Graphical illustration of BAO 2.0 measure group class definition. The class measure group is used to group and link one or more sets of experimental results to one bioassay. By definition one assay can have multiple measure groups. The measure group contains overlapping axioms with the bioassay, which allows the reasoner to infer that the measure group is acting like an equivalent class of the bioassay; i.e., measure group is inferred as subclass of bioassay. Shown is an example of kinase concentration-response profiling panel assay, in which compounds are tested at m concentrations against n kinase targets.