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BPMN and BPX part 4

BPMN and BPX part 4 - Bruce Silver Associates Independent...

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Bruce Silver Associates Independent Expertise in BPM Bruce Silver Associates BPMS Watch www.brsilver.com/wordpress B P M N T r a i n g www.bpmessentials.com/ 500 Bear Valley Road, Aptos CA 95003 Tel: 831.685.8803 Fax: 831.603.3424 E-mail: [email protected] BPMN and the Business Process Expert, Part 4: Mastering BPMN Events Summary: The ability to describe event-triggered behavior directly in the diagram separates BPMN from traditional modeling notations. An event can start a process, resume a waiting process, or abort a process activity and redirect the flow. The BPMN spec describes many different event types, but learning just a few patterns is all you really need. Fourth of six parts. Author: Bruce Silver Company: Bruce Silver Associates Created on: 3 December 2007 Author Bio Dr Bruce Silver is an independent industry analyst and consultant focused on business process management software. He provides training on process modeling with BPMN through BPMessentials.com , the BPM Institute , and Gartner conferences, and is the author of The BPMS Report series of product evaluations available from the BPM Institute. If you had to name the one thing that sets BPMN apart from traditional process modeling notations, it would be events . That is to say BPMN provides a logically consistent notation for representing event-triggered behavior directly in the diagram. BPMN lets you show, for example, that a process is started by a particular event, or is waiting someplace for an event, or is redirected from its normal flow to a special event-triggered exception flow. BPMN also lets you show how one process interacts with other processes, both internal and external, via events, and even how one part of a process can signal to another part of the same process using events. This article will show you how to use events correctly and effectively. 1 In BPMN, an event is a signal that something happened . It is not assigned to a resource, and it does not perform work – unless you consider sending and listening for signals “work.” In the notation, the event symbol – always a circle – does not represent the implementation of that signal, how it was generated or received, but rather the interaction of that signal with the process . Not all modeling tools that claim to be BPMN-based support events. While there is nothing in the BPMN spec that says a tool must support events, let’s just say that tools that don’t are leaving out the good stuff. 1 The notation for a few event types will change a bit in BPMN 1.1. Except for discussion of the Signal event, new in BPMN 1.1, the graphics in this article use the BPMN 1.0 notation. However, where the semantics of an event are clarified in BPMN 1.1, we use the newer interpretation.
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BPMN – Mastering BPMN Events © Bruce Silver Associates 2007 2 BPMN 1.0 defines a wide variety of event trigger types , distinguished by their icons, and if your BPMN tool is able to make the model executable, it is extremely unlikely to support
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BPMN and BPX part 4 - Bruce Silver Associates Independent...

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