A Pool may contain a Lane, Flow Object (defined below) or nothing.
The ontological class Lane meets the concept of Lane defined by BPMN
and is defined in order to allow the definition of a Lane within a Pool.
???. FlowObject. With regards to following the BPMN specification, the ontological
Abstract class FlowObject is defined as a superclass that contains three
subclasses: Activity, Events, and Gateway. The abstract class FlowObject is
linked to the concrete classes Activity, Events and Gateway with a ???Specialization???
relationship. Both Activity, Task, and Event have a subclass that allows
us to define the specific characteristics defined in BPMN specification. As an
example to define three different type of Event (Start, Intermediate, End) we
define three different subclasses of the class Event.
???. Artifact. With regards to following the BPMN specification, the ontological
class Artifact allows us to define information not tied to the process flow. Ontological
class Artifact (an Abstract class) contains three Concrete subclasses
Annotation, Data Object, and Group.
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