Taxonomies & Skills

Overview

Taxonomies & Organization covers tools for categorizing and organizing course content and metadata — including content tagging (applying taxonomy tags to courses and content blocks), taxonomy management, and course organization metadata (language, level, subjects).

This is a newer feature area in Open edX. Content tagging and taxonomy management were added as part of the broader openedx-learning initiative and are now available in frontend-app-authoring.

Current State (2026)

• Tagging UI: Authors can tag courses and individual content blocks with taxonomy tags directly in frontend-app-authoring
• Taxonomy management: Taxonomies (hierarchical controlled vocabularies) defined and managed via Django admin or the taxonomy API
• System taxonomies: Open edX ships with some built-in taxonomies (languages, difficulty level); operators can add custom ones
• Tag search: Tags can be used to filter content in library and course search
• OEP alignment: Taxonomy system designed to align with OEP-40 (Tags and Taxonomies)

Architecture

• Backend: openedx-learning provides the taxonomy and tagging data model; REST API for CRUD operations on taxonomies and tags
• Frontend: frontend-app-authoring renders the tagging sidebar; calls openedx-learning APIs
• Scoping: Taxonomies can be scoped to organizations or made system-wide
• Extensibility: Custom taxonomy sources (e.g., external SKOS vocabularies) can be integrated

Relevant Repositories

Repository	Role in This Feature	Activity Level	Notes
openedx/frontend-app-authoring	Tagging sidebar UI, taxonomy management pages	High	Main frontend
openedx/openedx-learning	Taxonomy and tagging backend (OEP-40)	High	Data models + API
openedx/openedx-platform	Course metadata fields (language, level, org)	High	Legacy metadata
openedx/edx-organizations	Organization management	Low	Org scoping

Recent Changes

• Content tagging feature actively developed and released in recent Open edX named releases
• Taxonomy API stabilization

History

Origin

• Year introduced: ~2023 (content tagging as a distinct feature)
• Initial implementation: Simple course metadata fields (language, level, subjects) existed from early edX; structured taxonomy system is much newer
• Context: As course catalogs grew to thousands of courses, discovery and organization needed structured metadata

Key Milestones

Year	Milestone	Teams / People Involved
Early	Course metadata fields (language, level) in course settings	Unknown
~2022–2023	OEP-40 (Tags and Taxonomies) proposal and development	Unknown
~2023–2024	Content tagging UI released in frontend-app-authoring	Unknown

People Who Shaped This Area

• Engineering: Unknown — open question for interview
• Product: Unknown — open question for interview
• Design: Unknown — open question for interview

Open Questions

• [ ] What was the product case for building a full taxonomy system vs. simpler tagging?
• [ ] Who authored OEP-40 and what was the design process?
• [ ] How are taxonomies being used in practice by early adopters?
• [ ] How does tagging integrate with search and catalog discovery?
• [ ] What external taxonomy standards (SKOS, Dublin Core) influenced the design?