Ontology of Anatomical Entities

"The AEO is an ontology of anatomical structures that expands CARO, the Common Anatomy Reference Ontology, to about 160 classes using the is_a relationship; it thus provides a detailed type classification for tissues. The ~100 new classes were chosen for their use in categorizing the major vertebrate and invertebrate anatomy ontologies at a granularity adequate for tissues of a single cell type.
The AEO is intended to be useful in increasing the amount of knowledge in anatomy ontologies, facilitating annotation and enabling interoperability across anatomy ontologies.

Product Types Ontology

"This service provides ca. 300,000 precise definitions for types of product or services that extend the schema.org and GoodRelations standards for e-commerce markup. You can use this ontology to describe any object for which a matching entry in the English Wikipedia exists. Thanks to the many links between the multiple language editions of Wikipedia, you can search for the best class in your favorite language, e.g. in the German or Italian Wikipedia, and then click on the English translation on the left-hand side to get to the matching page in the English Wikipedia."

Bioinformatics Web Services Ontology

"The Bioinformatics Web Services ontology (OBIws) is an ontology that extends the Ontology for Biomedical Investigations (OBI) to build an Ontology that supports consistent annotation of Bioinformatics Web services. We also consider reuse of terms available from the EMBRACE Data And Methods (EDAM) ontology. We follow a systematic methodology for enriching OBI with terms to support Web service Annotation. This process involves the design of ontology analysis diagrams for Web services and their subsequent analysis to discover terms that need to be added to the ontology.


"BioPAX is a standard language that aims to enable integration, exchange, visualization and analysis of biological pathway data. Specifically, BioPAX supports data exchange between pathway data groups and thus reduces the complexity of interchange between data formats by providing an accepted standard format for pathway data. It is an open and collaborative effort by the community of researchers, software developers, and institutions."


"The flood of data and factual knowledge in biology and medicine requires principled approaches to their proper analysis and management. A cornerstone in this effort constitutes the precise and complete description of the fundamental entities within this domain in terms of formal ontologies.

NIFSTD Ontology

"The NIFSTD ontology is composed of a collection of OWL modules covering distinct domains of bio-medical reality. We are using a semantic wiki to expose the content of the NIFSTD vocabularies to the community for comment and development. We are experimenting with Wiki's abilities for collaborative editing and commenting on the NIFSTD. Each class in NIFSTD has been turned into a Wiki page, using technologies developed as part of the Semantic Media Wiki project."

Brucellosis Ontology

"The Brucellosis Ontology (IDOBRU), a biomedical ontology in the brucellosis domain, is an extension ontology of the core Infectious Disease Ontology (IDO-core) and follows OBO Foundry principles. Currently IDOBRU contains 1503 ontology terms, which includes 739 Brucella-specific terms, 414 IDO-core terms, and 350 terms imported from 10 existing ontologies. IDOBRU is the first reported bacterial infectious disease ontology developed to represent different disease aspects in a formal logical format.


"EuroVoc is a multilingual thesaurus which was originally built up specifically for processing the documentary information of the EU institutions.
It is a multi-disciplinary thesaurus covering fields which are sufficiently wide-ranging to encompass both Community and national points of view, with a certain emphasis on parliamentary activities. EuroVoc is a controlled set of vocabulary which can be used outside the EU institutions, particularly by parliaments.