{
  "schemaVersion": "1.0",
  "exampleOnly": true,
  "updated": "2026-09-20",
  "canonicalUrl": "https://www.iamgeorgekelly.com/field-guide/product-compatibility-evidence",
  "scope": "An editorial evidence ledger for exact product pairs. The examples are fictional; no automatic compatibility or installation assessment is performed.",
  "decisionVocabulary": {
    "supported": "The supplied evidence explicitly supports this pair under all recorded conditions.",
    "contradicted": "The supplied evidence explicitly excludes this pair or required condition.",
    "unknown": "The evidence does not resolve this exact pair. Absence is not a negative compatibility finding."
  },
  "evidence": [
    {
      "id": "EXAMPLE-MANUAL-1",
      "fictional": true,
      "revision": "2026-09-A",
      "location": "Accessory table, row 4",
      "statement": "Tray A is specified for Stand 01 revision B without an adapter. Revision C is excluded. Revision D is not discussed."
    }
  ],
  "cases": [
    {
      "id": "exact-pair",
      "accessoryId": "EXAMPLE-TRAY-A",
      "targetId": "EXAMPLE-STAND-01",
      "targetRevision": "B",
      "requiredAdapter": null,
      "adapterRequirementKnown": true,
      "evidenceIds": [
        "EXAMPLE-MANUAL-1"
      ],
      "decision": "supported",
      "reason": "The exact revision and adapter condition appear in the fictional evidence."
    },
    {
      "id": "excluded-revision",
      "accessoryId": "EXAMPLE-TRAY-A",
      "targetId": "EXAMPLE-STAND-01",
      "targetRevision": "C",
      "requiredAdapter": null,
      "adapterRequirementKnown": false,
      "evidenceIds": [
        "EXAMPLE-MANUAL-1"
      ],
      "decision": "contradicted",
      "reason": "The fictional evidence explicitly excludes revision C."
    },
    {
      "id": "unlisted-revision",
      "accessoryId": "EXAMPLE-TRAY-A",
      "targetId": "EXAMPLE-STAND-01",
      "targetRevision": "D",
      "requiredAdapter": null,
      "adapterRequirementKnown": false,
      "evidenceIds": [
        "EXAMPLE-MANUAL-1"
      ],
      "decision": "unknown",
      "reason": "The document says nothing about revision D; do not extend a revision B statement."
    }
  ],
  "blankRecord": {
    "accessoryId": null,
    "targetId": null,
    "targetRevision": null,
    "region": null,
    "requiredAdapter": null,
    "adapterRequirementKnown": false,
    "evidenceIds": [],
    "evidenceLocation": null,
    "sourceRevision": null,
    "checkedAt": null,
    "decision": "unknown",
    "reason": null
  },
  "reviewSteps": [
    "Identify both exact products and revisions.",
    "Find an authoritative statement for the pair and capture its exact location.",
    "Resolve adapters, exclusions, regional differences, and source conflicts.",
    "Record supported, contradicted, or unknown with the evidence.",
    "Recheck the source before publishing a compatibility claim."
  ],
  "sources": [
    {
      "url": "https://schema.org/isAccessoryOrSparePartFor",
      "checked": "2026-09-20",
      "scope": "Relationship vocabulary only; not a verification mechanism."
    },
    {
      "url": "https://schema.org/isRelatedTo",
      "checked": "2026-09-20",
      "scope": "Generic relatedness must not be substituted for evidence of compatibility."
    }
  ]
}