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Practical Project Initiation: A Handbook with Tools by Karl E Wiegers

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Trap #5: Imprecise Metrics Definitions

Symptoms

Vague, ambiguous metric definitions allow every practitioner to interpret them differently. One person counts an unnecessary software feature as a defect of type "Extra," whereas someone else does not. Time spent fixing a coding error discovered through testing is classified as test effort by one person, construction effort by another, and rework by a third. Trends in measures tracked over time might show erratic behavior because individuals are not collecting, reporting, or charting their results in the same way.

You’ll have a clue that your metrics definitions are inadequate if participants are frequently puzzled about what exactly they are being expected to measure. If you keep hearing questions ...

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