Use Cases

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What is a Use Case? 

Have you ever used an app on your phone or computer to do something like order food, send a message, or check the weather? Well, each time you interact with an app, you're following a kind of "script" that tells the app what to do. This "script" is what we call a use case.

In simple terms, a use case is just a way of describing how a person (or a system) interacts with an app or software to achieve something specific. It’s a story of how you use an app to get a task done. Let’s break it down further!


Think of a Use Case Like a Recipe

Imagine you're cooking a dish. To make that dish, you need a recipe that tells you the steps to follow. Similarly, in a use case, we list the steps that someone follows to complete a task using an app.

For example:

  • Recipe: How to make a sandwich.

    • Step 1: Take two slices of bread.
    • Step 2: Put some cheese on one slice.
    • Step 3: Add lettuce.
    • Step 4: Put the two slices together.


  • Use Case: How to send a message on your phone.

    • Step 1: Open the messaging app.
    • Step 2: Select the person you want to send a message to.
    • Step 3: Type your message.
    • Step 4: Hit "Send."


Just like how you follow each step in a recipe, a use case is the list of actions that a person needs to do to achieve their goal in an app.


Why Are Use Cases Important?

A use case helps everyone understand how an app or software should work—without needing any technical knowledge. Here are some reasons why use cases are helpful:

  1. Helps Designers Build Better Apps: By knowing the steps users take, designers can create apps that are easy to use.
  2. Makes Testing Easier: Developers and testers use use cases to check that everything works as it should.
  3. Clarifies the Goal: It makes it clear what the user wants to achieve. For example, the goal of sending a message is simply to "send a message," and a use case describes how to do that.

Conclusion

To sum it up, a use case is simply a step-by-step guide for using an app or website to complete a specific task. It shows how a user interacts with the system, what actions they take, and what the final result will be.

By breaking things down like this, use cases help designers, developers, and testers build better software that meets real people’s needs—and helps make sure everything works properly!

So, next time you use an app, you might just be following a use case without even realizing it!

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