By Felix Kossak, Christa Illibauer, Verena Geist, Jan Kubovy, Christine Natschläger, Thomas Ziebermayr, Theodorich Kopetzky, Bernhard Freudenthaler, Klaus-Dieter Schewe
This booklet offers the main whole formal specification of the semantics of the company method version and Notation 2.0 commonplace (BPMN) on hand thus far, in a method that's simply comprehensible for a variety of readers – not just for specialists in formal equipment, yet e.g. additionally for builders of modeling instruments, software program architects, or graduate scholars focusing on company strategy management.
BPMN – issued through the item administration crew – is a customary regular for company procedure modeling. although, significant drawbacks of BPMN comprise its restricted help for organizational modeling, its in simple terms implicit expression of modalities, and its loss of built-in person interplay and information modeling. additional, in lots of instances the syntactical and, particularly, semantic definitions of BPMN are erroneous, incomplete or inconsistent. The e-book addresses concrete concerns about the execution semantics of industrial tactics and gives a proper definition of BPMN approach diagrams, that may function a valid foundation for extra extensions, i.e., within the type of horizontal refinements of the middle language.
To this finish, the summary country desktop (ASMs) approach is used to formalize the semantics of BPMN. ASMs have tested their price in a variety of domain names, e.g. specifying the semantics of programming or modeling languages, verifying the specification of the Java digital computing device, or formalizing the ITIL switch administration process.
This form of development promotes extra consistency within the interpretation of complete types, in addition to actual exchangeability of types among diverse instruments. within the outlook on the finish of the publication, the authors finish with featuring extensions that tackle actor modeling (including an intuitive solution to denote permissions and obligations), integration of user-centric perspectives, a sophisticated verbal exchange notion, and knowledge integration.
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Extra info for A Rigorous Semantics for BPMN 2.0 Process Diagrams
We only create instances of activities and processes and not of other flow nodes. This also conforms with the BPMN standard, where instance attributes are defined for these two elements only. (Additionally, the BPMN standard defines the attribute waitingForStart for the complex gateway, which also defines a simple lifecycle and which is reflected in our model as a respective controlled function with an instance parameter—see Sect. 1 Creating Instances The rule CreateInstance creates a new instance of a top-level process or a flow node (activity).
To complete an initial clarification of words and notions, a few more words on processes may be helpful. The BPMN standard distinguishes between processes and sub-processes. Thereby a sub-process is not simply a special type of process. And while both have FlowElementsContainer as a superclass, class Process is also a CallableElement while SubProcess is not. Moreover, SubProcess is an Activity while Process is not. In our model, however, we try to stress the common properties not only of both processes and sub-processes but of processes and activities in general.
Moreover, if the activity is a sub-process, it can itself have a FlowElementsContainer (see [95, p. 151]). g. [95, p. 2 Framework 41 GlobalTask Process CallableElement RootElement FlowElementsContainer 1 * FlowElement BaseElement FlowNode Activity Event Gateway Fig. 5 Excerpt from the process class diagram (adapted from ) Fig. 0 Process Diagrams • They share a lifecycle model. • A sub-process, which is a type of activity, has internal flow nodes and sequence flows just like a process. ) • The instance and token concept is the same; also activities may have start events, and their instances, once started, are basically independent from their respective parent instances (even though they have to carry information about their parent instances).
A Rigorous Semantics for BPMN 2.0 Process Diagrams by Felix Kossak, Christa Illibauer, Verena Geist, Jan Kubovy, Christine Natschläger, Thomas Ziebermayr, Theodorich Kopetzky, Bernhard Freudenthaler, Klaus-Dieter Schewe