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Programming Windows Workflow Foundation: Practical WF Techniques and Examples using XAML and C# by K. Scott Allen

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Summary

In this chapter, we've covered conditions and rules in Windows Workflow. There are several activities in WF featuring conditional logic, including the powerful ConditionedActivityGroup. The purpose of the Windows Workflow Policy activity is to execute sets of rules. These rules contain declarative knowledge, and we can prioritize rules and use forward chaining execution semantics. By writing out our business knowledge in declarative statements instead of in procedural code, we gain a great deal of flexibility. We can track and trace rules, and update rule sets dynamically. Windows Workflow is a capable rules engine.

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