Clinical Metadata Exploration Ontology

OntoBee AberOWL OLS BioPortal Bioregistry

CMEO describes the metadata of clinical studies: study design and protocol, eligibility criteria, outcomes, the variables collected and how they are specified (data type, units, codes, visits, missing values), and data access and use conditions. Each study can be represented as a knowledge graph, so that variables and study designs can be compared and harmonized across studies. CMEO reuses BFO, IAO, OBI, OBCS, STATO, RO, DUO and other OBO ontologies.