Semantic interoperability, taxonomy architecture, and knowledge graph solutions for enterprises and government organizations.
We specialize in the critical gap between data infrastructure and semantic intelligence — the last mile that transforms digital assets into institutional knowledge.
We design taxonomies that create order from chaos — intuitive structures built on proven patterns from 50+ enterprise implementations. The result: faster findability, reliable reporting, and a foundation for AI.
When mergers or organic growth leave you with overlapping vocabularies, we systematically merge, map, and harmonize your classification systems without disrupting operations — proven with Estonia's national statistics infrastructure.
We design OWL ontologies that capture your domain's nuances — relationships, rules, and constraints that enable reasoning and inference. From domain modeling to production deployment, we build ontologies machines can use.
Transform siloed data into connected intelligence. We build knowledge graphs that unify enterprise data, enabling queries that span systems and surface insights hidden in relationships.
AI without semantic structure hallucinates. AI with a knowledge graph reasons. We design the semantic layer that grounds your LLMs, RAG pipelines, and ML systems in authoritative institutional knowledge.
Master the open-source standard for collaborative vocabulary management. Our VocBench programs — from introductions to certification tracks — equip your team to manage taxonomies and ontologies collaboratively.
Build internal semantic capability that lasts. Our training covers taxonomy design principles, SKOS development, OWL modeling, and governance best practices. We transfer expertise, not dependency.
Your AI is only as sovereign as your knowledge layer. We help organizations achieve true digital independence — from vendor lock-in assessments to open-source migration strategies. Aligned with EU digital values.
Taxonomy Reconciliation at National Scale
Estonia's Statistics Department faced a crisis common to national statistics offices: decades of organic taxonomy development had created 15+ independent classification systems with overlapping concepts, poor documentation, and semantic misalignment that blocked EU data exchange.
They needed not just a cleanup, but a sustainable framework for managing semantic assets long-term — and full alignment with Eurostat standards before upcoming EU requirements.
Catalogued 15 systems with 47,000+ concepts, identified 3,200+ overlaps
Co-designed RACI matrix, change control, and SKOS vocabulary standards
Configured role-based access for 40+ contributors across 6 departments
Created 1,800+ SKOS mappings to Eurostat, merged redundant systems
Trained 35 staff, 8 taxonomy stewards, full documentation delivered
"The project has become a reference implementation cited by Eurostat. Two other national statistics offices have requested similar engagements based on Estonia's recommendation."
We empower your last mile of digitalization by building internal capability — not dependency. Our training transfers expertise that lasts.
Master the essentials of collaborative vocabulary management. Learn to create, edit, and publish SKOS vocabularies using the open-source standard.
For power users and administrators. Configure custom workflows, manage complex ontologies, and integrate VocBench with enterprise systems.
Design and build production-ready taxonomies using SKOS. Covers concept modeling, relationships, and publication best practices.
Build rich semantic models with OWL. Learn to capture domain knowledge in formal ontologies that enable reasoning and inference.
Understand the architecture and applications of knowledge graphs. From data modeling to query languages to enterprise integration.
Executive overview of semantic technologies. Understand ROI, governance requirements, and strategic planning for semantic initiatives.
Custom curricula available for large institutions. Public sector pricing on request.
Inquire About TrainingThe "last mile" in digitalization is where data becomes knowledge — where taxonomies enable findability, ontologies enable reasoning, and semantic layers enable AI.
Most digital transformations invest heavily in infrastructure but neglect this critical final step. Organizations end up with connected systems that can't truly communicate — the data flows, but the meaning doesn't.
METALEVELS specializes in this last mile. We bridge the gap between raw data infrastructure and true semantic interoperability, transforming digital assets into institutional intelligence.
We specialize in the critical gap that most consultancies overlook
We build client capability and transfer expertise that lasts
Digital sovereignty, open standards, institutional independence
Ready to address your last mile of digitalization? We'd like to understand your challenges and explore how we can help.