Software conformance assessment
Conformance asks whether an implementation satisfies a defined requirement, specification or control statement under stated conditions. DDCAL keeps that claim separate from broader notions of correctness or fitness for every deployment.
Transition assurance
Many important software failures occur not because an artifact is internally malformed, but because a valid-looking artifact is applied to the wrong predecessor, with the wrong authority, to the wrong environment, or is accepted using evidence produced by the same failure path.
DDC transition assurance therefore traces the originating work or requirement through explicit authority, exact predecessor state, proposed transition, affected dimensions and resources, observed execution, independent postcondition verification, invariant preservation, evidence lineage and explicit acceptance or recovery.
Common failure patterns
- Successful execution being treated as proof of correct completion.
- Retries being treated as recovery without proving state restoration.
- Verification sharing the producer's critical assumptions or dependencies.
- Mutable dependencies or deployment inputs weakening reproducibility.
- Rollback existing operationally but lacking an independently verified acceptance condition.
- Scope expansion from a component result to a whole-system claim.
Controlled results
DDCAL uses bounded result language: PASS, FAIL, INVALID, INCONCLUSIVE and NOT ASSESSED. Adverse observations are retained rather than discarded simply because a test cell was invalid or an expected path could not be completed.