A measurement can be reliable without warranting every interpretation. A model can calculate successfully without supporting every claim about the world. The method therefore separates three questions that are often run together in scientific debate.
1What requirements does the claim need?
Before judging a result, it must be clear what the claim is physically about, how formal quantities connect to regime-local evidence, which variations preserve the claim, where verdict-relevant steps come from, what carries the asserted physical significance, and which choices shape the result.
Show the six canonical conditions
A1 · AddressabilityIs the claim stably anchored to a physically identified target?
A2 · Interface ControlIs the access route between formal description and regime-local reference declared?
A3 · StabilityDoes the claim's content remain invariant under admissible, claim-preserving variations?
A4 · TraceabilityCan the inferential route from inputs to outputs be located and audited?
A5 · Carrier AdequacyDo the declared formal, evidential, and methodological commitments carry the asserted physical significance?
A6 · Constraint DisclosureAre model choices, selection rules, comparators, and other outcome-relevant constraints explicit and tracked?
2What warrants the transition?
Arguments move among three roles: applicability conditions, theory/model, and observation/application. These roles are not a temporal ladder. An inference can move in different directions among them, and each directed transition can owe additional warrant.
Applicability conditions↔Theory & model↔Observation & application
Technically, P2 distinguishes nine ordered routes among these three roles. The full route table is available below.
3What follows for the concrete claim?
P3 freezes the exact claim wording and the contemporaneous evidence state. It then tests the activated requirements for that claim token. The result applies only to that concrete claim and that time-indexed record.
PASSOPENLoss of Applicability · LoA
PASS does not mean true, and OPEN does not mean false. Loss of Applicability requires a positive condition; it cannot be inferred from mere lack of a repair idea.
Technically, P3 distinguishes two routes: LoA-T for an essential illicit role transition inherited from P2, and LoA-K for positively certified impossibility of claim-preserving closure.