Comprehensive Migration Guide: ISO 19135-1:2015 to ISO 19135:2026

We are pleased to announce the publication of a comprehensive upgrade guide to help organizations transition their existing registers from ISO 19135-1:2015 to ISO 19135:2026.

Why This Guide Matters

ISO 19135:2026 introduces significant changes that represent a paradigm shift in how registers are designed and managed. The new FERIN framework brings:

• Two-plane architecture: Separating concepts (meaning) from content (data)
• Capability-based conformance: Modular requirements instead of monolithic classes
• Commitments framework: Explicit promises about access, persistence, and transparency
• Technology neutrality: No prescribed XML schema—implement with any technology

What's the Minimal Work Required?

The guide focuses on practical migration with a clear answer to the most common question: "What's the minimum work I need to do?"

The answer is surprisingly simple:

1. Define your register specification — Document purpose, scope, governance, and commitments
2. Document your concept model — Define concepts, versions, relations, and register item classes

Guide Contents

The multi-page guide covers:

• Paradigm shifts in the new standard
• Terminology changes from 2015 to 2026
• Conformance class mapping
• Status value transformation
• Data model updates
• Governance changes
• Multiple migration paths
• Complete implementation checklist
• FAQ and common pitfalls

Helping the Community

This guide was created in response to community feedback. Many organizations have existing ISO 19135-1:2015 compliant registers and need clear, practical guidance on how to adopt the new standard. Our goal is to lower the barrier to adoption and help the community benefit from the improvements in FERIN.

Get Started

Visit the Upgrade Guide to begin your transition to ISO 19135:2026.