Compatibility methodology

The database separates confirmed relationships from candidates and explicit conflicts.

Status definitions

VERIFIED

Explicit source-backed relationship within the stated scope.

LIKELY

Identifiers or measurements align, but explicit authoritative fit is incomplete.

UNVERIFIED

Candidate or component-presence evidence only; not a confirmed replacement fit.

DOES_NOT_FIT

Explicit conflict, exclusion, wrong position, wrong revision, or non-fit evidence.

Evidence rules

• Exact manufacturer or authorized relationships are preferred.
• Dimensions and appearance never create VERIFIED fit by themselves.
• Position, generation, production window and revision constraints stay visible.
• Explicit non-fit evidence is preserved even when a positive result exists for another position or generation.
• Unknown fields remain unknown instead of being guessed.

Source durability

Records carry a verification date and may display source-access or conflict-audit notes when later reviews found stale or ambiguous evidence.