The SeMAntic RepresenTation for Protocols, SMART Protocols, provides two ontology modules expressed in OWL to represent the document and workflow aspects of experimental protocols. The SMART Protocols-Document module aims to provide a structured vocabulary of concepts to represent information for reporting an experimental protocol. The SMART Protocols-Workflow module aims to provide a structured vocabulary of concepts to represent the execution of experimental protocols. The domain knowledge is modeled with the AO.
The ontology is documented here: http://vocab.linkeddata.es/SMARTProtocols/