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Governance

Ontology-as-a-Product

A governed, agile operating model for enterprise knowledge graph management — with semantic contracts, CI/CD quality gates, and certified KPI dashboards.

OAAP (Ontology-as-a-Product) is ArcaQ's key differentiator for sovereign, auditable enterprise AI.

The Ontology-as-a-Product Model

Why it matters: OAAP is the key differentiator that turns ontology from static documentation into an operational advantage.

ArcaQ treats the enterprise ontology as a living product, not a static artefact. Each concept is governed by a semantic contract, every change goes through a CI/CD pipeline, and KPIs are certified by named domain experts.


RACI — Who Does What

Clear accountability prevents ontology chaos in multi-domain enterprises.

Role Responsibilities
Ontology Product Owner Prioritises the concept backlog, approves change proposals, owns the contracts registry
Ontology Architect Designs class hierarchy, namespace policy, SHACL shapes, OWL axioms
Domain Steward Validates domain-specific concepts, certifies KPIs, signs off bilingual labels
Ontology Engineer Implements TTL, runs CI/CD pipeline, resolves SHACL violations, manages releases
Knowledge Consumer Uses the ontology via SPARQL, API, or OData — raises change proposals when gaps found

Concept Lifecycle

Every concept in ArcaQ's ontology follows a governed 5-state lifecycle.

✏️
Draft
🔍
Under Review
Validated
🚀
Deployed
Deprecated

Semantic Contracts

A Semantic Contract is a binding agreement defining the cardinality, constraints, versioning policy, and deprecation rules for each ontology concept. No concept enters production without a valid contract.

SC-001
DataRule Contract
Jurisdiction-bound data processing rule with mandatory bilingual label, domain assignment, and legal basis
SC-002
Regulation Contract
Binding legal instrument with official source IRI, jurisdiction, and issue date
SC-003
KPI Contract
Certified computable indicator with formula, unit, confidence score, and named-expert certification
SC-004
SemanticRelation Contract
Typed semantic link with confidence score, inference method, and provenance graph
SC-005
ChangeProposal Contract
Formal governance artefact for tracking all ontology changes from draft to deployment

Ontology CI/CD Quality Gates

Every ontology release — including hotfixes — must pass 5 automated quality gates before deployment.

G1
OWL Syntax Lint
rdflib parses every Turtle file. Any syntax error blocks the release immediately.
G2
SHACL Contracts
pyshacl validates the graph against all semantic contract shapes. Violations block; warnings alert.
G3
Business Regression Tests
5 critical SPARQL ASK scenarios covering orphan rules, uncertified KPIs, circular chains, deprecation dates, bilingual labels.
G4
Coverage Threshold
≥80% of classes must have EN+FR bilingual labels. ≥10 classes, ≥5 properties required.
G5
Backward Compatibility
SemVer delta: removed classes/properties trigger MAJOR version bump. Blocks silent breaking changes.

Live Ontology KPI Dashboard

Real-time ontology health and adoption metrics — available via the ArcaQ dashboard and REST API.

🏷️
Bilingual Label Coverage
% of classes with EN + FR rdfs:label
Certified KPIs
KPIs with named-expert certification (certifiedBy + certifiedAt)
⚠️
SHACL Violation Count
Current open violations by severity
📋
Open Change Proposals
Proposals in draft or under-review state
🗺️
Semantic Coverage
% of business domains with ontology coverage
🔢
Triple Count
Total triples in the production knowledge graph

30 / 60 / 90-Day Roadmap

ArcaQ's phased approach to Ontology-as-a-Product maturity.

30 days
Foundation
  • Deploy SHACL contracts for DataRule, Regulation, KPI
  • Achieve ≥80% bilingual label coverage
  • Configure CI/CD pipeline with 5 quality gates
  • Establish RACI and Ontology Product Owner role
60 days
Quality & Governance
  • Zero SHACL violations in production
  • All KPIs certified by named domain experts
  • Change proposal workflow live (draft → deployed)
  • Live KPI dashboard integrated with ArcaQ UI
90 days
Scale & Adoption
  • Cross-domain semantic relations validated
  • OData + REST API consumption metrics tracked
  • Quarterly governance cadence established
  • Ontology coverage ≥90% of active business domains

Govern Your Enterprise Knowledge

Deploy ArcaQ's Ontology-as-a-Product model in your organisation — sovereign, certified, auditable.

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