[concern-users] evaluating con:cern
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From: frantisek k. <fra...@gm...> - 2008-11-29 12:22:28
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Hi, I'm evaluating OSBL and workflow engines in general. I have no experiences with workflow systems. I tried two engines and decided for jBPM. But I have some doubt about it. And especially after reading all the patterns from workflowpatterns.com, what is really good site. Why such easy things needs so much effort to realize (tokens, decisions, events... all the imperative way). Last week when reading Case Handling: A New Paradigm for Business Process Support by Wil M.P. van der Aalst I realized, that this is what we need. But is just a feeling I don't have any evidence. To gain evidence I must try a case handling system and model various situations, some which are easy to model in jBPM and hopefully stay easy to model in concern, and some which are hard to model in jBPM and will be easier to model in concern. This is what I found very useful, hopefully I understood it well: Flow can be data driven but you still have the causal realtionship between tasks. I like the idea that subject is the same as process instance in other workflow engines, which gave me power to make various queries with user defined process variables (not only default variables, such as process name, time created... I made it working in jBPM with user defined process variables as well but it was a lot of additional coding and several queries/subqueries are needed to do that job). My questions: 1.) Is there any working example of concern. I'm interested in something easy like http://docs.jboss.org/jbpm/v3/userguide/tutorial.html . Process definition, code and junit tests. Not too much architecture, because we have our own, and I want pluggable solution. Just to get familiar with process definitions, con:cern api and execution model. 2.) I downloaded osbl 1.0 and con:cept 1.1 and I can't open urlaub and riskmanagement examples in designer. Probably they are using different version of emf models. 3.) What are your experiences with con:cern so far? I have found some older pages, but that time you were only beginning. 4.) Is there any comprehensive documentation for all the model elements in con:cern language (preffered English but German is ok as well)? 5.) Can you point me to some interesting articles concernig case handling? The best with case handling and workflow examples. Thanks for help Fero |