What is a trace matrix and how do you use it?

The traceability matrix is a tool that links requirements, test cases, and test results, ensuring traceability between them. It helps to ensure that all requirements are covered by tests and that changes in requirements are reflected in the tests.

I use the traceability matrix for:

• Verifying the completeness of test coverage of requirements.
• Tracking the testing status for each requirement.
• Simplifying the analysis of the impact of requirement changes on tests.

An example of a simple matrix:

Requirement ID	Requirement Description	Test Case ID	Test Status
REQ-001	User can log in	TC-001	Passed
REQ-002	Sending feedback form	TC-002	Not passed