If you do that, then the generic goals of the continuous representation
Understanding Maturity Level 4: Quantitatively Managed n 115
have been added to ensure that the basic concepts of statistical control and application
will be met.
This process area covers both project-level and organization-level activities.
Selecting processes to measure and selecting appropriate measures themselves can
be iterative to meet changing business needs. Establishing quality and process
objectives can be iterative as well, based on fixing special causes of variation.
An example of the importance of not mixing ???apples and oranges??? in this process
area follows. Suppose you are collecting peer review data. You collect defect
data resulting from peer reviews. You may collect the number of defects found and
the type of defect (code, requirement, design, etc.). Be sure to analyze that data
appropriately. For example, if one review of code produces 17 defects that may not
sound like much, while another review of another program results in 25 defects,
which is obviously more than from the first product reviewed.
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