Library / First Principles Framework (FPF) - Core Conceptual Specification
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Source changed 2026-10-03 05:29:54 UTC · snapshot created 2026-10-03 05:30:57 UTC · last check 2026-10-03 07:15:14 UTC

A.10.1:5.1 - Show: Sensor-Calibration Range in an Actual Engineering Host

A pump-controller project used edition E2 of a sensor-calibration MethodDescription. E2 states that temperature compensation for module TS-2 is valid from -20 °C to 50 °C. E3 narrows ordinary validity to -10 °C through 50 °C and requires a new calibration Method and evidence below that range.

The search frame is the named pump-controller project, TS-2 configurations, current service-release interval, and the model, test, safety, interface-architecture, and decision stores used for that release question. Other hardware configurations are excluded when they do not use TS-2 under the changed condition.

The source-outward route follows exact E2 references and established traces. The receiver-oriented route scans the included stores for the old temperature range and equivalent cold-start premises. Inspection finds:

  • the thermal-model parameter bound depends;
  • the cold-start test condition depends;
  • the safety claim’s use of evidence produced under that condition depends, and its action-changing reach continues to the service-release premise; and
  • the interface description’s bibliography entry mentions only.

The affected reach stops at the last service-release action that can change. A practitioner or admitted System applies SYSE.19 to the discovery-and-reach statement. The independently governed engineering revalidation result records evidence that supports units S006–S008 under the tested conditions and leaves S009–S010 without the needed calibration evidence. That result goes directly to SYSE.14, where the authorized release decision remains. The release coordinator also needs one overview across the unit groups. That common account cites the engineering result, preserves the bibliography-only use and unaffected configurations, and summarizes the affected release branches. The engineering result could otherwise finish its direct receiving use without a second account.