ISO 24635-1:2025 PDF

Overview

ISO 24635-1:2025 - Language resource management - Corpus annotation project management - Part 1: Core model - defines a core project-management model for corpus annotation projects. It specifies required work packages, project roles, processes and deliverables to ensure interoperable, reusable and high-quality annotated corpora. The standard addresses coordination, human training, software use, quality control, licensing and metadata management, but intentionally does not prescribe specific annotation methodologies.

Key topics and requirements

• Project organization & roles: Defines typical roles (project manager, technical manager, work-package manager, process leader, team members) and their responsibilities for annotation projects.
• Work packages & deliverables: Specifies the work packages that form the project structure and the verifiable deliverables expected from each package.
• Project management process groups: Aligns with standard process groups (initiating, planning, executing, monitoring & controlling, closing) to structure annotation workflows.
• Integration & interoperability: Emphasizes coordination among work packages, adoption of broader annotation standards and ontology integration to support resource sharing and interoperability.
• Human resources & interrater reliability: Requires training, qualification tracking, testing and interrater reliability practices to ensure consistent annotations.
• Annotation guidelines & software: Calls for clear guideline management and proper use of annotation tools - including considerations for AI/ML-assisted annotation environments.
• Quality control & validation: Outlines the need for systematic quality control, data validation, structured documentation and ongoing curation to maintain long-term usability.
• Licensing, copyright & metadata: Stresses documentation of licences and copyrights, and metadata practices to enable lawful sharing and selective distribution of annotated subsets.

Practical applications and who uses it

ISO 24635-1:2025 is valuable for:

• NLP and AI/ML teams building training datasets and evaluation corpora.
• Corpus linguists, lexicographers and language resource managers coordinating annotation efforts.
• Project managers overseeing annotation projects who need a governance framework for roles, deliverables and quality.
• Data curators, archivists and legal teams managing licensing, metadata and long-term preservation.
• Academic and industry labs aiming for reproducible, interoperable annotated resources for research, benchmarking or commercial models.

By applying this core model, teams can improve annotation consistency, accelerate integration with downstream tools, and reduce legal and quality risks when sharing corpora.

Related standards

• ISO 24635 series (Part 2: training model; Part 3: validation model - see ISO website for status).
• ISO 24623-1 (annotation terminology), ISO 21502 (project deliverables), ISO/IEC/IEEE 24765 (project terms) and related ISO project-management guidance referenced in the document.

For implementation, acquire the full ISO 24635-1:2025 text from ISO or your national standards body to view formal definitions, process flows and annex material.