Metrics can be collected during and at the end of test activities. It is used to analyze
- Progress against the planned schedule and budget
- The current quality of the test object
- Adequacy of the test approach
- Effectiveness of the test activities with respect to the objectives
Common test metrics include:
- Percentage of planned work done in test case preparation (or percentage of planned test cases implemented)
- Percentage of planned work done in test environment preparation Test case execution (e.g., number of test cases run/not run, test cases passed/failed, and/or test conditions passed/failed) Defect information (e.g., defect density, defects found and fixed, failure rate, and confirmation test results)
- Test coverage of requirements, user stories, acceptance criteria, risks, or code
- Task completion, resource allocation and usage, and effort Cost of testing, including the cost compared to the benefit of finding the next defect or the cost compared to the benefit of running the next test