Functional Requirements and Non-Functional Requirements are essential aspects of software development that define the behavior and constraints of a system.
Functional Requirements
Describe what the system should do.
– Specify the functions, features, and behavior of the system, such as user interactions, data processing, and specific operations.
Examples
– User login functionality.
– Generating reports.
– Data storage and retrieval.
Non-Functional Requirements:
– Describe how the system performs its functions.
– Focus on the system’s quality attributes like performance, security, reliability, scalability, and usability.
Examples
– Response time should be under 2 seconds.
– The system must support 1,000 concurrent users.
– Data encryption for security.
Difference:
– Functional requirements focus on actions and tasks the system performs.
– Non-functional requirements focus on system characteristics and performance criteria.
Both types are crucial for delivering a fully functional and efficient software system