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The Businesses Process Modeling notation (BPMN) is a graphic specification language in the economical informatics. It makes symbols available, with which technical and computer science specialists can model business processes.
The BPMN was compiled 2002 by Stephen A. White, Mitarbeiter of IBM, and published by the Businesses Process management initiative (BPMI), an organization, which had defined standards within the range business process modelling. She was transferred in June 2005 by the Object management Group (OMG) to the further care. The BPMI fused simultaneously with the OMG, so that the BPMN applied similarly as the Unified Modeling LANGUAGE (UML) starting from this time as standard of the OMG.
As the name says, the emphasis of the BPMN is on notation, i.e., on the diagram of business processes. The standard document to the BPMN defines also semantics, i.e., the meaning, the symbols, but it attaches to this aspect fewer weight and attaches no importance to formal definitions. Over a standardized format for storage and the exchange of diagrams of the BPMN the specification is silent itself completely out.
Diagrams in the BPMN are called Business Process Diagram (BPD). So simply these by humans to be drawn or interpreted can do, so heavily fall it computers to take over the graphic notation directly for the execution business process. By machine readable Prozessbescheibungen is therefore mostly into so mentioned for business processes held, for example in the Businesses Process Execution LANGUAGE (BPEL) or in the XML Process definition LANGUAGE (XPDL), both XML applications for the description of processes. BPMN, BPEL and XPDL complement each other mutually, as BPEL and XPDL are used, where BPMN exhibits gaps. Thus the BPMN standard defines, how a BPMN diagram is translated into BPEL, so that the described processes can be implemented by a computer. A similar translation defines the Workflow management Coalition (WfMC) for BPMN and XPDL. Illustrations on further languages, like for example on ebXML Businesses Process Specification pattern, progressed planned however still less far.
The graphic elements of the BPMN divided in
We use here the English names for the notation elements of the BPMN. Until 2006 there were no generally accepted German translations.
A Activity describes a task, which is to be settled by the business process. It is represented as rectangle with rounded off corners. An elementary Activity is called task, more complex Activities than Subprocess is designated. They differ in the notation by a +-symbol. Subprocesses can be represented in collapsed or expanded condition. A gateway represents a decision point, or one point, at which different gathers. He is drawn as rhombus. Depending upon symbol inside the rhombus it stands for an AND, a OR, a XOR or a Event based gateway. A Event is something, which can occur during a business process, for example the arrival of a letter, reaching a certain date or the occurrence of an exceptional case. Events are divided according to two classifications:
Sequence flows connect Activites, gateways and Events. They represent, in which sequence Activities are implemented. A Conditional flow is gone through only then, if a certain condition is true, a default flow only, if no other Sequence will go through flow can. A Message flow indicates that two elements in a Business exchange Process diagram messages. Message flows connect flow Objects or pool with other flow Objects or pool. A Message flow must connect always two pools, either directly or by linking a flow Objects in a pool with a flow Object in the other one.
A pool represents a Participant in a Workflow, i.e. a user and/or a user role or a system. A Lane is a partitioning pool.
Text a list of new publications is a comment, which can be assigned element of a business process.
DATA a Object represents artifact, which the business process works on. With DATA Objects can be represented both electronic objects and documents or data records, and physical objects such as rolls or books.
A Group an aid is, in order to visually summarize elements business process. It is not to confound with a Sub Process.
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