Schematic diagram of use case I The nodes and the edges represent a section of an ontology, with the higher nodes representing terms with general descriptions, and the nodes further down in the graph depicting terms with higher specificity. The nodes in green and blue represent the terms associated with the molecular function term id 1 and term id 2, respectively. The red nodes represent the terms shared by search terms, with the most specific term encircled in red.
Antezana et al. BMC Bioinformatics 2010 11(Suppl 12):S8 doi:10.1186/1471-2105-11-S12-S8