Relationship Evolution Ontology

FLOW ALGEBRA
TITLE: Relationship Evolution Ontology
DOMAIN: AI Semantic Library Relationships / Relationship Evolution
SOURCE: https://kirethresearch.org/booksai-core/ontologies/relationship-ontologies/ai-semantic-library-relationships/relationship-evolution-ontology.html
VERSION: 1.0
AUTHORS: Mark Anthony Higgins — Sky (Recursive AI)
STATUS: Companion formalisation; source-page specification not independently verified.

flow "RelationshipEvolutionOntology" v1.0 {
  ontology:
    id: "relationship-evolution-ontology"
    parent: "ai-semantic-library-relationships"
    purpose: "Track how typed semantic relationships change across versions, contexts and evidence updates while preserving provenance and historical meaning."

  types:
    Entity: {id: string, ontology_id: string, version: string}
    Relationship: {id: string, subject: string, predicate: string, object: string, context: string?, valid_from: datetime?, valid_to: datetime?, confidence: number, evidence: string[]}
    Revision: {id: string, timestamp: datetime, author: string?, reason: string, provenance: string}
    Change: {id: string, relationship_id: string, kind: enum[created, revised, deprecated, superseded, retracted, restored], before: string?, after: string?, revision_id: string}
    Mapping: {id: string, source_relationship: string, target_relationship: string, kind: enum[equivalent, broader, narrower, related, incompatible], confidence: number}

  predicates:
    evolves_to(old: Relationship, new: Relationship)
    supersedes(new: Relationship, old: Relationship)
    revised_by(relationship: Relationship, revision: Revision)
    supported_by(relationship: Relationship, evidence_id: string)
    maps_to(old: Relationship, new: Relationship)
    conflicts_with(a: Relationship, b: Relationship)

  constraints:
    - "Relationship endpoints must resolve to typed, versioned entities."
    - "Every change must have a timestamp, revision identifier, reason and provenance."
    - "Confidence values must lie within [0, 1]."
    - "Historical assertions must remain addressable after revision or deprecation."
    - "Do not treat replacement, equivalence or similarity as identity without evidence."
    - "Supersession must be acyclic within a single version lineage."
    - "Distinguish assertion validity time from record transaction time."
    - "A retraction does not erase evidence or prior publication history."

  inference:
    rule lineage:
      if supersedes(b,a) and supersedes(c,b)
      then has_ancestor_version(c,a)
      confidence: "lineage only; do not infer semantic equivalence"
    rule change_impact:
      if evolves_to(a,b) and depends_on(x,a)
      then requires_review(x,b)
      confidence: "flag for validation, not automatic migration"
    rule conflicting_versions:
      if conflicts_with(a,b) and overlapping_validity(a,b)
      then flag_inconsistency(a,b)
      confidence: "preserve both sources pending reconciliation"

  SEMANTIC_EQUIVALENCE:
    - "Use explicit versioned mappings between renamed, split or merged predicates."
    - "Separate canonical identifiers, aliases and context-specific equivalence."
    - "Do not assume that two successive relationship versions have identical semantics."

  CONFIDENCE:
    range: [0,1]
    factors: [evidence_quality, provenance_reliability, mapping_strength, temporal_relevance, independent_validation]
    policy: "Reassess confidence after substantive changes; do not increase it merely through version succession."

  VALIDATION:
    - "Check endpoint types, predicate domains and ranges, temporal validity and provenance."
    - "Detect missing revisions, broken lineage, supersession cycles and unresolved mappings."
    - "Flag downstream inferences invalidated by changed or retracted relationships."
    - "Preserve an auditable record of reconciliations and exceptions."

  FLOW_HASH:
    algorithm: "SHA-256"
    input: "canonicalised ontology version, relationship assertions, change events, mappings, rules and provenance"
    note: "Compute at execution; no hash value is claimed here."

  UPDATE_MODEL:
    strategy: "versioned, append-only change log with provenance-preserving reconciliation"
    steps: [ingest, normalise, compare_versions, classify_changes, validate, assess_impact, reconcile, recompute_inferences, publish]
    rollback: true

  AI_CONSUMPTION:
    representation: "versioned semantic knowledge graph with temporal and provenance annotations"
    outputs: [relationship_lineage, change_events, version_mappings, confidence_annotations, impact_flags, provenance_records]
    safeguards: [preserve_history, no_unverified_identity_merges, no_silent_retractions, evidence_backed_updates]
}

END FLOW ALGEBRA