Workflow Markup Overview
.NET Framework 3.5
Workflow markup, which is based on extensible Application Markup Language (XAML), enables developers and designers to model business logic declaratively and separate it from lower-level implementation details that are modeled by code-beside files. Because workflows can be modeled declaratively, it is possible to activate a workflow by directly loading a workflow markup file into the workflow runtime engine at run time.
For more information about workflow markup, see Using Workflow Markup.
