What is the difference between functional requirements and nonfunctional requirements?
Category:
business and finance
business administration
Simply put, the difference is that non-functional requirements describe how the system works, while functional requirements describe what the system should do. One could also think of non-functional requirements as quality attributes for of a system.
Just so, what are examples of functional requirements?
Typical functional requirements include:
- Business Rules.
- Transaction corrections, adjustments and cancellations.
- Administrative functions.
- Authentication.
- Authorization levels.
- Audit Tracking.
- External Interfaces.
- Certification Requirements.
Also know, what are examples of non functional requirements?
A non-functional requirement defines the performance attribute of a software system. Types of Non-functional requirement are Scalability Capacity, Availability, Reliability, Recoverability, Data Integrity, etc. Example of Non Functional Requirement is Employees never allowed to update their salary information.
In systems engineering and requirements engineering, a non-functional requirement (NFR) is a requirement that specifies criteria that can be used to judge the operation of a system, rather than specific behaviors. They are contrasted with functional requirements that define specific behavior or functions.