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.