Use cases - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a use case in programming?

A use case describes how a user or system interacts with a program to achieve a goal. It shows the steps and actions needed.

beginner

Why are use cases important before coding?

Use cases help understand what the program should do. They guide developers to write code that meets user needs.

beginner

Give an example of a simple use case for a calculator program.

Example: User wants to add two numbers. Steps: 1) User enters first number. 2) User enters second number. 3) User presses '+' button. 4) Program shows the sum.

intermediate

How do use cases help in testing a program?

Use cases provide scenarios to check if the program works as expected. Testers follow use case steps to find errors.

intermediate

What is the difference between a use case and a function in C?

A use case is about what the program should do from a user's view. A function is a block of code that performs a specific task inside the program.

What does a use case describe?

A The speed of program execution

B The syntax rules of the C language

C How users interact with a program to achieve a goal

D The memory layout of a program

A use case shows the interaction between users and the program to reach a goal.

Which is NOT a benefit of writing use cases before coding?

A Automatically generates code

B Guides program design

C Helps understand user needs

D Supports testing

Use cases help plan and test but do not automatically create code.

In a use case, what is the main focus?

A Variable declarations

B Hardware specifications

C Compiler errors

D User actions and program responses

Use cases focus on what users do and how the program responds.

How can use cases help testers?

A By fixing bugs automatically

B By providing scenarios to check program behavior

C By writing new functions

D By compiling the program

Testers use use cases as guides to verify the program works correctly.

Which statement is true about use cases and functions?

A Use cases describe user goals; functions are code blocks

B Functions describe user goals; use cases are code blocks

C Use cases and functions are the same

D Functions are only used in testing

Use cases explain what users want; functions are parts of the program code.

Explain what a use case is and why it is useful before writing C code.

Think about how use cases help plan what the program should do.

Describe how use cases can assist in testing a C program.

Consider how testers use step-by-step actions to verify the program.