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• Windows Workflow Foundation
• Workflow & BPM

• Arbitrary loops (GOTO activities) in sequential workflows

  The following BPMN diagram presents a situation where there is an arbitrary loop with two entry points (one before Task A and one before Task B) and one exit point (after Task C). In situations like that it is not possible to implement this loop with a WhileActivity, because the WhileActivity works only with well-structured [...] Read More... Posted Tuesday, September 05, 2006 1:42 PM from Bits & Notes | (Comments Off) Filed under: Windows Workflow Foundation, BPMN

• Marlon Dumas on BPMN-BPEL round-trip engineering

  This is a copy of a very interesting answer of Marlon Dumas in the Workflow Research Forums: The approach taken in eClarus is promising. However, I am afraid that this approach will break when it gets to BPMN processes where multiple instances of the same activity occur in parallel. Consider for example Figure [...] Read More... Posted Tuesday, July 11, 2006 11:19 AM from Bits & Notes | (Comments Off) Filed under: Workflow & BPM, BPMN

• BPMN-WF Mapping: The GOTO problem

  I expected that the transformation of a BPMN diagram to a WF workflow would be accomplished by mapping each BPMN Process to a Sequential Workflow. But, there is a structural difference between the BPMN diagram and the Sequential Workflow. The difference is that the Sequential Workflow is block-structured (i.e. all paths from a split or [...] Read More... Posted Tuesday, June 27, 2006 4:24 PM from Bits & Notes | (Comments Off) Filed under: Windows Workflow Foundation, BPMN

• Mapping BPMN Graphical Objects to WF Activities

  (Draft, to-be-updated post) Activities BPMN Windows Workflow Foundation Process   Sub-Process Maps to any CompositeActivity. Loop Sub-Process Maps to a WhileActivity. Multiple Instance Sub-Process Maps to a ReplicatorActivity. Ad-Hoc Sub-Process   Compensation Sub-Process Maps to a CompensateHandlerActivity. Task Maps to any atomic Activity that has only implementation semantics (e.g. CodeActivity or InvokeWebServiceActivity) Events BPMN Windows Workflow Foundation Start Event [None]   Start [...] Read More... Posted Tuesday, June 20, 2006 5:26 AM from Bits & Notes | (Comments Off) Filed under: Windows Workflow Foundation, BPMN

• BPM Think Tank: BPMN Technology Roundtable

  Sandy Kemsley blogs her notes for the BPMN Technology Roundtable of the BPM Think Tank 2006. Two important quotes: OMG is not recommending XPDL for serialization of BPMN, but recommends the use of BPDM. [There are] some ideas about defining aspects of a process, such as security, escalation and exception handling, in order to simplify the primary [...] Read More... Posted Thursday, June 01, 2006 9:44 PM from Bits & Notes | (Comments Off) Filed under: Workflow & BPM, BPMN