Difference Between Functional Requirements and Non functional Requirements in Tabular Form.

Functional RequirementsNon functional Requirements
A functional requirement describes what a software system should dowhile non-functional requirements place constraints on how the system will do so.
The functional requirement is describing the behavior of the system as it relates to the system’s functionality.The non-functional requirement elaborates a performance characteristic of the system.
  • Calculations
  • Technical details
  • Data manipulation
  • Data processing
  • Accessibility
  • Capacity, current and forecast
  • Compliance
  • Documentation
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