Open Property Data Association
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    UFO meta-category

    Event

    4 classes classified under the UFO foundational meta-category Event — from the inert opda:ufoCategory facet (an annotation-graph-only documentary annotation; UFO-informed, not UFO-grounded). The classification doctrine keeps kinds as facets, not subclass trees (ODR-0027).

    Classes · 4

    ClassDefinition (rdfs:comment)
    opda:LeaseExtensionEvent Reified PROV-O activity recording a statutory lease extension (LRHUDA 1993 in England & Wales). Mutates the LeaseTerm of an existing leasehold LegalEstate (ODR-0005 §3b Rule 1 — LegalEstate identity PERSISTS through extension; rights-bundle is modified, not dissolved) and updates the RegisteredTitle's registry record. The same node may co-type as opda:Transaction (S007 Q1 Transaction-as-Relator); the dual typing reflects the property-lifecycle vs relator perspectives on the same event.
    opda:Milestone Transaction lifecycle milestone. UFO Event particular; PROV-O Activity. Hybrid PROV-O typing per S007 Q2: instant milestones (instruction, offerAccepted, exchange) carry prov:atTime; interval milestones (completion-process, registration-process) carry prov:startedAtTime + prov:endedAtTime per Moreau W3C-grade discipline. Each Milestone Activity may pair with a prov:Plan carrying opda:plannedAtTime for expected-vs-actual variance (S007 Q6 Plan-vs-Activity reification).
    opda:NameChangeEvent Reified PROV-O activity recording a Person's name change (deed-poll, marriage, gender recognition, etc.). The Person's identity PERSISTS through the name change per S006 Q1 — one Person individual with a name-attribute provenance chain via prov:wasRevisionOf, NOT two distinct Persons. Anti-pattern: owl:sameAs across the former/current names (cross-context inference propagation).
    opda:VerificationActivity Verification activity recording the production of a verified claim from evidence. PROV-O Activity. The OIDC4IDA single 'time' is the completion instant → prov:endedAtTime. Uses qualified form prov:qualifiedAttribution → prov:Attribution with prov:hadRole so validation_method / verification_method are not discarded.

    All classes by module: Classes; the UFO meta-category legend: Foundations; the classification doctrine: Identity & classification. Full index: Index & glossary.