Attributes of well defined requirements

List to for reading before define requirements:
  • Unambiguous: Precise and clear with only one interpretation. Consensus agreement.
  • Complete:  Every known aspect is described.
  • Consistent : No contradictions, uniform terminology used.
  • Measurable: In terms of time and cost, can it be estimated? Can it be verified against the implemented solution?
  • Testable: Requirements should be quantifiable.
  • Traceable: Must be able to track from project inception to delivery.
  • Design-free: “What” not “How.”
  • Understandable: Able to be understood by non-technical customers, system users and developers.

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