{
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  "collection": "architecture",
  "href": "https://banes-lab.com/ontology#architecture-schema-drift",
  "id": "schema-drift",
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          "href": "https://banes-lab.com/ontology/lexicon#lexicon-define-contract",
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      "links": [
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          "href": "https://banes-lab.com/ontology/schema#vocabulary-severity-discouraged",
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          "label": "discouraged",
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          "href": "https://banes-lab.com/ontology#architecture-category-anti-patterns",
          "json": "https://banes-lab.com/json/records/architecture-category/anti-patterns",
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          "href": "https://banes-lab.com/ontology/schema#force-contract-compatibility",
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          "json": "https://banes-lab.com/json/records/force/model-governance",
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          "href": "https://banes-lab.com/ontology/schema#force-security-governance",
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          "json": "https://banes-lab.com/json/records/architecture/schema-contract",
          "label": "Schema Contract",
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        {
          "href": "https://banes-lab.com/ontology#architecture-canonical-schema",
          "json": "https://banes-lab.com/json/records/architecture/canonical-schema",
          "label": "Canonical Schema",
          "markdown": "https://banes-lab.com/records/architecture/canonical-schema.md",
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      "relation": "violates"
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      "links": [
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          "href": "https://banes-lab.com/ontology#architecture-data-contract",
          "json": "https://banes-lab.com/json/records/architecture/data-contract",
          "label": "Data Contract",
          "markdown": "https://banes-lab.com/records/architecture/data-contract.md",
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        {
          "href": "https://banes-lab.com/ontology#architecture-canonical-schema",
          "json": "https://banes-lab.com/json/records/architecture/canonical-schema",
          "label": "Canonical Schema",
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          "ref": "architecture:canonical-schema"
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      "relation": "negated-by"
    },
    {
      "links": [
        {
          "href": "https://banes-lab.com/software-architecture#a-system-is-a-graph",
          "json": "https://banes-lab.com/json/software-architecture/model/a-system-is-a-graph",
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          "ref": "chapter:/software-architecture#a-system-is-a-graph"
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        {
          "href": "https://banes-lab.com/software-architecture/decay#seven-controls-seven-classes",
          "json": "https://banes-lab.com/json/software-architecture/decay/seven-controls-seven-classes",
          "label": "Seven controls, seven classes",
          "markdown": "https://banes-lab.com/software-architecture/decay/seven-controls-seven-classes.md",
          "ref": "chapter:/software-architecture/decay#seven-controls-seven-classes"
        },
        {
          "href": "https://banes-lab.com/software-architecture/coverage#the-honest-gaps",
          "json": "https://banes-lab.com/json/software-architecture/coverage/the-honest-gaps",
          "label": "The honest gaps",
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          "ref": "chapter:/software-architecture/coverage#the-honest-gaps"
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        {
          "href": "https://banes-lab.com/ontology#architecture-category-anti-patterns",
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          "markdown": "https://banes-lab.com/ontology/principles/architecture-category-anti-patterns.md",
          "ref": "chapter:/ontology#architecture-category-anti-patterns"
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        {
          "href": "https://banes-lab.com/ontology#architecture-category-contracts-interfaces-compatibility",
          "json": "https://banes-lab.com/json/ontology/principles/architecture-category-contracts-interfaces-compatibility",
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          "ref": "chapter:/ontology#architecture-category-contracts-interfaces-compatibility"
        },
        {
          "href": "https://banes-lab.com/ontology#architecture-category-schema-canonical-data-semantics",
          "json": "https://banes-lab.com/json/ontology/principles/architecture-category-schema-canonical-data-semantics",
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          "href": "https://banes-lab.com/ontology/lexicon#lexicon-category-contracts-interfaces-compatibility",
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          "href": "https://banes-lab.com/ontology/lexicon#lexicon-category-schema-canonical-data-semantics",
          "json": "https://banes-lab.com/json/ontology/lexicon/lexicon-category-schema-canonical-data-semantics",
          "label": "Schema / Canonical Data / Semantics",
          "markdown": "https://banes-lab.com/ontology/lexicon/lexicon-category-schema-canonical-data-semantics.md",
          "ref": "chapter:/ontology/lexicon#lexicon-category-schema-canonical-data-semantics"
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          "ref": "chapter:/ontology/reasoning#the-failure-shapes"
        },
        {
          "href": "https://banes-lab.com/ontology/schema#the-vocabulary-severity",
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          "ref": "chapter:/ontology/schema#the-vocabulary-severity"
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          "href": "https://banes-lab.com/ontology/schema#the-forces",
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          "ref": "chapter:/ontology/schema#the-forces"
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      ],
      "relation": "linked-from"
    }
  ],
  "summary": "A defect in which the producers, consumers and stores of one payload evolve its shape independently until its meaning diverges.",
  "siblings": {
    "next": {
      "href": "https://banes-lab.com/ontology#architecture-implicit-contract",
      "json": "https://banes-lab.com/json/records/architecture/implicit-contract",
      "label": "Implicit Contract",
      "markdown": "https://banes-lab.com/records/architecture/implicit-contract.md",
      "ref": "architecture:implicit-contract"
    },
    "previous": {
      "href": "https://banes-lab.com/ontology#architecture-concrete-coupling",
      "json": "https://banes-lab.com/json/records/architecture/concrete-coupling",
      "label": "Concrete Coupling",
      "markdown": "https://banes-lab.com/records/architecture/concrete-coupling.md",
      "ref": "architecture:concrete-coupling"
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  },
  "up": {
    "href": null,
    "json": "https://banes-lab.com/json/api/records/architecture",
    "label": "Architecture principles",
    "markdown": "https://banes-lab.com/api/records/architecture.md",
    "ref": "api:records/architecture"
  },
  "aliases": [],
  "exemplar": {
    "after": "const FooSchema = schema({ id: fooIdSchema, name: nonEmptyString });\ntype Foo = Infer<typeof FooSchema>;\nfooApi.use(FooSchema);\nfooDb.use(FooSchema);",
    "before": "type FooApi = { id: string; label: string };\ntype FooDb = { id: string; name: string; extra: string };",
    "lang": "ts",
    "medium": "code"
  },
  "formedBy": "Allow producers, consumers, storage models, and documentation to evolve independently without versioned schema governance, then let payload meaning diverge over time.",
  "scope": [
    "contract_compatibility",
    "security_governance",
    "model_governance"
  ],
  "severity": "discouraged"
}