, ReactJS is highly customizable which means developers can implement the exact features that their customers desire. This customization also allows businesses to create unique experiences for each user, which enhances customer satisfaction rates. Additionally, ReactJS has a strong community of developers who are always working on improving the platform so businesses can stay up-to-date with the latest features.

  • Speed and performance

ReactJS is also known for its speed and performance, which makes it a great choice for businesses. The use of virtual DOM enables ReactJS to quickly load data and render components without delay, resulting in an improved user experience. Similarly, ReactJS uses a concept called reconciliation to make updates and changes on the page as quickly as possible. This helps businesses to provide fast, reliable services to their customers.

  • Compatible with various libraries and frameworks

In addition, ReactJS is compatible with various libraries and frameworks, which means developers can easily integrate components from third-party sources into their projects. This reduces development time significantly, allowing businesses to get products to market faster. Finally, ReactJS is relatively easy to learn compared to other frameworks, which makes it a great choice for businesses that need developers with diverse skill sets.

Conclusion

ReactJS is an open source JavaScript library developed by Facebook and used for creating user interfaces (UIs) and front-end development. It has gained immense popularity since its initial release in 2013, due to its ability to create fast and interactive web applications. businesses should consider hiring ReactJS developers in 2023 due to its various advantages such as efficient solutions for web development, component-based architecture that makes it easy to maintain updates and its ability to create dynamic user interfaces quickly. Ultimately, ReactJS is an excellent choice for businesses looking to develop and update their websites and mobile applications in the year 2023.

Why choose QSS Technosoft Inc?

QSS Technosoft has a dedicated team to hire ReactJS developers with in-depth knowledge and expertise in the latest technologies related to web development. We have executed several complex projects successfully, along with providing quality maintenance services to our clients. Our developers are well-versed with the component-based architecture of ReactJS and they can create user interfaces quickly with the help of this powerful library. 

Furthermore, we are committed to providing the best solutions for our clients and ensure that their requirements are fulfilled within the stipulated time frame. Therefore, businesses should consider hiring ReactJS developers from QSS Technosoft in 2023 to get the best quality services at competitive prices.

Thank you for reading!


 #hiredeveloper  #developer  #qsstechnosoft #software  #technology #hirereactjsdevelopers 

Why Should We Hire ReactJS Developers For The Year 2023?
Monty  Boehm

Monty Boehm

1671469020

26 Best Different Healthcare Software Types

Healthcare software is becoming more and more popular as the healthcare industry grows. There are many different types of healthcare software, and each one serves a specific purpose in the healthcare industry.

Medical software programs are used by healthcare professionals to manage patient records and track medical information. These programs can include everything from patient histories to drug interactions. Health software manages healthcare providers’ schedules and contact information and tracks payments and billing information.

Each type of healthcare software has its own unique benefits and drawbacks. It is essential to understand the different types of healthcare software before selecting the right program for your needs. In this article, you will learn about different types of healthcare software.

What is healthcare software, and what are its benefits?

Healthcare software, also known as medical software programs, are computer applications used by healthcare professionals to manage records and track information. 

These healthcare software programs allow healthcare providers to track patient histories and medical records better, reducing the risk of misdiagnoses or incorrect prescriptions being written. It also gives healthcare providers more time to spend with patients than doing administrative work.

Types of healthcare software 

Health tracking

Health tracking software is used to track and monitor a person’s health data. This data can include everything from weight and BMI to blood pressure and cholesterol levels. Healthcare professionals can use health tracking software to help patients manage their health or individuals to track their own health data.

Health tracking software can be valuable for healthcare providers and patients alike. It can help healthcare providers identify potential health problems and make necessary adjustments to the patient’s care plan. For patients, health tracking software can provide a valuable snapshot of their overall health and help them see where they need to make changes in their lifestyle.

There are many different types of health tracking software available, so it is important to find one that meets your specific needs.

E-prescribing app

An e-prescribing app allows healthcare providers to electronically prescribe medication. This is beneficial for healthcare providers because it reduces the chance of incorrectly prescribing medication, leading to incorrect dosages or serious medical problems.

Additionally, healthcare providers can use an e-prescribing app to access patient records, manage insurance information, and communicate with patients electronically. An e-prescribing app can save healthcare professionals valuable time by allowing them to complete administrative tasks without having to leave the office. 

Hospital management software

Hospital management software is used to manage healthcare facilities. This includes tasks such as managing staff, patient scheduling, and cost accounting. Additionally, healthcare facility software can be used to track assets and inventory.

Pharmacy management software

A pharmacy management system is designed specifically for pharmacies or other healthcare facilities that handle pharmaceutical prescriptions. It allows healthcare providers to process prescriptions electronically, reducing medication errors while increasing efficiency. 

Patient portal

A patient portal is an online account created by healthcare providers specifically for patients. Patients can log in to their accounts on the patient portal website using a username and password they create when they sign up for their healthcare provider’s services. A patient portal gives patients more control over their healthcare by viewing healthcare records and requesting appointments.

Patient portals can also be used to allow patients to refill their prescriptions or communicate with healthcare providers electronically. 

Clinical decision support software

Clinical decision support software, often referred to as clinical documentation systems, is designed for healthcare providers to document a patient’s medical history. It not only helps healthcare professionals remember important facts about a patient’s condition and treatment. It also provides information on diseases and conditions that may fit the symptoms being presented by the patient.

In addition, healthcare facilities can use clinical documentation systems for tasks such as credentialing new healthcare providers and managing financial accounts. They can also be used in conjunction with health-tracking software.

Patient management software

Patient management software is used by healthcare facilities to automate administrative tasks related to patient care. It can be used to track medical insurance, manage appointments and billing, collect healthcare payments, accept healthcare documents such as lab results and medical reports, and much more. 

Healthcare management software 

Healthcare facility management software is designed for healthcare managers to use in their daily workflows. This type of healthcare software includes features that allow healthcare managers to handle many different kinds of tasks all from one centralized system, including: 

  • managing staff and scheduling
  • overseeing the budget and expenses
  • identifying potential problems through risk management
  • planning renovations and expansion
  • analyzing energy consumption
  • developing marketing campaigns
  • conducting research on industry trends
  • managing inventory and assets
  • tracking regulatory compliance
  • and more

Overall, healthcare facility management software is designed to increase efficiency and improve healthcare operations by streamlining healthcare managers’ daily tasks. 

Health information exchange (HIE) 

A healthcare information exchange (HIE) is a network that allows healthcare professionals to access patient records and communicate with other healthcare providers electronically to improve the quality of healthcare services. HIE networks can be used in both inpatient healthcare settings and outpatient clinics, and they provide benefits such as: 

  • increasing collaboration among health care teams
  • making data reporting easier
  • identifying medication allergies or prescribing errors early
  • reducing medical errors by preventing duplicate tests
  • incorrect dosages, etc.
  • speeding up the transfer of electronic medical records between healthcare facilities

Medical billing systems

  Medical billing systems are used by healthcare providers and healthcare facilities to automate essential healthcare billing tasks and process medical and health insurance claims. They can be designed for any healthcare provider, from individual healthcare professionals such as:

  • physicians
  • chiropractors
  • acupuncturists
  • physical therapists
  • massage therapists etc.
  • dentists

Billing can be provided to larger organizations such as hospitals or healthcare facilities that provide medical care on a much larger scale.

Electronic health records (EHR) 

As of 2015, more than half of American healthcare providers use electronic health records (EHRs). EHRs store patient information in digital form, so it’s easily accessible by healthcare providers when needed. 

This makes it easier for healthcare professionals to access critical patient data quickly and ensure they have all the information they need to provide the best healthcare possible. 

It also helps healthcare facilities manage patient records and electronic medical charts, making it much easier and more efficient to use in healthcare settings. 

Healthcare CRM software 

Healthcare CRM (customer relationship management) software is used by healthcare professionals to:

  • manage healthcare marketing campaigns
  • analyze healthcare data and trends
  • improve healthcare services
  • manage healthcare providers’ business contacts
  • generate healthcare sales leads
  • track customer feedback and more. 

Healthcare business intelligence and analytics 

Healthcare business intelligence and healthcare analytics software is used to:

  • develop healthcare data reports that healthcare professionals can use to analyze industry trends
  • capture customer feedback
  • improve healthcare services, etc. 

PACS (picture archiving and communication system) 

A PACS is an electronic system used by healthcare facilities to store medical images such as x-rays, CT scans, MRI scans, ultrasounds, etc. 

So they’re easily accessible in healthcare settings. 

Medical practice management software 

As the healthcare industry continues to grow, more and more physicians are looking for ways to streamline their business operations to provide quality healthcare services while still keeping up with all the important administrative tasks that need to get done every day. 

For this reason, there’s a growing demand for medical practice management software that helps doctors keep track of patients’ billing information, maintain healthy cash flow, and manage incoming payments.

Patient medical records 

Patient medical records are the healthcare equivalent of a patient’s chart, which is basically a record of everything from their healthcare history to what kinds of healthcare services they’ve received in the past. 

Medical coding 

Medical coders determine the appropriate healthcare procedure codes and supply them to billing staff, who then use them to submit healthcare claims and bills for reimbursement. The more accurate these procedure codes are, the more likely healthcare providers will get paid on time and avoid insurance payment denials altogether. 

Without medical coders, healthcare providers would have a tough time keeping track of all their billing information and ensuring they receive payment for all the healthcare services they provide. 

Healthcare patient relationship management (PRM) software 

Healthcare PRM technology is used by healthcare facilities and healthcare professionals to develop healthcare data reports to analyze industry trends, capture customer feedback, improve healthcare services, etc. Healthcare PRM software also helps healthcare providers manage their patient relationships and communicate with patients more efficiently. 

HIPAA compliance software 

As the healthcare industry grows and becomes more complex, medical facilities need HIPAA (the Health Insurance Portability and Accountability Act ). Compliant medical software helps them keep track of all the essential administrative tasks to provide quality healthcare services. 

HIPAA compliance software also helps healthcare organizations manage healthcare data security, comply with healthcare privacy laws, etc. 

AI diagnosis software 

AI diagnosis software is healthcare software that uses artificial intelligence and machine learning to help healthcare professionals diagnose and treat patients. 

Mobile health (mHealth) 

mHealth or mobile health apps are programs designed specifically for smartphones and tablets. 

They allow healthcare providers to:

  • access important information like patient medical records
  • store electronic medical images
  • track patient progress
  • collaborate with healthcare colleagues
  • communicate with patients, etc.

Point of care technology (POCO)

Point of care technology (POCO) is healthcare software that healthcare professionals use to access critical healthcare information at the point of care where healthcare decisions are made. 

POCO provides an easy way for medical providers to access patient records, track their progress, collaborate with colleagues, and communicate with patients. This type of technology also makes it easier for medical facilities to manage their HIPAA compliance and remain in compliance with privacy laws.

Telemedicine healthcare software

Telemedicine healthcare software is healthcare software that healthcare providers use to provide healthcare services via remote communication methods like phone calls, videoconferencing, etc. 

This type of healthcare software allows healthcare providers to connect with patients more conveniently and efficiently. Telemedicine healthcare software also helps healthcare providers manage their patient relationships and communicate with patients more effectively.

Remote patient monitoring (RPM) healthcare software

Remote patient monitoring (RPM) is healthcare software that allows medical facilities to manage chronic diseases and keep track of their patient’s health conditions. 

Using RPM technology, medical providers can access relevant information like vital signs, weight changes, etc., share relevant data with healthcare staff members through secure messaging, receive alerts when significant changes in a patient’s healthcare condition, etc.

Lab information management system (LIMS) healthcare software

Lab information management system (LIMS) healthcare software is a type of healthcare software that allows healthcare organizations to automate their medical laboratory testing operations. 

The data generated by the LIMS helps healthcare facilities with tasks like:

  • generating reports for patients’ test results
  • requisitioning tests from outside or in-house laboratories
  • tracking down lost samples, etc. 

This technology also helps healthcare providers manage samples with speed and accuracy.

Health scheduling software healthcare software

Health scheduling is software providers use to schedule patient appointments and keep track of all the critical information related to each patient’s appointment.  This helps medical facilities maintain accurate and up-to-date patient records with minimal effort. 

Contact us today if you’re looking for healthcare software that can help you manage your healthcare organization more efficiently. We specialize in software development and can create a perfect solution for your needs.

Original article source at: https://www.blog.duomly.com/

#type #healthcare #software 

26 Best Different Healthcare Software Types
Oral  Brekke

Oral Brekke

1670473769

5 Best Important Database Concepts for the Software Engineer

If you have this guide at hand at all times, you don’t need to distract your database experts every time a data need arises during a software development process.

Software engineering jobs are a good fit for people capable of dealing with diverse concepts. These concepts range from requirements analysis, team leadership, project management, scripting languages, testing techniques, to continuous integration, just to name a few. Then, there are a bunch of important database concepts for a software engineer to know: normalization, denormalization, SQL, No-SQL, ERDs, query optimization, etc. The list goes on!

In short, software engineering is for those who can do a little bit of everything while paying a lot of attention and care to each task. If you are one of those people, congratulations! You have a great career full of interesting challenges ahead of you.

I am a connoisseur of the database universe with experience on several software development teams. Let me guide you through the most important database concepts for a software engineer.

If you like checklists – if you are or expect to be a software engineer, you should like them – let's start by looking at a quick checklist of the database concepts you need to know:

  • Database design
  • SQL language
  • Relational database queries and optimization
  • Transactions
  • Object-relational mapping

We will analyze these in depth below.

Of course, there are more besides the ones included in this shortlist. To get a full view, read this article about the BEST ONLINE RESOURCES FOR LEARNING SQL AND DATABASE CONCEPTS.

Database Design

Part of a software engineer’s job is to make sure all deliverables passed from one member of the development team to another meet their objectives. For example, a requirements analysis should be clear, concise, and complete. A use case should contain all the information necessary for a coder to implement it. A piece of source code must fulfill the function explained in the use case. A test report should accurately describe all the defects found during a test run.

Also, a data model needs to fit a set of requirements and serve for generating a database with good performance and data integrity. Normally, software engineers do not spend time creating data models on their own. But they need to be able to sit down with a data modeler and analyze a model. They also need to determine if the model is well done. That is why ERD knowledge stays among the most critical database concepts for a software engineer.

How to Look at an ERD

Entity-relationship diagrams (ERDs) provide a graphical representation of the relationships between the objects that make up a data model. Data modelers use them primarily as tools to DOCUMENT AND COMMUNICATE DESIGN DECISIONS. As a software engineer, you should, at a minimum, be able to read an ERD, understand its logic, know what it represents, and determine if it correctly reflects the requirements of the software product being developed.

Having all that information, you can ask the data modelers the reasons for their design decisions and verify if those decisions are the right ones. You also need to detect, by looking at an ERD, if the database designer has misinterpreted a requirement or introduced an error in the data model that may lead to a serious bug in the software.

Concepts related to the interpretation of an ERD you should understand are the cardinality of relationships (one-to-one, one-to-many, or many-to-many), the choice of primary keys, the meaning of certain schema structures such as parent-child relationships, and common data warehousing schema types.

5 Important Database Concepts for the Software Engineer

As a software engineer, you should be able to read almost any ERD and understand what it means.

ERDs are presented at three different levels: conceptual, logical, and physical. It is usually sufficient for the software engineer to be able to read and understand the conceptual and logical models since the physical models are derived from them, only adding information necessary to implement the model in a particular database system.

On the other hand, with the aid of an intelligent data modeling tool such as VERTABELO, the physical diagrams can be generated automatically from the logical diagrams with complete confidence they are error-free. For this reason, a software engineer usually does not need to worry about reviewing physical diagrams.

One important thing every software engineer needs to be able to see in an ERD is whether the database schema is normalized and whether it needs to be. This brings us to the next item on our checklist.

Normalization and Denormalization

In transactional databases, normalization ensures database insert/update/delete operations do not produce anomalies or compromise the quality and integrity of the information. For identifying whether a design is normalized, important database concepts for a software engineer include primary keys, foreign keys, attribute dependencies, and surrogate keys.

An example of the problems associated with a non-normalized database is the potential anomalies that may appear in an e-commerce application. Such problems include the same product appearing twice in a sales report with two different names as if they were two different products.

In addition to avoiding these anomalies, normalization eliminates redundancies, which in turn reduces the storage space required by a database and improves query speed.

There are many normal forms, each one with its set of conditions. But you don’t need to memorize all of them. You can always read a guide on HOW TO REMEMBER DATABASE NORMAL FORMS. Most of the time, it’s sufficient to create schemas that comply with just the SECOND AND THIRD NORMAL FORMS.

In databases intended for analytical processing rather than transactional processing, you may need to make concessions to normalization so that you improve the performance of certain queries. These concessions are known as DENORMALIZATION TECHNIQUES. They usually involve adding some redundant attributes to avoid an excess of lookup tables. This helps deal with queries that add complexity and cost (in time and processing resources) for their resolution by the database engine.

Denormalization techniques are used only in schemas where data update is carried out by automatic or controlled processes. This is to avoid the risk of anomalies due to arbitrary information updates.

The SQL Language

Every software engineer needs to have a basic knowledge of SQL (Structured Query Language) for querying databases or for creating or modifying tables, indexes, views, or even a stored procedure or a trigger when needed. This knowledge allows you to perform some basic database tasks without taking time away from a DBA or database programmer.

A thorough knowledge of SQL concepts for a software engineer is probably not necessary. But you should have at least a full understanding of the SELECT command with its many clauses. It is especially important to understand the usefulness of JOIN clauses with all their variants – LEFT, RIGHT, INNER, and FULL – and the differences among them.

5 Important Database Concepts for the Software Engineer

Set theory may be helpful to better understand SQL JOINs.

To make good use of the database engine for writing efficient queries, you need to grasp the logic behind the relationships between the tables in an ERD. This helps you write the JOINs correctly in queries that include multiple tables. As a basic rule of thumb, fields involved in foreign key relationships between two tables are usually best suited for JOINs between them in a SELECT. For example, in the following ERD, you see the tables PAINTINGS and BUYERS are linked by the fields BUYER_NAME in PAINTINGS and NAME in BUYERS.

5 Important Database Concepts for the Software Engineer

You may want to use the fields involved in a foreign key relationship to JOIN tables in a SELECT statement.

This gives you the reassurance that your query results in good performance if you use the fields involved in a foreign key relation to join both tables in a SELECT.

SQL commands are subdivided into groups according to their functionality. The SELECT command with all its clauses forms a group in itself called DQL (Data Query Language).

There are two other commonly used groups of commands. DML (Data Manipulation Language) is used to insert, delete, or update rows in tables. DDL (Data Definition Language) is used to alter the structure of objects in a database. Examples where DDL is used include creating new tables, creating new fields in a table, and creating a view.

Query Optimization

Software engineers have too many things to do on a day-to-day basis for making performance improvement of a query a priority. Ideally, they should delegate this task to a SQL programmer, a DBA, a data modeler, or better yet, all of them together.

But even so, it is good to know what optimizing a query consists of, and in particular, how the creation of an index sometimes reduces the time a query takes to execute from hours to seconds. It is also good to be able to assess whether a DBA is telling the truth or just wants to avoid the task when he/she tells you a query cannot be optimized any more.

Query analysis tools allow you to “get inside the head” of an RDBMS to know what logic it applies when resolving a query. Query analysis breaks down each step required to get the data for that query and the cost in microseconds for each of those steps.

Optimizing a query often consists of finding the most time-consuming steps in the query execution plan and creating indexes to speed them up. You can read all about the VERY BASICS OF INDEX CREATION and solve some basic database performance problems yourself.

When you analyze a query execution strategy applied by an RDBMS, pay special attention to the steps that require the most work from the RDBMS. These include traversal of all the records in a table (called full table scan) or sequential traversal of the entries in an index (index scan).

A normalized database facilitates query optimization, as it does many other aspects of regular database use. This is yet another reason to spend time ensuring the data models are normalized.

Transactions

When an application sends data to a database, it commonly sends a sequence of insert, update, and delete operations. For example, recording data for an invoice may involve inserting rows in some tables, updating rows in others, and perhaps deleting rows in others.

All of these operations must be completed in their entirety or not run at all. If an error interrupts the sequence of these operations and it fails while executing, the information in the database can become inconsistent. This causes all sorts of data errors.

Transactions avoid this problem by preventing a sequence of interrelated operations from being partially executed. When a transaction is started, any error in the middle of the sequence causes the database to roll back to the time before the start of the sequence, leaving the data as it was before.

It is the responsibility of back-end programmers to open a transaction each time they start a sequence of interrelated write operations and close that transaction when finished.

Transactions must lock the tables they use to ensure the atomicity of a sequence of operations. One sequence should not collide with another that uses the same tables. A part of the database engine, called the transaction coordinator, acts as a traffic manager and instructs transactions to wait until another transaction using the same tables finishes.

The wait may be very long if a transaction takes too long to execute. Programmers must design their code intelligently to make transactions as fast as possible. This, of course, depends on the data model being correct and properly normalized (I cannot stress enough the model must be normalized). It is also vital that all tables involved in a transaction have indexes that minimize transaction time thus making the job easier for the database engine.

Another strategy to help avoid concurrent transaction problems applies particularly to data maintenance of master tables. If it is left to the users’ discretion to update, for example, the product or customer tables at any time, this may lead to deadlocks on these tables that prevent normal order entry. The correct strategy for these cases is to have a staging scheme for master data, from which the information is periodically and massively dumped to the production database on scheduled days or times.

Object-Relational Mapping

Object-relational mapping is a common area of work for backend programmers and database designers. As a software engineer, you need to know how work is done there and decide what part is for the database designer and what is for the back-end programmer.

Some examples of popular ORMs are Entity Framework, Hibernate, Django, and SQL Alchemy. Each of these depend on the programming language (e.g., Python, Java, C#) or the framework used to program the backend of an application.

ORMs make the logic of an application independent of the particularities of a database engine. This is particularly useful when it is known in advance an application must work (without adaptations) with different database engines.

This feature is very attractive for the backend programmer since it avoids the need to know the implementation details of a database. For the database designer, ORMs are not as appealing since they take away visibility into how the application interacts with the database.

As a software engineer, it is often your responsibility to arbitrate between these two opposing forces. Database designers want to resolve all the interactions between the application and the database with views, stored procedures, triggers, SQL scripts, jobs, and other tools of their choice. Backend programmers, on the other hand, want database designers to limit themselves to defining tables and indexes. They want everything else to be solved without leaving the realm of the source code in which they live.

It’s hard for me as a database designer to be impartial. But as a software engineer, you must be impartial and apply the right criteria to determine when ORMs are a solution and when they are a problem.

As I have said, ORMs seek to have all the logic of an application defined in the source code. In addition to decoupling the application from the database engine, the ORM ensures that a change in the application logic affects only the source code. If the application is installed in many places, upgrading it is simply a matter of distributing the new version to all these places, which can even be done automatically and at a minimal cost.

If, on the other hand, the application logic is implemented in database objects, upgrading the application to a new version may be very risky if it is installed in many places. No matter how careful you are in generating the upgrade scripts, you never know for sure what effect it has on the databases. Some data may cause an upgrade script to fail, and you have to spend time analyzing and resolving the failure, upgrade the application manually, then make sure the failed upgrade has not damaged the data.

If the application and the database are both installed in a single location and the version upgrade is done by deploying to that single location, the situation changes radically. In that case, it does not matter how many tables, views, stored procedures, or functions you have to update in the database. You can generate scripts and test them thoroughly until you are absolutely sure they work in the production database without causing any failure.

Not using ORMs has another advantage: it allows you to use all kinds of database engine tools to optimize performance and to debug database operations. This greatly reduces the costs and efforts required for application and database maintenance.

These Are Important Database Concepts for a Software Engineer, but Avoid Micromanagement

We’ve now seen all the important database concepts for a software engineer to master. Ideally, the engineer never needs to use this knowledge on a day-to-day basis for the development team to perform at its best and operate in a healthy climate. There may be exceptions in some cases, such as when the SQL programmer, the DBA, or the data modeler are on vacation or call in sick.

If the development team includes resources suited for working with databases, it is good for them to know the software engineer has mastered the essential database concepts. That way, they know there is a containment network to prevent errors from reaching the final product and the user’s hands if they miss an error. Everyone works with less pressure and performs better.

Good team leaders trust their team members to let them do what they do best. So, limit your oversight of the database people to a general review of the finished deliverables to curb any unintentional errors. And by all means, avoid looking over their shoulders to see if they are defining a primary key correctly, writing a SELECT correctly, or employing transaction handling properly to avoid deadlocks. Remember this knowledge is to help the team work better together, not to create frictions!

Original article source at: https://www.vertabelo.com

#database #software #engineer 

5 Best Important Database Concepts for the Software Engineer
Gordon  Matlala

Gordon Matlala

1670339354

Uninstall Software in Ubuntu – Command Line

How to uninstall software in Ubuntu from command line. In this guide you are going to remove software packages on your Ubuntu server or system from command line.

Using command line provide you more options and control over the software packages for removing. In this guide you are going to learn how to remove unused softwares.

Prerequisites

  • Root access to the server or a user with sudo privileges. Only root user or a sudo privileged user can only uninstall packages.

List Ubuntu Package Names

You can list out all the installed packages using the following command.

sudo apt list --installed

This command will print out a long list of installed packages. You can limit the results using the less command.

sudo apt list --installed | less

You can also search for specific packages using the grep command.

sudo apt list --installed | grep package_name

Remove Packages

You can remove packages using the following command.

sudo apt remove package_name

You can also remove multiple packages using a single command.

sudo apt remove package_name_1 package_name_2

The remove command uninstalls the given package and might leave some files or directories behind. So, if you want to remove the packages and all the files related to the package you can use the purge command instead of the remove command.

sudo apt purge package_name

Uninstall Snap Packages

If the package you wish to remove is not listed in the list command, it might be installed as a snap package.

You can list out the packages that are listed as snap using the following command.

snap list

You can remove the snap packages using the following command.

sudo snap remove package_name

Remove Unused Packages

When you install a package it also installs other dependency packages that are related to the package.

So, once you remove a package the dependency package will not be uninstalled and will remain in the system.

To remove these kind of unused packages you can use the autoremove command.

sudo apt autoremove

Prepare yourself for a role working as an Information Technology Professional with Linux operating system

Conclusion

Now you have learned how to uninstall software packages and remove all unused packages in your Ubuntu.

Thanks for your time. If you face any problem or any feedback, please leave a comment below.

Original article source at: https://www.cloudbooklet.com/

#ubuntu #line #software 

Uninstall Software in Ubuntu – Command Line
Rupert  Beatty

Rupert Beatty

1670334300

Best 8 Ideas for Measuring Your Open Source Software Usage

Wondering how to collect usage metrics for your open source software project? Consider the pros and cons of using these alternatives.

Those of us who support open source project communities are often asked about usage metrics — a lot. The goal of these metrics is usually to demonstrate the software's importance as measured by its user base and awareness. We typically want to know: how many people use the software, how many installations are there, and how many lives are being touched.

To make a long story short: We cannot answer these questions directly.

Sorry to disappoint you if you were hoping for a definitive solution. No one has the perfect answers to questions about usage metrics. At least, no precise answers.

The good news is that there are approximations and alternative metrics that can satisfy your thirst for knowledge about the software's usage, at least partially. This article explores these alternatives including their benefits and shortcomings.

Downloads

When you visit websites that offer software, you can often see how many times the software has been downloaded. An example that comes to mind is Firefox, which used to have a download counter. It was an impressive number and gave the impression that Firefox was a popular browser—which it was for a while.

However, individual behavior can directly impact the accuracy of this number. For example, when a person wipes their machine regularly, each rebuild incurs a separate download. To account for this reality, there needs to be a way to subtract a few dozen (maybe hundreds) downloads from the number because of that one person.

Not only can downloads overestimate usage, but they can also underestimate usage. For instance, a system administrator may download a new version of Firefox once to a flash drive and then install it on hundreds of devices.

Download metrics are easy to collect because you can log each download request on the server. The problem is that you don't know what happens to the software after it is downloaded. Was the person able to use the software as anticipated? Or did the person run into issues and abandon the software?

For open source projects, you can consider a variety of download metrics, such as the number of binaries downloaded from:

  • the project website
  • package managers such as npm, PyPi, and Maven
  • code repositories like GitHub, GitLab, and Gitee

You may also be interested in downloads of the source code because downstream projects are most likely to use this format (also read How to measure the impact of your open source project). Relevant download metrics include:

  • The number of clones (source code downloads) from code repositories like GitHub, GitLab, and Gitee
  • The number of archives (tar, zip) downloaded from the website
  • The number of source code downloads through package managers like npm, PyPi, and Maven

Download metrics for source code are an even less reliable measure than binary downloads (although there is no research to demonstrate this). Just imagine that a developer wants to use the most recent version of your source code and has configured their build pipeline to always clone your repository for every build. Now imagine that an automated build process was failing and retrying to build, constantly cloning your repository. You can also imagine a scenario where the metric is lower than expected—say the repository is cached somewhere, and downloads are served by the cache.

[ Related read 5 metrics to track in your open source community ]

In conclusion, download metrics are good proxies for detecting trends and providing context around current usage. We cannot define specifically how a download translates to usage. But we can say that an increase in downloads is an indicator of more potential users. For example, if you advertise your software and see that download numbers are higher during the campaign, it would be fair to assume that the advertisement prompted more people to download the software. The source and metadata of the download can also provide additional context for usage patterns. What versions of your software are still in use? What operating system or language-specific versions are more popular? This helps the community prioritize which platforms to support and test.

Issues

As an open source project, you probably have an issue tracker. When someone opens an issue, two common goals are to report a bug or request a feature. The issue author has likely used your software. As a user, they would have found a bug or identified the need for a new feature.

Obviously, most users don't take the extra step to file an issue. Issue authors are dedicated users and we are thankful for them. Also, by opening an issue, they have become a non-code contributor. They may become a code contributor. A rule of thumb is that for every 10,000 users, you may get 100 who open an issue and one who contributes code. Depending on the type of user, these ratios may differ.

With regard to metrics, you can count the number of issue authors as a lower-bound estimation for usage. Related metrics can include:

  • The number of issue authors
  • The number of active issue authors (opened an issue in the last 6 months)
  • The number of issue authors who also contribute code
  • The number of issues opened
  • The number of issue comments written

User mailing lists, forums, and Q&A sites

Many open source projects have mailing lists for users, a forum, and presence on a Q&A site, such as Stack Overflow. Similar to issue authors, people who post there can be considered the tip of the iceberg of users. Metrics around how active a community is in these mailing lists, forums, and Q&A sites can also be used as a proxy for increasing or decreasing the user base. Related metrics can focus on the activity in these places, including:

  • The number of user mailing list subscribers
  • The number of forum users
  • The number of questions asked
  • The number of answers provided
  • The number of messages created

Call-home feature

To get accurate counts of users, one idea is to have your software report back when it is in use.

This can be creepy. Imagine a system administrator whose firewall reports an unexpected connection to your server. Not only could the report never reach you (it was blocked), but your software may be banned from future use.

Responsible ways to have a call-home feature is an optional service to look for updates and let the user know to use the latest version. Another optional feature can focus on usage telemetry where you ask the user whether your software may, anonymously, report back how the software is used. When implemented thoughtfully, this approach can allow users to help improve the software by their style of using it. A user may have the opinion: "I often don't allow this usage information sharing but for some software I do because I hope the developers will make it better for me in the long term."

Stars and forks

Stars and forks are features on social coding platforms like GitHub, GitLab, and Gitee. Users on these platforms can star a project. Why do they star projects? GitHub's documentation explains, "You can star repositories and topics to keep track of projects you find interesting and discover related content in your news feed." Starring is the equivalent of bookmarking and also provides a way to show appreciation to a repository maintainer. Stars have been used as an indicator of the popularity of a project. When a project has a big announcement that attracts considerable attention, the star count tends to increase. The star metric does not indicate the usage of the software.

Forks on these social coding platforms are clones of a repository. Non-maintainers can make changes in their fork and submit them for review through a pull request. Forks are more a reflection of community size than stars. Developers may also fork a project to save a copy they can access even after the original repository has disappeared. Due to the use of forks in the contribution workflow, the metric is a good indicator for the developer community. Forks do not typically indicate usage by non-developers because non-developers usually do not create forks.

Social media

Social media platforms provide gathering places for people with shared interests, including Facebook, Instagram, LinkedIn, Reddit, Twitter, and more. Using a social media strategy, open source projects can attract people with interest and affinity for their projects by setting up respective gathering spaces on these platforms. Through these social media channels, open source projects can share news and updates and highlight contributors and users. They can also be used to meet people who would not otherwise interact with your project.

We are hesitant to suggest the following metrics because they have no clear connection to actual usage of your software and often require analysis for positive, negative, and neutral sentiment. People may be excited about your project for many different reasons and want to follow it without actually using it. However, like other metrics already discussed, showing that you are able to draw a crowd in social media spaces is an indicator of the interest in your project overall. Metrics for different social media platforms may include:

  • The number of followers or subscribers
  • The number of messages
  • The number of active message authors
  • The number of likes, shares, reactions, and other interactions

Web analytics and documentation

Website traffic is a useful metric as well. This metric is influenced more by your outreach and marketing activities than your number of users. However, we have an ace up our sleeve: our user documentation, tutorials, handbooks, and API documentation. We can see what topics on our website draw attention, including documentation. The number of visitors to the documentation would arguably increase with an increase in the number of discrete users of the software. We can therefore detect general interest in the project with visitors to the website and more specifically observe user trends by observing visitors to the documentation. Metrics may include:

  • The number of website visitors
  • The number of documentation visitors
  • The duration visitors spend on your website or in documentation

Events

Event metrics are available if you are hosting events around your project. This is a great way to build community. How many people submit abstracts to speak at your events? How many people show up to your events? This can be interesting for both in-person and virtual events. Of course, how you advertise your event strongly influences how many people show up. Also, you may co-locate your event with a larger event where people travel anyway, and thus, are in town and can easily attend your event. As long as you use a consistent event strategy, you can make a case that a rise in speaker submissions and attendee registrations are indicative of increasing popularity and user base.

You don't need to host your own event to collect insightful metrics. If you host talks about your project at open source events, you can measure how many people show up to your session focused on your project. At events like FOSDEM, some talks are specifically focused on updates or announcements of open source projects and the rooms are filled to the brim (like almost all sessions at FOSDEM).

Metrics you might consider:

  • The number of attendees at your project-centric event
  • The number of talks submitted to your project-centric event
  • The number of attendees at your project-centric talks

Conclusion about approximating usage of open source software

As we've illustrated, there are many metrics that can indicate trends around the usage of your software, and all are imperfect. In most cases, these metrics can be heavily influenced by individual behavior, system design, and noise. As such, we suggest that you never use any of these metrics in isolation, given the relative uncertainty of each one. But if you collect a set of metrics from a variety of sources, you should be able to detect trends in behavior and usage. If you have the means to compare the same set of metrics across multiple open source projects with commonalities—such as similar functionality, strong interdependencies, hosted under the same foundation, and other characteristics—you can improve your sense of behavioral baselines.

Note that in this overview, we've also chosen to highlight metrics that evaluate direct usage. As most software depends on a variety of other software packages, we would be remiss if we did not mention that usage and behavior can also be heavily impacted by indirect usage as part of a dependency chain. As such, we recommend incorporating the count of upstream and downstream dependencies as another layer of context in your analysis.

In closing, as the wielder of data and metrics, we encourage you to recognize the power and responsibility that you have for your stakeholders. Any metric that you publish has the potential to influence behavior. It is a best practice to always share your context—bases, sources, estimations, and other critical contextual information—as this will help others to interpret your results.


We thank the CHAOSS Community for the insightful conversation at CHAOSScon EU 2022 in Dublin, Ireland that sparked the idea for this blog post and to the CHAOSS Community members who reviewed and helped improve this article.

Original article source at: https://opensource.com/

#opensource #software #usage #datascience 

Best 8 Ideas for Measuring Your Open Source Software Usage
Oral  Brekke

Oral Brekke

1669812360

How Set Up Automated Software Testing with This Open Source Platform

Cerberus Testing offers a series of new features and improvements to allow you to easily set up automated tests for your software engineering team.

Automated testing is an important stage of development. It helps you ensure code quality, discover bugs before they ship, and guarantee that an application works the way it's intended to work. Deployment of automated tests is rapidly becoming a top priority for companies all over the world.

The latest release of the Cerberus Testing platform offers a series of new features and improvements to allow you to easily set up automated tests for your software engineering team.

Intuitive design

The philosophy of Cerberus Testing is to facilitate cross-functional collaboration on automated tests around a shared interface. Usability has been a major focus of the latest version, with an emphasis on making onboarding simple. The vision of the Cerberus experience is a one-click setup. You can create, execute, and visualize an automated test in less than 30 seconds, whether you're familiar with Cerberus or not.

The Cerberus Testing user interface is easy to use.

(Antoine Craske, CC BY-SA 4.0)

This new version realizes this promise for web application testing thanks to the new design, and Cerberus's automation library. Future enhancements will support more advanced use cases, such as mobile and API testing working directly in the cloud.

Apache Kafka

There's a need for massive data processing in event-driven architecture. This asynchronism, however, must be designed and implemented. Apache Kafka is the preeminent platform supporting massive connectivity of producers and consumers, exchanging messages without defined structures, or else defined by Avro schemas.

Apache Kafka integration now includes support for Avro schemata.

(Antoine Craske, CC BY-SA 4.0)

For several years, Cerberus Testing has supported the testing of event-driven and microservices components with Apache Kafka. Cerberus Testing now also supports Avro schemas.

That's not all the latest release does for Apache Kafka, though. Other improvements are also available, including centralized management of your Kafka configurations to facilitate maintainability, and the ability to search and test elements present in the "headers" of messages.

Advanced use cases

Anyone who designs test automation knows that the old adage "the devil is in the details" is as relevant as ever in this business. There is no "normal" use case for a test suite. Every challenge is unique, but Cerberus Testing provides a toolkit that includes image recognition, file manipulation, multi-criteria validation, and more.

The image recognition available in Cerberus Testing now allows you to target a specific offset on the screen. You can activate a delay for keypress actions, or even utilize character recognition.

There are also improvements for test cases that require uploading and downloading files, new checks for lists of numeric values, and batch test execution relaunch from the interface.

A new and improved website

This new version follows a complete redesign of the Cerberus Testing website for better readability and access to the platform's documentation and resources. There, you can also browse training opportunities and explore partners.

Try Cerberus Testing

The latest version of Cerberus Testing provides a scalable test automation platform that supports Agile and DevOps approaches. To try it for yourself, or to contribute to the project, visit our Git repository.

Original article source at: https://opensource.com/

#testing #software #opensource 

How Set Up Automated Software Testing with This Open Source Platform

Juliaflow: A Controller for Software-defined Networking (SDN)

JuliaFlow

JuliaFlow is a controller for software-defined networking (SDN) that implements the OpenFlow Controller Specification 1.0.0. It is coded entirely using Julia, which is a fast, dynamic language for technical computing.

Intro

Software-defined networks separate the data-path and the control logic that usually resides in a switch into distinct components. This allows one to use low-cost commodity switches. These are sometimes referred to as dumb switches, since their functionality is greatly reduced in contrast to full-blown enterprise-grade switches. In SDNs the actually interesting logic resides in the controller, which is a software component, that can be run on off-the-shelf hardware.

The concept of separating data-path from control-path has a number of benefits:

  • researchers can implement and experiment with their own alternatives to established network and transport protocols,
  • researchers can experiment with novel switching and routing algorithms to manage security, quality of service and many other criteria,
  • providers can flexibly program their networking infrastructure and achieve a new level of vendor-independence.

All this can entirely be achieved by using software-based switches and controllers. For production deployments one can use high performance hardware switches to boost throughput and achieve increased efficiency.

SDN components (data-path and controller) usually implement the OpenFlow Specification to communicate with each other. Although OpenFlow has reached version 1.4.0 already, the most widely implemented version is 1.0.0.

JuliaFlow implements a controller for SDNs based on OpenFlow version 1.0.0. The language of choice is called Julia, which is a novel language for technical computing. Although it bears a resemblance to Octave and Matlab it is much more powerful in terms of expressiveness. This makes Julia a good choice for an SDN controller, since it allows it to be extended with ease. At the same time Julia reaches high performance, which is often within a factor of two of the performance of C programs. JuliaFlow leverages Julia's benefits to deliver great extensibility and great performance at the same time!

Features

These are JuliaFlow's most striking features:

  • Provides a layer 2 learning switch out-of-the-box,
  • allows easy extension by implementing reactive handler functions,
  • delivers a performance that compares well with Pox (Python) and Nox (C++),
  • integrates seamlessly with Julia's long list of packages (e.g. optimisation, statistical analysis, distributed map-reduce, plotting, signal processing),
  • can easily be ported to a newer version of OpenFlow.

The last point is striking and has a simple explanation: Most of JuliaFlow's controller is actually generated at start-up via Julia macros, which are very similar to Lisp macros. This means, that JuliaFlow's implementation with regards to complying to OpenFlow relies mostly on typing in the C-structs from the OpenFlow spec faithfully as Julia types. Serialisation and deserialization are handled by applying the prepared macros. By extension this approach makes JuliaFlow a prime candidate to implement a highly performant OpenFlow switch.

In summary JuliaFlow hits a sweet spot between performance and simple extensibility.

Performance

The performance of OpenFlow-based SDN controllers is usually tested using a benchmarking tool called cbench. On a MacBook Air (i7) JuliaFlow handles approximately 17K flow modification messages (FlowMods) per second. Pox reaches approximately 7K FlowMods per second.

Usage

To try out JuliaFlow you need to install Julia at least in version 0.2. Please refer to the corresponding documentation of the Julia project. Once you have Julia up and running, clone this repository and start the layer 2 learning switch with the following command on your CLI:

julia start_l2learning.jl

Alternatively you can start up Julia's REPL ("julia") and evaluate the startup script there:

julia
include("start_l2learning.jl")

These commands will start the controller, which will listen on port 6633 on localhost.

Since an OpenFlow controller without a switch does not make too much sense, feel free to try it out with Mininet, Open vSwitch or benchmark it using cbench.

Implementing your own controller

Implementing your own controller requires you implement handlers for request coming from the switch. The type of incoming message is distinguished by leveraging Julia's multiple dispatch feature. Incoming messages will automatically be serialised to a value of corresponding type. Multiple dispatch will then choose the most specific handler for the given message type. In practice this means that you can just provide the handler methods, which you would actually like to use. For all other message types you can define a catch-all method. The most generic message type in JuliaFlow is called OfpMessage, thus you can define a catch-all method like this:

# Catch-all message handler.
function processrequest!(message::OfpMessage, socket_id::Integer)
    # warn("Got a message for which there is no processing rule: $(string(message))")
end

processrequest! is the name of our handler-function. The naming is up to you, but it needs to be the same for all the method that you are implementing. Note that the name should and with an exclamation mark, since it potentially changes the state of the second argument (socket_id). The first argument is the de-serialised message. In the catch-all method it is of type OfpMessage, which is an abstract type. If there is no more specific method (e.g. with OfpQueueGetConfigRequest as second argument type), this handler is going to be called for all kinds of incoming messages. The second argument is always the same: an opaque identifier for the switch that has contacted us.

Often handler methods will mirror a pattern that checks for the concrete message type of a potentially ambiguous message, before preparing and returning response messages that will be sent source of the request:

function processrequest!(msg::OfpEmptyMessage, socket_id::Integer)
    resp::Vector{OfpMessage} = Array(OfpMessage, 0)
    if msg.header.msgtype == OFPT_HELLO
        info("Got HELLO, replying HELLO")
        info(string(msg))
        tables[socket_id] = Dict{Uint8, Uint16}()
        push!(resp, OfpEmptyMessage(OfpHeader(OFPT_HELLO, 8)))
        push!(resp, OfpEmptyMessage(OfpHeader(OFPT_FEATURES_REQUEST, 8)))
    elseif msg.header.msgtype == OFPT_ECHO_REQUEST
        info("Got ECHO_REQUEST, replying ECHO_REPLY")
        info(string(msg))
        push!(resp, OfpEmptyMessage(OfpHeader(OFPT_ECHO_REPLY, 8)))
    elseif ...
        ...
    end
    resp
end

In the example above we receive an empty message, which means there is no message body. We test the header for the actual message type. In case it is a HELLO-request, we prepare a HELLO-response. This message and a request for the switch configuration is then added to a previously prepared collection, which serves as container for response messages. Each handler method is expected to return a vector of messages (Vector{OfpMessage}) even if it is empty. This is good practice anyway, since one should write 'type-stable' functions (i.e. functions that always return values of the same type') for reasons of performance. Note that in our example we use a variable tables. This is a reference to a variable which resides in the top-level scope of our current module. You can define such variables as required. In the case of a L2 learning switch the tables variables links data-link addresses to ports for a certain switch.

Once you have implemented all the handlers your controller requires, you can start the controller by providing your handler like this:

require("l2learningswitch.jl")
OpenFlow.start_server(L2LearningSwitch.processrequest!, 6633)

The second argument specifies the port, is optional and defaults to 6633, which is the default port for OpenFlow communication according to the specification.

Code examples

What follows is an example for the handler method of the L2 learning switch for the OFP_PACKET_IN request.

# Known locations. (DL_addr=>Port)
# OfpPacketIn
function processrequest!(msg::OfpPacketIn, socket_id::Integer)
    resp::Vector{OfpMessage} = Array(OfpMessage, 0)
    if msg.header.msgtype == OFPT_PACKET_IN
        info("Got OFPT_PACKET_IN")
        info(string(msg))
        table = tables[socket_id]
        dl_src = msg.data[7:12]
        dl_dst = msg.data[1:6]
        dl_type = btoui(msg.data[13], msg.data[14])
        dl_src_ui = btoui(0x00, 0x00, dl_src[1], dl_src[2], dl_src[3], dl_src[4], dl_src[5], dl_src[6])
        dl_dst_ui = btoui(0x00, 0x00, dl_dst[1], dl_dst[2], dl_dst[3], dl_dst[4], dl_dst[5], dl_dst[6])
        # Do we know the source? If not store it in the controller.
        if !haskey(table, dl_src_ui)
            # Add dl_src to the local table and add a flow entry.
            table[dl_src_ui] = msg.in_port
        elseif table[dl_src_ui] != msg.in_port
            # warn("DL_ADDR $(dl_src) has moved from port $(table[dl_src_ui]) to $(msg.in_port)")
            table[dl_src_ui] = msg.in_port
            # TODO update the flow entry.
            # TODO remove the old flow entry.
        end
        # Do we know the destination? If yes create a flow, if not flood.
        if haskey(table, dl_dst_ui)
            match = OfpMatch(
                OFPFW_ALL $ (OFPFW_DL_SRC | OFPFW_DL_DST),
                0x0000,
                dl_src,
                dl_dst,
                0x0000,
                0x00,
                0x0000,
                0x00,
                0x00,
                uint32(0),
                uint32(0),
                0x0000,
                0x0000
            )
            actions = OfpActionHeader[OfpActionOutput(
                OFPAT_OUTPUT,
                0x0008,
                table[dl_dst_ui],
                0x0060
            )]
            flomod = OfpFlowMod(
                OfpHeader(OFPT_FLOW_MOD),
                match,
                uint64(0),
                OFPFC_ADD,
                FLOW_IDLE_TIMEOUT,
                FLOW_HARD_TIMEOUT,
                0x8000,
                msg.buffer_id,
                OFPP_NONE,
                OFPFF_SEND_FLOW_REM,
                actions
            )
            push!(resp, flomod)
            # Create a flow for the other direction as well.
            match = OfpMatch(
                OFPFW_ALL $ (OFPFW_DL_SRC | OFPFW_DL_DST),
                0x0000,
                dl_dst,
                dl_src,
                0x0000,
                0x00,
                0x0000,
                0x00,
                0x00,
                uint32(0),
                uint32(0),
                0x0000,
                0x0000
            )
            actions = OfpActionHeader[OfpActionOutput(
                OFPAT_OUTPUT,
                0x0008,
                table[dl_src_ui],
                0x0060
            )]
            flomod = OfpFlowMod(
                OfpHeader(OFPT_FLOW_MOD),
                match,
                uint64(0),
                OFPFC_ADD,
                FLOW_IDLE_TIMEOUT,
                FLOW_HARD_TIMEOUT,
                0x8000,
                0xffffffff,
                OFPP_NONE,
                OFPFF_SEND_FLOW_REM,
                actions
            )
            push!(resp, flomod)
        else
            actions = OfpActionHeader[OfpActionOutput(OFPAT_OUTPUT, 0x0008,
                OFPP_FLOOD, 0x0080)]
            pout = OfpPacketOut(OfpHeader(OFPT_PACKET_OUT), msg.buffer_id,
                msg.in_port, give_length(actions), actions)
            push!(resp, pout)
        end
    else
        warn("Got a message of type $(msg) containing a header with msgtype: $(msg.header.msgtype). Something is wrong!")
        warn(string(msg))
    end
    resp
end

This example is analogous to Pox's implementation of the L2 learning switch. If we receive a packet-in message we store a link of the source's datalink address to its originating switch port. If we know the destination already, we create a flow-modification message that matches source and destination bi-directionally accordingly. If we do not know the target yet, we simply flood the inbound message on all but the incoming port.

This example is instructive since it demonstrates how to filter for (multiple dispatch) and inspect incoming messages, and how to generate complex outbound messages. The available types follow a naming scheme that resembles that of the OpenFlow version 1.0.0 specification. All types and implicitly their type hierarchy and constructors can be found under incl/oftypes.jl.

Download Details:

Author: pchronz
Source Code: https://github.com/pchronz/juliaflow 

#julia #software #networking 

Juliaflow: A Controller for Software-defined Networking (SDN)
Jack  C

Jack C

1666859340

Top 10+ Software coins by volume

In this article, you'll see Top 10+ Software coins by volume, date: 27/10/2022

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DescribeWebsiteExchange

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DescribeWebsiteExchange
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Read more: Top 100 Crypto Programmers you need to follow

Thank for visiting and reading this article! Please share if you liked it!

#blockchain #bitcoin #cryptocurrency #token #software 

Top 10+ Software coins by volume

Flarum: Simple forum Software For Building Great Communities

About Flarum

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screenshot

Installation

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Contributing

Thank you for considering contributing to Flarum! Please read the Contributing guide to learn how you can help.

This repository only holds the Flarum skeleton application. Most development happens in flarum/core.

Security Vulnerabilities

If you discover a security vulnerability within Flarum, please follow our security policy so we can address it promptly.

Download Details:

Author: Flarum
Source Code: https://github.com/flarum/flarum 
License: MIT license

#php #laravel #software 

Flarum: Simple forum Software For Building Great Communities

5 Popular PHP Libraries for Working with Notification Software

In today's post we will learn about 5 Popular PHP Libraries for working with notification software. 

What is Notifications?

A notification is a message, email, icon, or another symbol that appears when an application wants you to pay attention. Notifications are a way to let you know that something new has happened so you don't miss anything that might be worth your attention and appears whether you are using an application or not. An application can use notifications to let you know things that are happening when you're not using it, so you don't miss important information or activity that's taking place in the app.

Table of contents:

  • JoliNotif - A cross-platform library for desktop notification (support for Growl, notify-send, toaster, etc)
  • Notification Pusher - A standalone library for device push notifications.
  • Notificato - A library for handling push notifications.
  • Notificator - A lightweight notification library.
  • Php-pushwoosh - A PHP Library to easily send push notifications with the Pushwoosh REST Web Services.

1 - JoliNotif:

A cross-platform library for desktop notification (support for Growl, notify-send, toaster, etc)

JoliNotif is a cross-platform PHP library to display desktop notifications. It works on Linux, Windows or MacOS.

Requires PHP >= 7.4 (support for PHP 5 was available in version 1.x, for PHP 7.0 and 7.1 in version < 2.1.0, for PHP 7.2 and 7.3 in version < 2.4.0).

Installation

Use Composer to install JoliNotif in your project:

composer require "jolicode/jolinotif"

Usage

Use the NotifierFactory to create the correct Notifier (adapted to your OS), then use it to send your notification:

include __DIR__.'/vendor/autoload.php';

use Joli\JoliNotif\Notification;
use Joli\JoliNotif\NotifierFactory;

// Create a Notifier
$notifier = NotifierFactory::create();

// Create your notification
$notification =
    (new Notification())
    ->setTitle('Notification title')
    ->setBody('This is the body of your notification')
    ->setIcon(__DIR__.'/path/to/your/icon.png')
    ->addOption('subtitle', 'This is a subtitle') // Only works on macOS (AppleScriptNotifier)
    ->addOption('sound', 'Frog') // Only works on macOS (AppleScriptNotifier)
;

// Send it
$notifier->send($notification);

A shell executable is also provided to use JoliNotif from CLI:

jolinotif --title "Hello" --body "World"

View on Github

2 - Notification Pusher:

A standalone library for device push notifications.

Installation

composer require sly/notification-pusher

This repository uses PSR-0 autoload. After installation with composer please adjust you autoloading config if needed or include vendor/autoload.php in your index.php.

Getting started

NOTE If you want even easier start, please check our facades

First, we are going to discover this library entities:

  • Models (messages, pushes, devices)
  • Adapters (APNS, GCM (FCM) etc.)
  • The Manager

Here is the basic principle of a notification push:

A push has 3 main elements: a composed message, some defined devices to notify and an adapter matching with these devices. The manager has to collect all push notifications and send them.

Here is how to translate this with code (just a little not-working example):

<?php

// First, instantiate the manager and declare an adapter.
$pushManager    = new Sly\NotificationPusher\PushManager();
$exampleAdapter = new Sly\NotificationPusher\Adapter\Apns();

// Set the device(s) to push the notification to.
$devices = new Sly\NotificationPusher\Collection\DeviceCollection(array(
    new Sly\NotificationPusher\Model\Device('Token1'),
    new Sly\NotificationPusher\Model\Device('Token2'),
    new Sly\NotificationPusher\Model\Device('Token3'),
    // ...
));

// Then, create the push skel.
$message = new Sly\NotificationPusher\Model\Message('This is an example.');

// Finally, create and add the push to the manager, and push it!
$push = new Sly\NotificationPusher\Model\Push($exampleAdapter, $devices, $message);
$pushManager->add($push);
$pushManager->push();

foreach($push->getResponses() as $token => $response) {
    // ...
}

More about the Message entity

Some general options can be passed to the message entity and be used by adapters. A message pushed from APNS adapter can comport a "badge" or "sound" information which will be set with instance constructor second argument:

<?php

$message = new Sly\NotificationPusher\Model\Message('This is an example.', array(
    'badge' => 1,
    'sound' => 'example.aiff',
    // ...
));

Requirements

  • PHP 5.6+
  • PHP Curl and OpenSSL modules
  • Specific adapters requirements (like APNS certificate, GCM (FCM) API key, etc.)

WARNING Version v3.0 would support only php 7.0+. Please, update your composer config if needed.

Today available adapters

  • APNS (Apple)
  • GCM (Android) and FCM (Android)

Todo

  • Rewrite tests in PHPUnit 8+. (contributions are welcome!)
  • Add new features (custom APNS payloads, GCM and FCM custom options, etc.)
  • Add new adapters (like Blackberry and Windows phones)
  • Write more documentation and examples!

View on Github

3 - Notificato:

A library for handling push notifications.

Notificato takes care of push notifications in your PHP projects.

Italian: notificato è: participio passato English: notified

Why use Notificato instead of X?

Notificato has some advantages not all other PHP push libraries have:

  1. Supports multiple APNS certificates, so you can push to multiple Apps/Passbook Passes
  2. Takes excellent care of PHPs buggy SSL-sockets, handles quirks and error responses correctly
  3. Well tested with unit tests and nice Object-Oriented structure

Installation

Installation with Composer is recommended. Run the require command to add Notificato to your project:

composer require wrep/notificato

Suggestion: There is also a Notificato for Symfony bundle available, highly recommended for Symfony2 & Symfony3 users.

Getting started

  1. Take a look at the snippet below for a impression how Notificato works
  2. Read the documentation it will help you with common use cases
  3. Check out the API docs for a deeper understanding what Notificato is capable of
<?php
// This imports the Composer autoloader
require_once('vendor/autoload.php');

use Wrep\Notificato\Notificato;

class GettingStarted
{
	/**
	 * This example sends one pushnotification with an alert to Apples production push servers
	 */
	public function sendOnePushNotification()
	{
		// First we get a Notificato instance and tell it what certificate to use as default certificate
		$notificato = new Notificato('./certificate.pem', 'passphrase-to-use');

		// Now we get a fresh messagebuilder from Notificato
		//  This message will be send to device with pushtoken 'fffff...'
		//  it will automaticly be associated with the default certificate
		//  and we will set the red badge on the App icon to 1
		$message = $notificato->messageBuilder()
								->setDeviceToken('ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff')
								->setBadge(1)
								->build();

		// The message is ready, let's send it!
		//  Be aware that this method is blocking and on failure Notificato will retry if necessary
		$messageEnvelope = $notificato->send($message);

		// The returned envelope contains usefull information about how many retries where needed and if sending succeeded
		echo $messageEnvelope->getFinalStatusDescription();
	}

	/**
	 * This example reads all unregistered devices from Apples feedback service
	 */
	public function readFeedbackService()
	{
		// First we get the a Notificato instance and tell it what certificate to use as default certificate
		$notificato = new Notificato('./certificate.pem', 'passphrase-to-use');

		// Now read all "tuples" from the feedback service, be aware that this method is blocking
		$tuples = $notificato->receiveFeedback();

		// The tuples contain information about what device unregistered and when it did unregister.
		//  Don't forget to check if the device reregistered after the "invaidated at" date!
		foreach ($tuples as $tuple)
		{
			echo 'Device ' . $tuple->getDeviceToken() . ' invalidated at ' . $tuple->getInvalidatedAt()->format(\DateTime::ISO8601) . PHP_EOL;
		}
	}
}

$gettingStarted = new GettingStarted();
$gettingStarted->sendOnePushNotification();
$gettingStarted->readFeedbackService();

Contribute

We'll love contributions, read Contribute.md for some more info on what you can do and stuff that you should know if you want to help!

View on Github

4 - Notificator:

A lightweight notification library.

Notificator is a very simple and lightweight library to handle notifications the smart way.

It took inspiration from other libraries and patterns (Monolog and event dispatching) in order to provide a domain-driven lean notification library.

Concepts are very simple: you have a notification Manager which has a few handlers registered with it (maybe an Email handler, a Skype handler, etc.); you only have to create a notification class, define which handlers should handle it and trigger it through the manager.

It is way simpler in code than in words, check the documentation below!

Installation

Installation can be done via composer, as the library is already on packagist.

The library uses semantic versioning for its API, so it is recommended to use a stable minor version (1.0, 1.1, etc.) and stick to it when declaring dependencies through composer:

"namshi/notificator": "1.0.*",

Usage

Using this library is very easy thanks to the simple concept - borrowed from others - behind it: you basically have a notification manager with some handlers and then you fire (trigger()) the notification with the manager. At that point, all the handlers that need to fire that notification will take care of firing it in their context (might be an email, a skype message, etc) and tell the manager that they're done, so that the manager can forward the notification to the next handler.

<?php

// import namespaces
use Namshi\Notificator\Notification\Handler\NotifySend as NotifySendHandler;
use Namshi\Notificator\Manager;
use Namshi\Notificator\Notification\NotifySend\NotifySendNotification;

//  create the handler
$handler = new NotifySendHandler();

// create the manager and assign the handler to it
$manager = new Manager();
$manager->addHandler($handler);

$notification = new NotifySendNotification("...whatever message...");

//  trigger the notification
$manager->trigger($notification);

The notification Manager

The manager is the entity that registers all the handlers and fires the notification.

You can set and add handlers very easily:

<?php

$handler  = new MyHandler();
$handlers = array(
    new AnotherHandler(), new AnotherOneHandler(),
);

$manager = new Manager();

// add multiple handlers
$manager->setHandlers($handlers);

// add a single handler
$manager->addHandler($handler);

// reset the handlers
$manager->setHandlers(array());

View on Github

5 - Php-pushwoosh:

A PHP Library to easily send push notifications with the Pushwoosh REST Web Services.

First sample, creating a Pushwoosh message

// Create a Pushwoosh client
$pushwoosh = Pushwoosh::create()
    ->setApplication('XXXX-XXX')
    ->setAuth('xxxxxxxx');

// Create a request for the '/createMessage' Web Service
$request = CreateMessageRequest::create()
    ->addNotification(Notification::create()->setContent('Hello Jean !'));

// Call the REST Web Service
$response = $pushwoosh->createMessage($request);

// Check if its ok
if($response->isOk()) {
    print 'Great, my message has been sent !';
} else {
    print 'Oups, the sent failed :-('; 
    print 'Status code : ' . $response->getStatusCode();
    print 'Status message : ' . $response->getStatusMessage();
}

Easy, isn't it ?

Documentation

Framework Integrations

If you have integrated php-pushwoosh into a popular PHP framework let us know !

View on Github

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Web Push Notifications in Xampp with PHP

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5 Popular PHP Libraries for Working with Notification Software
Robert  Jack

Robert Jack

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CRYPTOCURRENCY EXCHANGE SOFTWARE DEVELOPMENT

The future of exchange development is here, based on the industry needs and trends this Cryptocurrency exchange software has been developed. The software package can be utilized to launch an exchange with the most robust security, stability and scalability. The Crypto Exchange Software Development Kit includes three modules: Trading Platform, Payment Gateway, and White Label Exchange Software.

CRYPTOCURRENCY EXCHANGE SOFTWARE DEVELOPMENT

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CRYPTOCURRENCY EXCHANGE SOFTWARE DEVELOPMENT