Empowering Your Last Mile of Digitalization

Semantic interoperability, taxonomy architecture, and knowledge graph solutions for enterprises and government organizations.

Our Services

We specialize in the critical gap between data infrastructure and semantic intelligence — the last mile that transforms digital assets into institutional knowledge.

Taxonomy Architecture & Design

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.

Taxonomic Asset Reconciliation

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.

Ontology Development (SKOS, OWL)

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.

Knowledge Graph Development

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 Integration

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.

VocBench Training & Support

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.

Taxonomy & Ontology Training

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.

Digital Sovereignty Consulting

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.

Estonian Statistics Department

Taxonomy Reconciliation at National Scale

The Challenge

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.

15 4 Classification Systems Unified
96% EU Vocabulary Alignment
180K Annual Savings (EUR)
35 Staff Trained & Certified

Our Methodology

01

Discovery & Audit

Catalogued 15 systems with 47,000+ concepts, identified 3,200+ overlaps

02

Governance Design

Co-designed RACI matrix, change control, and SKOS vocabulary standards

03

VocBench Deployment

Configured role-based access for 40+ contributors across 6 departments

04

Reconciliation

Created 1,800+ SKOS mappings to Eurostat, merged redundant systems

05

Training & Handover

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."

Training Programs

We empower your last mile of digitalization by building internal capability — not dependency. Our training transfers expertise that lasts.

2 Days

VocBench Fundamentals

Master the essentials of collaborative vocabulary management. Learn to create, edit, and publish SKOS vocabularies using the open-source standard.

  • VocBench interface and workflow
  • SKOS concept creation and relationships
  • Collaborative editing and review
2 Days

VocBench Advanced

For power users and administrators. Configure custom workflows, manage complex ontologies, and integrate VocBench with enterprise systems.

  • Custom workflow configuration
  • OWL ontology management
  • API integration and automation
3 Days

SKOS Taxonomy Development

Design and build production-ready taxonomies using SKOS. Covers concept modeling, relationships, and publication best practices.

  • Taxonomy design patterns
  • SKOS semantic relationships
  • Quality assurance and validation
3 Days

OWL Ontology Engineering

Build rich semantic models with OWL. Learn to capture domain knowledge in formal ontologies that enable reasoning and inference.

  • OWL language constructs
  • Domain modeling methodology
  • Reasoning and validation
2 Days

Knowledge Graph Fundamentals

Understand the architecture and applications of knowledge graphs. From data modeling to query languages to enterprise integration.

  • RDF and graph data models
  • SPARQL query language
  • Integration patterns
1 Day

Semantic Interoperability for Managers

Executive overview of semantic technologies. Understand ROI, governance requirements, and strategic planning for semantic initiatives.

  • Business case development
  • Governance frameworks
  • Vendor and technology evaluation

Custom curricula available for large institutions. Public sector pricing on request.

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About METALEVELS

The "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.

Last Mile Focus

We specialize in the critical gap that most consultancies overlook

Empowerment Over Dependency

We build client capability and transfer expertise that lasts

European Values

Digital sovereignty, open standards, institutional independence

Taxonomy tree visualization

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Ready to address your last mile of digitalization? We'd like to understand your challenges and explore how we can help.