Level 4 Management and Measurement
In TMMi 4 organizations testing is a thoroughly defined, well-founded and measurable process. At maturity level 4,
the organization and projects establish quantitative objectives for product quality and process performance and use
them as criteria in managing them. Product quality and process performance is understood in statistical terms and
is managed throughout the lifecycle. Measures are incorporated into the organization’s measurement repository to
support fact-based decision making. Reviews and inspections are considered to be part of testing and used the
measure document quality. The static and dynamic test approaches are integrated into one. Reviews are formally
used as means to control quality gates. Products are evaluated using quantitative criteria for quality attributes such
as reliability, usability and maintainability. An organization wide test measurement program provides information
and visibility regarding the test process. Testing is perceived as evaluation; it consists of all lifecycle activities
concerned with checking products and related work products.
The process areas at TMMi level 4 are:
4.1 Test Measurement
4.2 Product Quality Evaluation
4.3 Advanced Peer Reviews