Process Specification Language

Process Specification Language (PSL) is an ontology developed at the National Institute of Standards and Technologies(NIST) for description of basic manufacturing, engineering and business processes. In the manufacturing domain, PSL’s objective is to serve as an interlingua for integrating several process-related applications (including production planning, process planning, workflow management and project management) throughout the manufacturing process life cycle. The foundation of the ontology is a set of primitive concepts ( activity, object, timepoint and relationship) functions ( beginof, endof ) and relations (participates-in, between, before,occurring-at) that are common to all types of manufacturing processes.