I2IDL Linked Data

Open, interoperable Linked Data publication and research services for the I2IDL Glossary of Digital Learning. The project combines a curated semantic reference graph with browser-based exploration and experimental scholarly discovery.

Versioning: The GitHub release tag, the glossary's gs:publicationVersion, and the Squarespace embed version must be verified independently before publication. See the release checklist. The npm package version is not the glossary publication version.

Public resources

Resource	Purpose
Glossary of Digital Learning	Human-readable curated concepts, definitions, sources and evidence
Developer portal	MCP, REST API, SPARQL, Linked Data, and Graph Explorer entry point
Knowledge Graph Explorer	Navigate semantic relationships, compare concepts, analyze graph structure and discover scholarship
Explorer Activity	Public 30-day aggregate engagement counts
JSON-LD graph	Canonical machine-readable publication
SPARQL	Read-only knowledge-graph queries
Persistent namespace	Resolvable concept, definition, source and scheme identifiers
MCP for AI assistants	Public, read-only semantic tools (setup guide)

What the project provides

• Curation and provenance: Persistent identifiers, definitions, evidence records, editorial collections, citations, rights and source attribution.
• Semantic interoperability: JSON-LD, SKOS, Dublin Core Terms, Schema.org, PROV-O, controlled relationships and selected external mappings.
• Graph exploration: Search and navigate a one- or two-hop concept network, shortest paths, comparison tools, field and source analytics.
• Scholarly discovery: Single-concept and two-to-five-concept OpenAlex searches with publication year, open-access, and citation ranking controls. Results remain uncurated discovery candidates, separate from I2IDL's assertions.
• Research export: CSV and BibTeX downloads of displayed publications with DOI and selected concept identifiers.
• Public aggregate activity: Daily pageviews, concept selections, successful research searches, and returned publication counts. These are not unique visitors or unique papers.
• Machine access: JSON-LD and Turtle representations with content negotiation and bounded read-only SPARQL.

Quick start

npm ci
npm run validate
npm run relationships:coverage

See validation, deployment, and the release checklist before publication. For deployed-service checks, run npm run validate:live.

Documentation

• Documentation index
• Architecture and semantic model
• Explorer and scholarly discovery
• Explorer Activity: metrics and privacy
• API reference, SPARQL, and security
• MCP Quick Start and AI integration
• Release checklist and roadmap

Editorial boundary and licenses

Interactive analytics and OpenAlex search results do not write new statements into the canonical JSON-LD graph. New definitions, evidence, mappings and relationships require separate editorial review and validation.

Repository software is distributed under Apache License 2.0. I2IDL-original glossary material is generally CC BY 4.0 unless otherwise noted; third-party content retains source-specific rights. See data licensing, semantic relationship policy, and external mappings.