SYSE.19:9 - Consequences

Source refresh becomes proportional. Decisions remain stable when their premises remain compatible, while one material claim can reopen a release even if the engineered System is unchanged. Historical sources and decisions remain inspectable, and automated discovery can reduce effort while the deciding Agent retains authority.

The cost is claim-level source identification and maintenance of actual reliance. When source content or applicability cannot be obtained, the Agent applying this pattern records a named blocker. Application DPFs may add source controls for domains such as regulated products, software supply chains, clinical devices, finance, or contracting.