is prohibited.
In the BPMN metamodel we define both the four different groups of primitives
defined in BPMN specification and two other concepts: the concept of the business
process diagram and the concept of process.
???. Business.process.diagram. It is a Concrete class; it contains general information
about design such as author, creation date, and so on. Following the BPMN
specification a business process diagram is made up of several Pools.
???. Process. This concept has been defined to contain the process design that is all
the BPMN elements that allow us to define different steps in the process execution
design. Process is a Concrete ontological class and has three ontological
subclasses of type ???Specialization.???1 AbstractProcess,.PrivateProcess,.and.
CollaborativeProcess. in order to meet the BPMN definition of Process.
???. Swimlane:.This concept has been defined in order to make a generalization
of Pool and Lane. Pool and Lane are concrete subclasses (of type ???specialization???)
of the abstract class Swimlane. The concept of Pool, following the
BPMN definition, allows us to define an actor (a person or/and a machine) of
the process.
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