Larry Putnam and Ware Myers combine substantial doses of common sense; a pragmatic insistence that you must measure in order to manage effectively; the realization that software engineering, like most other things in real life, has rhythms and patterns that can be understood if properly analyzed; and an optimism that things can get better. Their optimism is backed by copious industry data.
The authors propose a simple approach to software project management:
Understand key concepts for each management activity
Find metrics that quantify these concepts
Measure the activity
Find a pattern based on the measurements
Respond using the pattern as a guide
This approach applies whether you're managing a project, working to improve product reliability, or attempting to proceed to a higher level of software process maturity.