Of course, there is never a single truth during software development. We always come up with multiple options and try to determine which one suits us the best according to the requirements we have.
For example, there may be an exchange of information between “client” and “server” at times. However, the information needed by the client may not be ready there yet.
Sample Scenario
If you say what are such scenarios, the simplest example I can give is the messaging application. Let’s call “Jake 👨‍💼(Client1)” to the person who sends the message in the messaging application and “Emily 👩 (Client2)” to the person who receives the message. Jake and Emily have both phones in their hands, messaging with each other. In this case, when Jake sends a message to the messaging app, Emily should be able to receive it in near real-time. Likewise, Emily should be able to receive the message sent by Jake near real-time. Imagine that you are designing a messaging application and rolled-up sleeves to meet this need. In this case, what solutions could we produce?

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