The same engine on a factory floor

Strip the IT vocabulary away and the verification engine is simple. Something describes what should happen. Systems record what did happen. Compare them, with evidence, and decide. IT service providers are the first market because their evidence already lives behind APIs and the founders know the work. But the engine does not know it is checking endpoints.

Manufacturing

Expected state comes from the work order, the SOP, the bill of materials and the quality plan: five process steps, one inspection, a temperature window, a specific material lot. Observed state comes from the MES, the QMS, the PLC and the inspection system. Four steps recorded out of five is a failed requirement with the missing step named. The job does not ship on someone's say-so.

Warehousing

Expected state is the pick list, the packing rule and the chain-of-custody requirement. Observed state is the scanner, the RFID reader and the dock record. Twenty-four items required, twenty-three scanned: the pallet waits, and the finding says which item.

Software delivery

Expected state is the definition of done and the release checklist. Observed state is the CI run, the security scan, the deployment record and the feature flag. "Released" is a claim; a green pipeline on the final commit is evidence.

What stays the same

The expected-state model, the evidence model, the four honest states, the rule that nothing closes without a passing rerun, and the tenant isolation and audit trail underneath. What changes per industry is a pack: connectors, terminology, controls and templates. That is a much smaller thing to build than a new product, and it is built with people who know that floor, not by the people who know this one.