Glossary
Key terms from ISO 19135:2026 with expanded explanations.
A
- Action
An operation that changes the state or content of a register.
Interpretation: FERIN defines required actions (add, invalidate, supersede, etc.) and optional actions (redaction, deletion, etc.).
- Addition
The action of including a new concept or register item in a register.
Interpretation: Requires governance approval in governed registers. Creates change history.
- Appeal
A formal request to reconsider a decision made by the Control Body.
Interpretation: Appeals should be documented with their outcome.
C
- Concept
An abstract idea or category that can be defined and that exists in the concept plane.
Interpretation: Concepts represent "what something means" independent of any specific representation.
- Concept Definition
A statement that describes the meaning of a concept.
Interpretation: Can evolve over time through concept versions.
- Concept Plane
The abstract layer where concepts and their meanings exist.
Interpretation: Separate from the content plane where data is stored.
- Concept System
A structured set of concepts related to each other.
Interpretation: Common patterns: generalization-specialization, whole-part, sequential.
- Concept Version
A specific version of a concept definition at a point in time.
Interpretation: Created when a definition changes significantly.
- Content Plane
The layer where concrete register items and their data exist.
Interpretation: Content is versioned, has status, and can be referenced.
- Control Body
The entity responsible for reviewing and deciding on proposals.
Interpretation: Should be separate from the Manager role in high-risk registers. For low-risk registers, combining roles may be acceptable. See Risk Management for guidance.
- Correctional Change
A change that corrects an error in existing content.
Interpretation: May or may not require a new version depending on significance.
D
- Deletion
The action of permanently removing content from a register.
Interpretation: Use carefully—breaks references. Consider invalidation instead.
F
- Functional Identifier
An identifier that always retains its original intent by enabling its association to be redirectable and change over time.
Interpretation: Must support hierarchical specification (URI, URN, URL). Used for semantic addressing. Required for concepts, concept versions, register items, register item classes, and changes.
G
- Governance
The system of rules, practices, and processes for managing a register.
Interpretation: Includes roles, responsibilities, and decision-making processes.
I
- Invalidation
The action of marking content as no longer valid for use.
Interpretation: Content remains accessible for history but should not be used.
M
- Managed Content
Content that is subject to governance and change management.
Interpretation: Distinct from administrative information about the register itself.
O
- Object Identifier
An identifier that identifies an object where the association is non-redirectable and does not change over time.
Interpretation: Permanently assigned to a specific object. Only concerned with uniqueness. Required for concepts, concept versions, register items, register item classes, and changes.
P
- Proposal
A formal request to add, change, or remove content in a register.
Interpretation: Requires justification and goes through governance approval.
- Proposer
The entity that submits a proposal for changes to the register.
Interpretation: Can be any authorized stakeholder in governed registers.
- Published
The status of content that is visible and available to users.
Interpretation: Content can be valid but unpublished (e.g., during review).
R
- Realised Concept
A concept that is linked to specific register item content.
Interpretation: The bridge between concept plane and content plane.
- Redaction
The action of hiding or removing sensitive content.
Interpretation: Can be soft delete, hard delete, or access control based.
- Register
A managed collection of information with defined governance.
Interpretation: Has an owner, follows a specification, implements FERIN framework.
- Register Item
A concrete piece of content in a register.
Interpretation: Has identifier, status, attributes, and is managed through actions.
- Register Item Class
A category of register items with common attributes.
Interpretation: Defines the schema for a type of content.
- Register Manager
The entity responsible for day-to-day register operations.
Interpretation: Coordinates proposals, maintains documentation, reports to Owner.
- Register Owner
The entity accountable for the register's existence and direction.
Interpretation: Approves specification, assigns Manager, makes final decisions.
- Register Specification
A document defining a register's scope, governance, and commitments.
Interpretation: Required for all FERIN-compliant registers.
- Register System
The technical infrastructure that implements the register.
Interpretation: Database, API, user interface, etc.
- Relation
A defined relationship between concepts or register items.
Interpretation: Types: has concept, instance of, has definition, supersedes, inherits, has part.
S
- Status
The state of a concept or register item.
Interpretation: Primary statuses: valid/invalid, published/unpublished, superseded.
- Substantive Change
A change that has major impact on the use of content.
Interpretation: Requires a new version. Contrast with non-substantive change.
- Succession
The transfer of responsibility for a register to another entity.
Interpretation: Part of decommissioning or organizational change.
- Supersession
The action of replacing content with a newer version.
Interpretation: Creates link from superseded to superseding item.
- System Manager
The entity responsible for technical operation of the register system.
Interpretation: Maintains infrastructure, ensures availability, implements changes.
U
- Unmanaged Content
Content not subject to governance processes.
Interpretation: May transition to managed if it becomes subject to governance.
- Unpublish
The action of removing content from public visibility.
Interpretation: Content still exists but is hidden from normal queries.
V
- Valid
The status of content that is approved and appropriate for use.
Interpretation: Contrast with invalid—content should not be used.
- Version
A specific snapshot of content at a point in time.
Interpretation: Versions enable history, comparison, and rollback understanding.