What is FERIN?
A standardized framework for managing information in registers that serves both human and machine consumers. FERIN provides persistent identification, controlled evolution, and complete change history for any domain, and is standardized in ISO 19135:2026, the International Standard for Information Registration.
Register Specification Builder
Create ISO 19135 compliant register specifications with our interactive builder. Design your register's governance, content requirements, and conventions step by step — then export to Metanorma AsciiDoc or Markdown format.
- Step-by-step guided workflow
- All 11 ISO 19135 specification sections
- Save & resume your work anytime
- Export to Metanorma-ready formats
Choose Your Path
Whether you're new to FERIN, building a register, or migrating from the previous edition, we have guidance tailored to your journey.
Learn About FERIN
Understand the framework principles, register types, and conceptual model.
Build a Register
Implement a new FERIN-compliant register from design to deployment.
Upgrade from 2015
Migrate your ISO 19135-1:2015 register to the new FERIN framework.
Adopt for Existing Data
Formalize an existing registry or code list using FERIN patterns.
Integrate Systems
Connect applications and services to a FERIN register via APIs.
Find Answers
Search documentation, glossary, samples, and reference materials.
Key Implementation Topics
Essential guidance for building FERIN-compliant registers.
Substantive vs Non-Substantive Changes
How to decide whether a change requires a new version or can be applied to the current one.
Implementation GuideDesigning Persistent Identifiers
Choosing and implementing identifier schemes that remain stable over time.
Best PracticesRisk-Based Governance
Match your governance rigor to your register's risk level.
Migration GuideUpgrade from 2015 Edition
Migrate your existing ISO 19135-1:2015 register to the new FERIN framework.
Conceptual GuideConcept Granularity
When to create a new concept vs. a new version of an existing concept.
ReferenceCommitment Levels Explained
Understanding access, persistence, and transparency commitments.
Latest News
Stay updated with the latest from the FERIN community.
Introducing the Register Specification Builder: Create ISO 19135 Compliant Specifications with Ease
We are excited to announce the release of the Register Specification Builder—an interactive, browser-based tool that guides you through creating complete ISO 19135 compliant register specifications.
Read full announcement →Comprehensive Migration Guide: ISO 19135-1:2015 to ISO 19135:2026
We are pleased to announce a comprehensive migration guide to help organizations transition their existing registers from ISO 19135-1:2015 to ISO 19135:2026.
Read full announcement →FERIN is codified in ISO 19135:2026. This site provides interpretation and practical guidance beyond the standard specification. FERIN is a non-registered trademark of the Enosema Foundation.