Functional Testing Demo Traceability

TABLE 2.4 · WORKED EXAMPLE

How is Req 2 coverage calculated?

Follow the traceability links, identify the passed test, and add the priority weights.

Test-to-requirement traceability

All six tests have been executed.

Test	Priority	Result	Req 1	Req 2	Req 3
Test 1	2	Pass	×
Test 2	5	Pass	×		×
Test 3	1	Fail		×	×
Test 4	1	Pass		×
Test 5	4	Fail		×
Test 6	2	Fail			×

× means the test is associated with the requirement.

Priority is used as a weight: 1 = minor risk; 5 = critical risk. This example measures coverage using passed tests, as defined in the text.