Going Serverless: 3-Tier Architectures Made Easy With AWS Lambda. A multi-tier architecture is a design pattern that is embraced. The most widely adapted multi-tier application type is the 3-Tier architecture.
A multi-tier architecture is a design pattern that is embraced by millions of developers around the world mainly because of its way of separating concerns clearly across many layers. The most widely adapted multi-tier application type is the 3-Tier architecture.
A 3 tiered architecture consists of mainly 3 layers. The Presentation Layer, Application Layer, and the Data Layer. Each layer has its own set of responsibilities and uses communication methods to interact with the other layers.
The Presentation Layer is basically the layer with which the end-user interacts. It can range from a mobile application to a single page web application.
The application layer consists of the business logic of the project. It handles the requests sent by the application layer and converts those requests to a specific domain-related issue and interacts with the Data Layer to give a suitable response to the client request.
The final layer is the Data Layer which has the responsibility of persisting data and providing the Application Layer with necessary data. This layer consists of some kind of database management system to store the domain-related data.
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