Figure 2From: OPPL-Galaxy, a Galaxy tool for enhancing ontology exploitation as part of bioinformatics workflowsOPPL pipeline. The OPPL engine takes an ontology (circle group on the left) and an OPPL script (dotted square) as inputs, and performs the changes defined by the OPPL script on the input ontology, thereby generating a new output ontology (modified ontology, on the right).Back to article page