Find the structure your AI needs.
A live registry of versioned meta-model specifications and clearly labelled research profiles. Search by family, category, industry, domain, name or tags; storage formats and interfaces remain independent.
3D Asset / Scene
Describe one identified 3D media asset or authored scene, its spatial content, dependencies, interpretation profile and evidence for permitted use.
3D Scene / Environment
Describe and govern one versioned spatial scene and its object graph, dependencies, intended presentation and behavior bindings.
Access Audit
Provide host-attached, integrity-aware evidence of observed access activity and grant changes, with explicit coverage and disclosure limits.
Access Breach / Enforcement
Attach evidence-qualified access violation, enforcement and redress records to a host without taking over its identity or authority.
Access Contract / Consent
Provide a format-neutral, machine-readable instrument of permission to read: which party permits which reader to read which slice of data, for which declared purpose, under which …
Act
Describe one action as an occurrence specialization with qualified agency, purpose, means, execution assessment and accountability evidence.
Administrative Area
Represent a governed administrative or official statistical territorial unit with stable identity, versioned codes and names, authority, hierarchy, direct boundary geometry and li…
Administrative Procedure / Case
Describe one public-law administrative case with stable identity, procedural evidence and qualified outcome references.
Advertisement / Promotion
Represent a governed promotional-instrument specification family with discriminated advertisement and sales-promotion profiles so agents can understand claims, evidence, disclosur…
Agent Skill / Instruction
Represent a governed, versioned and portable reusable instruction package that tells an AI agent when and how to perform a bounded capability, with explicit contracts, resources, …
Agriculture Operation
Describe a bounded dossier of managed agricultural activity, its production context, interventions, observations and output evidence.
AI Agent
Describe an AI agent as a governed, identifiable non-human actor that holds delegated authority, is bound to tools and memory, operates under policy and oversight, and can be insp…
AI Incident Report
Represent one governed, versioned AI incident reporting case that makes facts, timeline, affected systems, classification, impact, causal assessments, response, obligations, submi…
AI Inference / Agent Run
Provide the format-neutral context structure an AI agent needs to open, execute, observe, close, audit, cost and retain a single AI inference or agent run, so that what was asked,…
AI Model Evaluation
Provide the format-neutral context an agent needs to plan, execute, record, interpret, approve and disclose an evaluation of a specified AI model or system version, and to retain …
AI Model Registry Entry
Represent one governed, discoverable registry record that binds an AI model family or version to artifacts, technical metadata, lineage, rights, evaluations, approvals, lifecycle …
AI Safety / Governance Assessment
Provide the format-neutral context an agent needs to create, inspect and operate a governance or safety assessment record for a specific AI system: what was assessed, under which …
AI Software Meta-Model
Connected software context for AI agents and software delivery.
AI System
Describe a governed AI-enabled system as a unit of accountability that is larger than any single model artifact: its identity, declared purpose, composition, classification, lifec…
Air Quality
Ambient air pollutant concentrations at a place and time, assessed against limit values.
Airspace
Defined volumes of airspace with limits, classification and access rules.
Alias / Same-as Mapping
Provide a format-neutral mixin for federated identity equivalence: identified, versioned assertions that two externally owned references denote the same subject, carrying issuing …
API / Interface Contract
Describe a versioned logical interface with immutable revisions, consumer pins, compatibility evidence and endpoint bindings.
Application / Request Record
Provide the format-neutral context an agent needs to understand, create, inspect and operate a record of a request submitted by a party to a responsible body, from intent-to-submi…
Appointment / Reservation Event
Represent a proposed, held or confirmed allocation of time, capacity, service, place or resource among participants without owning availability, actual encounter, service order or…
Archival Fonds / Collection
Describe one archival aggregation through formation, accession, arrangement, description, preservation context and qualified access.
Assembly Instance / As-built BOM
One serialized assembly with the record of exactly which components went into it.
Assessment / Evaluation
Give an agent the context needed to understand, create, inspect and operate an assessment or evaluation record: what was assessed, against which criteria at which version, by whic…
Asset Lifecycle Record
Provide a governed, evidence-linked lifecycle projection for one physical item without creating another asset master.
Assumption
Represent one governed premise accepted provisionally for a stated purpose, scope and reasoning context without asserting that it is a verified fact.
Astronomical Observation
Describe one archive-scoped astronomical observation record, its acquisition evidence, independently identified products and their provenance.
Attestation / Credential
Represent issuer-asserted claims with durable identity, evidence, validity, status, securing and purpose-bound presentation while remaining independent of storage and interface fo…
Audio / Video Recording
Describe an identified fixed recording, its version-scoped tracks and timeline, origin evidence and controlled use across separately mastered renditions.
Audit / Assurance Engagement
Represent a governed professional engagement and its evidence-to-conclusion chain so agents can manage terms, independence, risks, procedures, evidence, findings, reporting and fo…
Biobank / Sample Repository
Describe one persistent governed repository and its hosted collections, with custody, permitted use, assurance, access and retention evidence.
Biodiversity Occurrence
Evidence that an organism of a taxon was present or absent at a place and time.
Biological Pathway / Process
Represent a reusable, evidence-qualified molecular or cellular process description with explicit context and exchange limits.
Border / Customs / Migration
Coordinate independently mastered border, customs and migration records through explicit jurisdiction profiles and constrained evidence links.
Border Crossing Event
Represent an observed border crossing or observed crossing attempt, its evidence and subject-specific reported outcomes.
Broadcast / Stream
Describe an operator-governed broadcast or live/linear stream service through its distribution, occurrence and measurement evidence.
Budget
Represent a governed, versioned resource plan and its authorization, allocation, execution bindings, forecasts and performance context independently of storage, exchange or user i…
Build / Release
Provide the context an agent needs to understand, create, inspect and operate a software release aggregate: its identity and version designation, the build runs and provenance tha…
Building / Structure
Represent a persistent building or engineered structure as a governed physical artifact with identity, geometry, composition, fabric, materials, systems, capabilities, condition, …
Business Continuity / Recovery
Represent a governed continuity capability that identifies critical delivery, analyzes disruption impacts, releases strategies and plans, proves readiness through exercises, recor…
Business Establishment / Branch
Describe an organization operating presence with explicit source-defined kind, operator, sites, local activity and evidence.
Campaign
Represent a governed, coordinated set of activities directed at defined audiences, subjects or environments to produce intended outcomes over a bounded period without absorbing th…
Care Plan / Episode
Represent a governed care-context aggregate so agents can distinguish subject-specific planning from provider episode responsibility while connecting goals, participants, intended…
Celestial Body
Natural objects in space identified and characterised by orbit and physical properties.
Certificate / Credential Record
Describe the issued documentary representation of an attestation and its controlled local record context.
Change Request
Represent a formal, identifiable proposal to alter a controlled subject (configuration item, document, requirement set, service or process), together with its classification, just…
Channel / Community
Online spaces where members communicate around a shared topic, with membership and moderation.
Chemical Substance
Describe one governed chemical substance identity with qualified composition, property assertions and traceable evidence references.
Civil Works
Describe one enduring civil infrastructure work as an identifiable physical asset, with its extent, engineered fabric, intended function, observed condition and evidence-backed hi…
Claim / Proposition
Provide a format-neutral record of a truth-apt assertion: what proposition is asserted, under what scope and qualification, by whom and with what standing, how it relates to other…
Classification Binding
Provide a format-neutral, reusable pattern for the governed act of binding a subject to one or more terms drawn from an identified, versioned classification scheme, carrying the a…
Clearing / Settlement
Clearing of payment and trade obligations and their final settlement between accounts.
Climate
Climate normals, extremes and trends for a place or region over a reference period.
Clinical / Biological Specimen
Represent one governed physical material specimen and its source-qualified collection, derivation, condition, custody, quality, use and disposition history.
Clinical Observation / Diagnosis
Represent one source-qualified clinical assertion, explicitly profiled as an observation result, clinical impression or diagnosis-condition, so agents can interpret evidence, stat…
Commercial Contract
Give agents the context needed to identify, form, read, operate and close a legally binding commercial agreement between two or more parties as a jointly owned record, independent…