Agriculture

Ontologies about farming systems, crops, food production, and agricultural vocabularies.

Arts and Humanities

Ontologies that describe music, iconography, cultural artifacts, and humanistic content.

Biology and Life Sciences

Ontologies about biological entities, systems, organisms, and molecular biology.

Chemistry

Ontologies describing chemical entities, reactions, methods, and computational chemistry models.

Ecology and Environment

Ontologies about ecological systems, environments, biomes, and sustainability science.

Education

Ontologies describing learning content, educational programs, competencies, and teaching resources.

Events

Ontologies for representing events, time, schedules, and calendar-based occurrences.

Finance

Ontologies describing economic indicators, e-commerce, trade, and financial instruments.

Food and Beverage

Ontologies related to food, beverages, ingredients, and culinary products.

General Knowledge

Broad-scope ontologies and upper vocabularies used across disciplines for general-purpose semantic modeling.

Geography

Ontologies for modeling spatial and geopolitical entities, locations, and place names.

Industry

Ontologies describing industrial processes, smart buildings, manufacturing systems, and equipment.

Law

Ontologies dealing with legal processes, regulations, and rights (e.g., copyright).

Library and Cultural Heritage

Ontologies used in cataloging, archiving, and authority control of cultural and scholarly resources. Includes standards for bibliographic metadata, identity disambiguation, and linked data for museums, libraries, and archives.

Materials Science and Engineering

Ontologies related to materials, their structure, properties, processing, and engineering applications.

Medicine

Ontologies covering clinical knowledge, diseases, drugs, treatments, and biomedical data.

News and Media

Ontologies that model journalism, broadcasting, creative works, and media metadata.

Scholarly Knowledge

Ontologies modeling the structure, process, and administration of scholarly research, publications, and infrastructure.

Social Sciences

Ontologies for modeling societal structures, behavior, identity, and social interaction.

Units and Measurements

Ontologies defining scientific units, quantities, dimensions, and observational models.

Upper Ontologies

Foundational ontologies that provide abstract concepts like objects, processes, and relations.

Web and Internet

Ontologies that model web semantics, linked data, APIs, and online communication standards.