@prefix rdf: . @prefix rdfs: . @prefix xsd: . @prefix owl: . @prefix dcterms: . @prefix skos: . @prefix gufo: . @prefix uco-core: . @prefix uco-action: . @prefix uco-observable: . @prefix uco-role: . @prefix case-investigation: . @prefix cac-core: . # ============================================================================= # Ontology Declaration # ============================================================================= rdf:type owl:Ontology ; rdfs:label "CAC Ontology Semantic Spine"@en ; rdfs:comment "The semantic spine is the stable, top-level CAC-facing class hierarchy that all CAC Ontology modules should anchor to. It is organized by ontological kind rather than by stakeholder workflow or module-local convenience. Every class in the CAC family should have one clear ontological home, one clear identity story, and one intended modeling pattern."@en ; owl:versionIRI ; owl:versionInfo "3.0.0" ; dcterms:creator "CAC Ontology Team" ; dcterms:issued "2026-03-16"^^xsd:date ; dcterms:modified "2026-03-16"^^xsd:date ; owl:imports , , , , , . # ============================================================================= # TOP-LEVEL ENTITY # ============================================================================= cac-core:Entity a owl:Class ; rdfs:label "Entity"@en ; rdfs:comment "The most general class in the CAC semantic spine. All CAC domain concepts should anchor to one of its subclasses."@en ; skos:scopeNote "Do not instantiate cac-core:Entity directly. Use the appropriate subclass: EnduringEntity, Occurrent, Situation, Role, or Phase."@en . # ============================================================================= # ENDURING ENTITY BRANCH # ============================================================================= cac-core:EnduringEntity a owl:Class ; rdfs:label "Enduring Entity"@en ; rdfs:comment "A thing that persists through time while potentially changing state. This is the CAC-facing root for all object-like entities including people, organizations, devices, artifacts, places, and assessment results."@en ; rdfs:subClassOf cac-core:Entity , gufo:Object , uco-core:UcoObject ; skos:scopeNote "Use when: the thing has a persistent identity across time. Do not use when: the concept is an event, situation, role, or phase."@en . cac-core:PersonLikeEntity a owl:Class ; rdfs:label "Person-Like Entity"@en ; rdfs:comment "An enduring entity that is person-like in the domain model. Use for natural persons and person-profile abstractions."@en ; rdfs:subClassOf cac-core:EnduringEntity ; skos:scopeNote "Use when: modeling a natural person or person-level abstraction. Do not use when: the concept is a temporary capacity such as victim, offender, or advocate — those belong under cac-core:Role."@en . cac-core:OrganizationLikeEntity a owl:Class ; rdfs:label "Organization-Like Entity"@en ; rdfs:comment "An enduring entity that represents an organization, institution, team, agency, or other collectively organized actor."@en ; rdfs:subClassOf cac-core:EnduringEntity ; skos:scopeNote "Use when: modeling NGOs, task forces, police departments, courts, companies, or platforms treated as organizations. Do not use when: modeling individual persons or system-level software resources."@en . cac-core:DigitalSystemEntity a owl:Class ; rdfs:label "Digital System Entity"@en ; rdfs:comment "An enduring entity representing a software or system-level resource such as an online service platform, moderation system, or digital environment."@en ; rdfs:subClassOf cac-core:EnduringEntity ; skos:scopeNote "Use when: modeling platforms, moderation systems, application services, or digital environments as system-level entities. Do not use when: more specific UCO observable, device, or software classes are already the right fit."@en . cac-core:Artifact a owl:Class ; rdfs:label "Artifact"@en ; rdfs:comment "An enduring entity that is inspectable, storable, transferable, or evidentiary. Aligned to UCO ObservableObject for digital evidence interoperability."@en ; rdfs:subClassOf cac-core:EnduringEntity , uco-observable:ObservableObject ; skos:scopeNote "Use when: modeling files, images, videos, reports, transcripts, cybertip messages, account exports, or other storable evidence. Do not use when: the concept is an assessment outcome — use cac-core:AssessmentResult instead."@en . cac-core:PlaceLikeEntity a owl:Class ; rdfs:label "Place-Like Entity"@en ; rdfs:comment "An enduring entity used to represent places, venues, virtual environments treated as locatable contexts, or place-like reference points."@en ; rdfs:subClassOf cac-core:EnduringEntity ; skos:scopeNote "Use when: modeling physical locations, jurisdictions, virtual environments, or other place-like reference points."@en . cac-core:AssessmentResult a owl:Class ; rdfs:label "Assessment Result"@en ; rdfs:comment "An output or conclusion of some evaluative, analytic, classification, or decision-making process. Intentionally not subclassed from uco-observable:ObservableObject because the semantic identity of a result is the assessment outcome, not the artifact that stores it."@en ; rdfs:subClassOf cac-core:EnduringEntity ; skos:scopeNote "Use when: the concept is the result of assessing something — a classification, risk score, age estimate, moderation decision, or authenticity determination. Do not use when: the concept is the artifact that stores the result — use cac-core:Artifact for that."@en . # ============================================================================= # OCCURRENT / EVENT BRANCH # ============================================================================= cac-core:Occurrent a owl:Class ; rdfs:label "Occurrent"@en ; rdfs:comment "A CAC organizing superclass for things that happen or unfold in time. This is a CAC-layer abstraction not directly mapped to a gUFO superclass in the base spine."@en ; rdfs:subClassOf cac-core:Entity ; skos:scopeNote "Do not instantiate directly. Use cac-core:Event or one of its subclasses."@en . cac-core:Event a owl:Class ; rdfs:label "Event"@en ; rdfs:comment "Something that happens or unfolds in time — an action, interaction, incident, hearing, or process step."@en ; rdfs:subClassOf cac-core:Occurrent , gufo:Event ; skos:scopeNote "Use when: something occurred, has a start/end time, or involves participants, inputs, outputs, or instruments. Do not use when: the concept is a persisting context or condition — use cac-core:Situation instead."@en . cac-core:ExploitationEvent a owl:Class ; rdfs:label "Exploitation Event"@en ; rdfs:comment "An event representing an act of exploitation, abuse, or victimization of a child."@en ; rdfs:subClassOf cac-core:Event ; skos:scopeNote "Use when: modeling grooming interactions, abuse incidents, trafficking transfer events, or other exploitation occurrences."@en . cac-core:DetectionEvent a owl:Class ; rdfs:label "Detection Event"@en ; rdfs:comment "An event representing the detection, identification, or flagging of content, behavior, or indicators relevant to child exploitation."@en ; rdfs:subClassOf cac-core:Event ; skos:scopeNote "Use when: modeling content detection, hash matching, AI-based flagging, or behavioral indicator identification."@en . cac-core:CoordinationEvent a owl:Class ; rdfs:label "Coordination Event"@en ; rdfs:comment "An event representing coordination, information sharing, or collaborative activity among stakeholders."@en ; rdfs:subClassOf cac-core:Event ; skos:scopeNote "Use when: modeling information sharing events, inter-agency coordination activities, or collaborative referrals. Do not use when: the event is specifically an investigative action — use cac-core:InvestigativeAction instead."@en . cac-core:SupportEvent a owl:Class ; rdfs:label "Support Event"@en ; rdfs:comment "An event representing victim support, advocacy, training, or welfare-related activity."@en ; rdfs:subClassOf cac-core:Event ; skos:scopeNote "Use when: modeling victim referral events, training sessions, advocacy activities, or support interventions."@en . cac-core:LegalEvent a owl:Class ; rdfs:label "Legal Event"@en ; rdfs:comment "An event representing a legal proceeding, judicial action, sentencing hearing, or other court-related occurrence."@en ; rdfs:subClassOf cac-core:Event ; skos:scopeNote "Use when: modeling judicial hearings, sentencing events, arraignments, or other legal proceedings."@en . cac-core:InvestigativeAction a owl:Class ; rdfs:label "Investigative Action"@en ; rdfs:comment "An event that is specifically an investigative action within a CAC investigation. Aligned to both CASE InvestigativeAction and UCO Action for investigation interoperability."@en ; rdfs:subClassOf cac-core:Event , case-investigation:InvestigativeAction , uco-action:Action ; skos:scopeNote "Use when: the event is a discrete investigative step such as evidence review, cybertip receipt, search warrant execution, or forensic examination. Do not use when: the event is broader coordination, support, or legal activity not specific to investigation workflow."@en . # ============================================================================= # SITUATION BRANCH # ============================================================================= cac-core:Situation a owl:Class ; rdfs:label "Situation"@en ; rdfs:comment "A context, state, or configuration that holds at a time and may involve multiple participants. Aligned to gUFO Situation."@en ; rdfs:subClassOf cac-core:Entity , gufo:Situation ; skos:scopeNote "Use when: the concept is a state rather than an occurrence, holds over some interval, and contextualizes participants or events. Do not use when: the concept is something that happens — use cac-core:Event instead."@en . # ============================================================================= # ROLE BRANCH # ============================================================================= cac-core:Role a owl:Class ; rdfs:label "Role"@en ; rdfs:comment "A non-rigid role borne by an enduring entity in a certain relational or contextual setting. A bearer can gain or lose a role without ceasing to exist. Aligned to both gUFO Role and UCO Role."@en ; rdfs:subClassOf cac-core:Entity , gufo:Role , uco-role:Role ; skos:scopeNote "Use when: the concept is a context-dependent function or capacity such as victim, offender, guardian, moderator, examiner, or advocate. Do not use when: the concept is a person — use cac-core:PersonLikeEntity for the bearer."@en . # ============================================================================= # PHASE BRANCH # ============================================================================= cac-core:Phase a owl:Class ; rdfs:label "Phase"@en ; rdfs:comment "A temporal stage of some enduring entity, process, or situation. The bearer remains the same entity while changing phase. Aligned to gUFO Phase."@en ; rdfs:subClassOf cac-core:Entity , gufo:Phase ; skos:scopeNote "Use when: the concept is a lifecycle stage such as grooming phase, escalation phase, active investigation phase, or recovery phase. Do not use when: the concept is an investigation — phases participate in investigations but are not investigations themselves."@en . # ============================================================================= # CORE OBJECT PROPERTIES # ============================================================================= cac-core:hasPhase a owl:ObjectProperty ; rdfs:label "has phase"@en ; rdfs:comment "Links an enduring entity, process, or situation to one of its temporal phases."@en ; rdfs:range cac-core:Phase . cac-core:isPhaseOf a owl:ObjectProperty ; rdfs:label "is phase of"@en ; rdfs:comment "Links a phase to the entity, process, or situation it is a temporal stage of."@en ; rdfs:domain cac-core:Phase ; owl:inverseOf cac-core:hasPhase . cac-core:assesses a owl:ObjectProperty ; rdfs:label "assesses"@en ; rdfs:comment "Links an assessment result to the entity it evaluates."@en ; rdfs:domain cac-core:AssessmentResult . cac-core:generatedBy a owl:ObjectProperty ; rdfs:label "generated by"@en ; rdfs:comment "Links an assessment result to the event, action, tool, or process that produced it."@en ; rdfs:domain cac-core:AssessmentResult . cac-core:usesMethod a owl:ObjectProperty ; rdfs:label "uses method"@en ; rdfs:comment "Links an assessment result or event to the method, algorithm, or technique used."@en . cac-core:hasConfidence a owl:DatatypeProperty ; rdfs:label "has confidence"@en ; rdfs:comment "A numeric confidence value associated with an assessment result, typically between 0 and 1."@en ; rdfs:domain cac-core:AssessmentResult ; rdfs:range xsd:decimal . cac-core:issuedAtTime a owl:DatatypeProperty ; rdfs:label "issued at time"@en ; rdfs:comment "The date-time at which an assessment result was issued or finalized."@en ; rdfs:domain cac-core:AssessmentResult ; rdfs:range xsd:dateTimeStamp .