(From Which Style of Workflow When?)
Windows Workflow Foundation supports three basic styles of workflow: Sequential, State Machine and Data-Driven.
Sequential:
I want Fred to review a document, then Joe to approve it, and finally I want to send it to my customer.
This is an obvious Sequential style workflow. To implement it, I
create a Sequential Workflow project, add a sequence of
Activities
which ask Fred to review, Joe to approve, and finally myself to send
the document – and I’m done.
State Machine:
Why do we need it?