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Functional Requirements vs Non-Functional Requirements

Developers should learn and use functional requirements to ensure that software is built to meet user expectations and business goals, reducing rework and misalignment meets developers should learn and use non-functional requirements to design robust, scalable, and maintainable software systems, as they directly impact user satisfaction and system success. Here's our take.

🧊Nice Pick

Functional Requirements

Developers should learn and use functional requirements to ensure that software is built to meet user expectations and business goals, reducing rework and misalignment

Functional Requirements

Nice Pick

Developers should learn and use functional requirements to ensure that software is built to meet user expectations and business goals, reducing rework and misalignment

Pros

  • +They are essential during the requirements analysis and design phases of software development, particularly in projects following methodologies like Waterfall or Agile, where clear specifications help in creating accurate estimates, test cases, and validation criteria
  • +Related to: non-functional-requirements, requirements-analysis

Cons

  • -Specific tradeoffs depend on your use case

Non-Functional Requirements

Developers should learn and use non-functional requirements to design robust, scalable, and maintainable software systems, as they directly impact user satisfaction and system success

Pros

  • +For example, in e-commerce applications, NFRs like response time under 2 seconds and 99
  • +Related to: software-architecture, system-design

Cons

  • -Specific tradeoffs depend on your use case

The Verdict

Use Functional Requirements if: You want they are essential during the requirements analysis and design phases of software development, particularly in projects following methodologies like waterfall or agile, where clear specifications help in creating accurate estimates, test cases, and validation criteria and can live with specific tradeoffs depend on your use case.

Use Non-Functional Requirements if: You prioritize for example, in e-commerce applications, nfrs like response time under 2 seconds and 99 over what Functional Requirements offers.

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The Bottom Line
Functional Requirements wins

Developers should learn and use functional requirements to ensure that software is built to meet user expectations and business goals, reducing rework and misalignment

Disagree with our pick? nice@nicepick.dev