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Windows Workflow Foundation David Burela Senior Developer, Readify

Windows Workflow Foundation David Burela Senior Developer, Readify. What is WF?. Stands for Windows Workflow Foundation (not WWF….) One of the 4 pillars of .NET 3.0 Way to declaratively create “workflows” that can be hosted in applications. Workflow types. Sequential

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Windows Workflow Foundation David Burela Senior Developer, Readify

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  1. Windows Workflow Foundation David Burela Senior Developer, Readify

  2. What is WF? • Stands for Windows Workflow Foundation (not WWF….) • One of the 4 pillars of .NET 3.0 • Way to declaratively create “workflows” that can be hosted in applications

  3. Workflow types • Sequential • Starts at the top. Flows downwards • Production line • State machine • Goes from one “state” to another • Document management system

  4. Hosting WF • Workflows can be hosted in any .Net app • Console, winforms, WPF, ASP.Net • Integration into other Microsoft tech • Sharepoint • Biztalk • WCF

  5. Demo Hamburger Construction

  6. Scheduler service • DefaultWorkflowSchedulerService • Asynchronous scheduling of workflow instances • (Client hosting) • ManualWorkflowScheduler Service • Synchronous scheduling • (Server hosting) • Choosing scheduler service is important

  7. Persistence Service • Persistent Services are used to persist state about a Workflow instance • The Workflow runtime engine determines when persistence should occur • Protects against power loss, etc. • Reduces memory footprint

  8. Versioning • Massive pain point • Persistence problems • Changing code in an activity may be fine • Restructuring will come up against problems • Research on the web!

  9. A Readify Developer Network session By David Burela, Senior Developer, Readify Email Address: David.Burela@readify.net Resources on Blog: http://DavidBurela.wordpress.com

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