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Five Core Metrics: The Intelligence Behind Successful Software Management by Lawrence H. Putnam, Ware Myers

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Part II: The Metrics Needed for Effective Control

In this Part, we climb down from the high level of what stakeholders want to the concrete level of the five core metrics that support the intelligence that satisfies these needs:

1. schedule time

2. effort (person-months)

3. functionality (amount of work, often expressed in size)

4. defect rate

5. process productivity

Our first goal is to define each of these five metrics, enabling us to deal with them mathematically. Our second goal is to find the formula that correctly represents the relationship between these core metrics. Once we do that, we can work out the planning problems that software development presents to management:

• Planning: Given size and process productivity, we can estimate ...

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