Stage 4 proves the lab: a test matrix where every planted bug has a test that passes on the clean design and fails on the injected bug, a signoff manifest generated from the stage artefacts and compared with the signed record, a waiver-ageing rule that fails stale forgiveness, and one final script that reruns every stage check and prints PASS only when all agree. The readiness review then says what is still open for silicon, including the known security hole.
Lesson | After it you can... |
|---|---|
Write the bug-to-test matrix with no empty cell. | |
Assemble the manifest and age every waiver. | |
Run the one script that prints the manifest PASS. |
Suggested order: top to bottom. The matrix first, because the manifest references its rows; the manifest second, because the final check consumes it; the final check last, because it reruns everything. No waiver in this stage may be older than its evidence.
Passing tests prove the design against the tests; the manifest must also prove the tests against the requirements, the waivers against their evidence, and the artefacts against each other.