Fig. 4From: The Ontology of Biological and Clinical Statistics (OBCS) for standardized and reproducible statistical analysisIllustration of logical axioms and subclasses of ‘data collection’ in OBCS. This is a screenshot of Protégé OWL editor display of OBCS. As shown here, this term is defined by an equivalent axiom, four subclass axioms, and one inherited subclass axiom. There are 12 subclasses under ‘data collection’Back to article page