4 Strategies Towards Good Requirements

Type: Rules

Gist

Left with the 3 Most Powerful Requirements Principles, what should you do? The following 4 rules can help you adhere to them.

Rules and Notes

R1: You should get to the point.
  • find the priority stakeholders and use their point of view
  • don't write requirements that arbitrarily constrain the scope
  • seperate strategic requirements from basics, and from solutions or designs
  • ask 'why' a couple of times (root-cause analysis)
R2: You should quantify requirements.

'don't be weary, it's less work than you think, once you tried

  • every quality requirement can be expressed in numbers (by definition)
  • every functional requirement is associated with at least one quality requirement (just ask 'how good?')
R3: You should give your requirements time to evolve, nobody really knows them completely and consistently, now.
  • you will find the real requirements by frequent delivery of your product to the stakeholders, e. g. by feedback
  • don't get trapped by the idea someone knows all the requirements just because you specify an existing system ' the world kept turning in the meantime, yielding 2-10% requirements creep per month.
R4. You should analyse the value of your requirements and then focus on the ones with best ROI.
  • the real requirements are the profitable ones
  • it is economic to focus on the top ten (max) requirements

Costs, Savings

<Would be great. What does it take to implement those rules? What does it give?>

Side effects

<Is there anything that happend or will happen as one implements the rules? This relates to both wanted and unwanted effects ('unwanted' does not imply 'negative').>

Quotes

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