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# Wednesday, April 05, 2006

Session D303 - WinFX : Workflow Foundation

Probably the most interesting session of the day...

By introducing a new framework such as Windows Workflow Foundation in .NET 2.0, Microsoft is offering a very nice way to design and modelize business and human workflows. Altough Nicolas Clerc talked about the possibility of the use of BizTalk server to build human workflows which I really doubt because there is simply no possibility to build a state machine with it, I found this presentation really interesting.

The first demo he showed us was the creation and the instanciation of a workflow in about 10 lines of code. He showed the possibility to create composite activities as we already do with ASP.NET controls.

An example of persisting a workflow instance in a database with an examination of the content of the table was demoed as well. Simply do a ".Save()" on your workflow and....that's it !!!

On the other hand, it is also possible to define a workflow using XML. Indeed, Microsoft developer XOML to modelize workflows and, after a little discussion with Nicolas, it would be possible to change a workflow definition at the run-time. But, in the meanwhile, when a workflow is designed, it is compiled by the workflow compiler (wfc.exe) and then compiled by the C# compiler as well. Then, this generates a dll. To run a workflow, it needs a host which can be an exe or any other type of application.


Wednesday, April 05, 2006 12:00:58 PM (GMT Daylight Time, UTC+01:00)  #    Comments [0] -
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