Functional vs Non-functional Requirements with Examples | Requirement Engineering process.

Title: Understanding Functional and Non-Functional Requirements

What are Functional Requirements?

Functional requirements define what the software should DO.
They describe the specific features, actions, and tasks the software must perform.

Examples of Functional Requirements

Login: Users should be able to log in with a username and password.
Search: The software should allow users to search for products by name or category.

What are Non-Functional Requirements?

Non-functional requirements define how the software should BE.
They focus on qualities like performance, usability, security, and more.

Examples of Non-Functional Requirements.

Performance: The software should respond to user actions within 2 seconds.
Usability: The interface should be easy to navigate for all users.

Key Differences: Functional vs. Non-Functional.

Functional requirements tell us WHAT the software should do.
Non-functional requirements tell us HOW the software should be (qualities).

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