By Felix Kossak, Christa Illibauer, Verena Geist, Jan Kubovy, Christine Natschläger, Thomas Ziebermayr, Theodorich Kopetzky, Bernhard Freudenthaler, Klaus-Dieter Schewe
This ebook offers the main whole formal specification of the semantics of the enterprise method version and Notation 2.0 normal (BPMN) on hand so far, in a method that's simply comprehensible for a variety of readers – not just for specialists in formal tools, yet e.g. additionally for builders of modeling instruments, software program architects, or graduate scholars focusing on enterprise method management.
BPMN – issued by means of the thing administration crew – is a known ordinary for enterprise approach modeling. notwithstanding, significant drawbacks of BPMN comprise its constrained help for organizational modeling, its merely implicit expression of modalities, and its loss of built-in person interplay and knowledge modeling. extra, in lots of circumstances the syntactical and, particularly, semantic definitions of BPMN are faulty, incomplete or inconsistent. The booklet addresses concrete concerns in regards to the execution semantics of industrial strategies and gives a proper definition of BPMN method diagrams, that can function a valid foundation for additional extensions, i.e., within the type of horizontal refinements of the center language.
To this finish, the summary nation laptop (ASMs) technique is used to formalize the semantics of BPMN. ASMs have tested their worth in quite a few 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 type of development promotes extra consistency within the interpretation of complete types, in addition to genuine exchangeability of types among diversified instruments. within the outlook on the finish of the e-book, the authors finish with featuring extensions that deal with actor modeling (including an intuitive strategy to denote permissions and obligations), integration of user-centric perspectives, a polished communique notion, and information integration.
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Extra info for A Rigorous Semantics for BPMN 2.0 Process Diagrams
Note that several end events can lead to confusion and cause design errors; thus, a diagram should be graphically designed such that all end events are easily seen at first sight. Start and end events are special cases of events. Events can also occur within a process. For instance, the arrival of the ordered goods or the arrival of an invoice are events within a process; they neither start a new process instance nor do they terminate one. Such events are called intermediate events and are depicted by double-line circles (see “Delivery note” and “Invoice” in Fig.
7). Furthermore, the fact that instances in Ready or Active states should not be interrupted is also counter-intuitive considering the motivation we gave at the start of this section. We consider the quoted text to be erroneous and consider only final states as exemptions for interruption. The rule InterruptActivity performs all necessary steps if an interrupting event has occurred during the execution of an activity. It ignores interrupting events if the activity is in a final lifecycle state; otherwise, all running, non-interrupting event sub-processes and all active or ready activities are interrupted.
A justification concerning (in)completeness and certain additional assumptions with respect to the BPMN standard is given with each rule by reference to the respective location in the standard. Additional information regarding relations to the standard is given throughout the model. 0; • to provide a basis for identifying gaps, inconsistencies and practical problems of the BPMN standard and for adjusting the semantics in order to overcome the identified problems; and • to provide a basis for the implementation of workflow engines for different platforms between which models can be interchanged without the loss of semantics or information.