ISO 16642:2025

Overview

ISO 16642:2025 - Management of terminology resources - Terminological markup framework (TMF) - defines a modular framework for representing and exchanging terminological data collections (TDCs). The standard specifies a metamodel, methods for defining concrete terminological markup languages (TMLs), and mechanisms for expressing constraints and mapping data between different TMLs. TMLs are exemplified in XML in the document, but TMF is not restricted to a particular serialization format. The third edition (2025) updates definitions, DatCatInfo identifiers, examples aligned with TBX, and broadens scope beyond XML.

Key technical topics and requirements

• Metamodel and modular approach: TMF defines a shared, abstract metamodel plus data model extensions. This two-level design supports consistent analysis, design and interchange of terminological data.
• Data categories and DCRs: Uses formal data categories drawn from data category repositories (DCRs) such as DatCatInfo. Implementations must reference appropriate data category specifications and styles.
• TML definition and serialization: Requirements for defining a terminological markup language (TML), including structural organization, expansion trees and serialization formats. XML serialization is shown as an example.
• Constraints and datatypes: Mechanisms to implement constraints on datatypes and to anchor data categories to specific vocabularies or persistent identifiers (PIDs).
• Interchange & interoperability: Conditions and mapping rules that allow data expressed in one TML to be translated or mapped onto another TML to enable reliable data exchange between applications.
• Language representation & annotations: Guidance on representing languages, language sections, annotations, brackets and other modeling constructs required for comprehensive terminological entries.
• Conformance: Requirements and example scenarios for verifying that terminological data conform to TMF.

Practical applications and users

ISO 16642:2025 is designed to support the development, management and exchange of terminological data in a range of contexts:

• Terminology managers and terminologists building or curating TDCs
• Software vendors and developers of terminology management systems (TMS), termbases and lexicographic tools
• Localization and translation teams needing standardized term exchange (interoperability with TBX and other formats)
• NLP engineers, knowledge managers and ontology creators who integrate multilingual terminology into applications
• Standards organizations and corporate language governance teams seeking consistent metadata and data category usage

Related standards

• ISO 30042 (TermBase eXchange - TBX) - example interchange format aligned with terminological practice
• ISO 12620 / DatCatInfo - data category specifications and repositories referenced by TMF
• ISO 704 / ISO 1087 - foundational principles and vocabulary for terminology work

Use ISO 16642:2025 (TMF) to achieve consistent, interoperable terminological datasets, improve system-to-system exchange, and align implementations with recognized data category semantics for terminological resource management.