Overview
ISO/TS 24634:2021 - Management of terminology resources: TBX‑compliant representation of concept relations and subject fields specifies requirements and recommendations for representing subject fields and concept relations in TBX‑compliant terminological document instances. The Technical Specification focuses on interoperability of termbases, demonstrates examples in the DCA style of TBX markup, and shows how to declare subject‑field classifications either in the TBX backmatter or via an XML namespace.
Key topics and requirements
- Scope and purpose
- Defines how to represent /subject field/ and /concept relation/ data categories in TBX to maximize interoperability of terminology resources and termbases.
- Subject‑field handling
- A picklist is required as the content model for subject fields (closed list of permissible values).
- The name of each subject‑field classification must be declared in the TBX header (tbxHeader/fileDesc/sourceDesc).
- Subject‑field classifications can be declared in the backmatter or implemented through an XML namespace (backmatter is described in this TS; XML namespace applies to DCT style).
- For hierarchical subject fields, the position of a value can be specified by:
- referencing the backmatter hierarchy (unique IDs link levels), or
- indicating the full path within the concept entry.
- Recommended to include clear scope descriptions for each subject field (or reference a public classification like EuroVoc) so users can assign values consistently.
- Concept relations
- Typology covered includes hierarchical relations (generic, partitive) and associative relations; TBX modules can specify relations for TBX dialects.
- Emphasizes consistent use of data categories (DCs) from repositories (e.g., DatCatInfo) to ensure semantic interoperability.
- TBX markup examples
- Shows practical element usage such as and to pair subject field values with their classification IDs.
Applications and users
This specification is useful for:
- Terminologists and terminology managers standardizing large termbases and subject‑field taxonomies.
- Localization and translation teams integrating TBX into translation memory and terminology workflows.
- Software vendors and tool developers building TBX‑compliant editors, validators and import/export utilities.
- Standards bodies and knowledge managers merging termbases or exposing terminological metadata for search, subsetting, and reuse.
Practical benefits include improved interoperability, clearer subject categorization, easier search and subsetting by domain, and consistent representation of concept relations across TBX instances.
Related standards
- ISO 30042 - TermBase eXchange (TBX)
- ISO 1087 - Terminology work and terminology science - Vocabulary
- ISO 12620‑1 / ISO 12620‑2 - Data categories (specifications and repositories)
- W3C SKOS - Simple Knowledge Organization System (relevant for mapping subject‑field taxonomies)
Keywords: ISO/TS 24634:2021, TBX, terminology resources, subject fields, concept relations, termbase, DCA style, TBX backmatter, data categories, interoperability.