100% traceable test coverage: myth or reality
In AI SDLC, coverage is measured by traceability, not by lines of code. Every test is linked to requirements, use cases and implementation.
Line coverage can look good and still miss the most important business scenarios. AI SDLC measures coverage differently: by links between requirements, use cases, code, tests and defects.
Why line coverage is not enough
A test can execute many lines and still fail to prove that the system does what the business needs. Real quality starts from the requirement and follows the chain to the test.
Tests come from three sources
- Requirements create functional tests
- Architecture creates integration tests
- Code creates unit tests
Why tests do not go stale
When requirements or code change, linked tests can be updated with the model. The team sees what is covered, what changed and where gaps remain.
Traceable coverage gives clear quality evidence: what requirement is tested, by which test, and what defect it protects against.
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