BPMN and BPX part 2

BPMN and BPX part 2 - 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 2: Mastering the Notation Summary: A brief summary of the BPMN notation. BPMN describes process orchestration in terms of activities (tasks and subprocesses) connected by sequence flows. Branches, splits, and joins in the flow are modeled by various gateway types. Events specify how processes respond to signals received from external entities or other parts of the same process. Other parts of the notation are loosely specified and used to add business context only. Second of six parts. Author: Bruce Silver Company: Bruce Silver Associates Created on: 5 November 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. In the first installment of this series, we saw why BPMN is important to the Business Process Expert. In this part, we’ll look at the notation itself. In BPMN there are only three first-class diagram elements, or flow objects: Activity , a rounded rectangle, representing work performed in the process Gateway , a diamond, representing flow control logic, such as branching, splits, and joins Event , a circle, representing a signal that something has happened, either outside the process or inside. Each of these shapes has various subtypes indicated by an icon or symbol inside, or occasionally by border style. The color of a diagram element has no significance in BPMN. Sequence Flows These elements are connected in a process flow by a solid arrow called a sequence flow . A sequence flow from activity A to activity B does not signify some user-specified relationship between A and B. It signifies only one thing: After activity A completes, activity B starts, or is enabled to start. A sequence flow variant, called conditional sequence flow , and drawn with a mini-diamond on the tail, indicates that the transition from A to B is enabled only if a specified condition is met. But the more common variant, with no diamond on the tail, means the transition is immediate and unconditional.
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BPMN – Mastering the Notation © Bruce Silver Associates 2007 2 A B Figure 1. Sequence flow means when A ends, B starts. Activities Steps in the process are indicated by activities . BPMN defines two types of activities, task and subprocess. A task is an activity that has no component subpart structure of interest to the process model; it is atomic in that respect. A subprocess is an activity that has component structure of interest. BPMN allows the subprocess to be rendered either
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This note was uploaded on 02/20/2012 for the course MIST 5750 taught by Professor Bostrom during the Spring '09 term at UGA.

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BPMN and BPX part 2 - Bruce Silver Associates Independent...

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