Maturity Level 4??”Quantitatively Managed
For Maturity Level 4, the organization has achieved all of the goals of Levels 2 and
3. The organization controls its processes by statistical and other quantitative techniques.
Product quality, process performance, and service quality are understood in
statistical terms and are managed throughout the life of the processes.
Level 4 focuses on using metrics to make decisions and to truly measure whether
progress is occurring and your product is improving. Distinctions between Level 3
and Level 4 are that at Level 3, processes are qualitatively predictable. At Level 4,
processes are quantitatively predictable. Level 4 addresses special causes of process
variation and takes corrective action.
Maturity Level 5??”Optimizing
The organization has achieved all of the goals of Levels 2, 3, and 4. Processes are
continually improved based on an understanding of common causes of variation
within the processes.
Level 5 is nirvana. Everyone is a productive member of the team, defects are
reduced, and your product is delivered on time and within the estimated budget.
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