What is Traceability?
The significance of traceability within a requirement tool or a test management tool (like HP Quality Center) enables links between requirements and tests. This notifies what needs to be changed when a requirement changes.
Requirements management tools also enable requirement coverage metrics to be calculated easily as traceability enables test cases to be mapped to requirement.
Significance of Traceability:
To Identify the apt version of test cases to be used.
To identify which test cases can be reused or need to be updated.
To assist the debugging process so that a defects found when executing tests can be tracked back to the corresponding version of requirement.