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ISO 18629-12:2005

Industrial automation systems and integration -- Process specification language -- Part 12: Outer core

This standard has been reviewed and then confirmed in 2009 
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ISO 18629-12:2005 provides a representation of the concepts that belong to the outer core of the language, through a set of axioms and definitions. These axioms provide an axiomatization of the semantics for terminology in the ISO 18629 Outer core.

The following are within the scope of ISO 18629-12:2005:

  • the aggregation of activities and sub-activities;
  • discrete activities and state;
  • constraints on the occurrence of activities;
  • concurrency for primitive activities;
  • complex activities;
  • occurrences of complex activities.


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