ISO 18629 (Process Specification Language)

The goal of the Process Specification Language project is the development of a common ontology for process modelling which enables the interoperability of manufacturing process descriptions between manufacturing engineering and business software applications such as process planning, scheduling workflow, business process reengineering, and project management.

PSL has been demonstrated in several software interoperability scenarios:

PSL: A semantic domain for flow models,
PSL: Principles and Applications
PSL for project scheduling information exchange
Ontologies for integrating engineering applicatons
Semantic Integration through Invariants

Two companies are currently building commercial software tools to manipulate PSL process descriptions. Within the academic and industrial research communities, PSL is serving as the logical foundation for the Semantic Web Services Ontology, which was submitted to the World Wide Web Consortium. This ontology addresses the need for richer semantic specifications of web services, based on a comprehensive representational framework that spans the full range of service-related concepts.

In 2005, PSL was officially published as an International Standard with the name ISO 18629 by the Joint Working Group 8 of Sub-committee 4 Industrial data and Sub-committee 5 Manufacturing integration of Technical committee ISO TC 184, Industrial automation systems and integration of the International Organization of Standardization. It is the first engineering standard based on mathematical logic.

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