Requirement Traceability Matrix is a document that maps and traces user requirement with test cases to ensure that for each and every requirement adequate level of testing is being achieved. It captures all requirements proposed by the client and requirement traceability in a single document.
The process to review all the test cases that are defined for any requirement is called Traceability. Requirement Traceability Matrix is the means to map and trace all of the client's requirements with the test cases and discovered defects. It is a single document that serves the main purpose that no test cases are missed and thus every functionality of the application is covered and tested.
A Requirements Traceability Matrix is usually in tabular format as it holds multiple relationships between requirements and test cases.
How To Create A Requirements Traceability Matrix--
To being with we need to know exactly what is it that needs to be tracked or traced.
Testers start writing their test scenarios/objectives and eventually the test cases based on some input documents – Business requirements document, Functional requirement document and Technical Design document (optional). Then according to the requirement, we trace our test cases.
Here is how a simple Traceability Matrix would look for our example:
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