Open Semantic Ecosystem for Enterprise & IT Architecture

Enterprise Architecture as a Queryable Knowledge Graph

Turning distributed architecture sources into reusable knowledge, enabling ontology-guided conversational analysis.

  • OWL — formalises meaning
  • SKOS — structures vocabulary
  • SHACL — enforces governance
  • SPARQL / MCP — answers questions
OWL SHACL SKOS ArchiMateC4 ModelUMLBPMNTOGAFZachmanEDGYBackstageJiraGitConfluenceLeanIXTerraformOpenAPI

The Problem

Architecture knowledge is scattered across tools that don't talk to each other

ArchiMate models sit in Archi. Service catalogues live in Backstage. Decisions are buried in Confluence, infrastructure in Terraform, delivery context in Jira. Nobody can answer a cross-cutting question without days of manual research.

The answer isn't another mega-tool. Distribution is the natural state of architecture knowledge — each discipline has legitimate reasons for its own notation and system of record. Consolidation attempts fail because they fight that reality.

Linked.Archi makes the data model the integration point instead of the tool. Sources keep their native semantics and stay where they are; a shared semantic contract lets them be queried as one graph.

At its core is an ontology-driven framework for semantic understanding and decentralised interaction with Enterprise Architecture processes and artefacts — across domains, disciplines and tools.

By capturing the relationships between low-level technical information and high-level architecture, it lets questions be asked in natural language and answered from evidence held in the knowledge graph.

The Semantic Layer

Three W3C standards, three distinct jobs

Not interchangeable, and not a stack you climb in order — OWL and SHACL are independent concerns operating under different assumptions.

OWL

Ontologies formalise meaning

Classes, properties and axioms define what an Application is and how it relates to a Capability. Open World — inference extends what is known.

SKOS

Taxonomies structure vocabulary

Controlled vocabularies, navigation and semantic indexing — so everyone means the same thing by the same term, and concepts can be browsed and mapped.

SHACL

Shapes enforce governance

Executable constraints, validation and derivation rules over architectural data. Closed World — governance that runs in CI, not in a review meeting.

Ontology-Guided Conversational Analysis

Ask in plain language. Get answers backed by evidence.

“Which applications realise our Claims capability — and what breaks if we retire Mainframe-B?”
natural language grounded in the ontology generated SPARQL answer with provenance

The ontology constrains interpretation, so terms resolve to real concepts and every claim traces back to triples in the graph — no hallucinated entities. Delivered through AI agent skills distributed via APM (Agent Package Manager).

What You Get

An ecosystem, not a single artefact

Semantic assets & templates

Ontologies, taxonomies, shapes, viewpoints, deliverable templates and presentation models.

Shared & custom metamodels

Use the published metamodels as-is, extend them, or compose your own from the core.

Converters

Turn native model files into RDF — available as JAR and Docker for pipeline use.

Generators

Produce documentation, diagrams and stakeholder deliverables from the graph.

AI agent skills (APM)

Agent Package Manager skills that let assistants query and reason over your graph.

Implementation guidelines

Modelling guides, design decisions, cross-language mappings and validation practice.

Coverage

Modelling languages, frameworks and standards — as linked data

Each formalised as an OWL ontology with SHACL shapes and SKOS taxonomies, plus cross-language mappings between them.

ArchiMate 3.2 & 4.0 C4 / Structurizr UML BPMN UAF TOGAF Zachman EDGY EA on a Page Backstage TIME ISO 42010 / 42020 / 25010

Leverage linked data to support decision-making in your organisation

Open source and standards-based. Start with the guide, explore the ontology index, or get in touch about applying it in your estate.