title: Visualization and simulation tools for Windows Workflow Foundation
body: <p>I'm looking for visualization/simulation tools for Windows Workflow Foundation, which can show how certain data moves down the workflow and gets manipulated until the end result is reached. This is a bit similar to some IBM Rational modeling tools for Websphere.</p>
  
  <p>Can someone recommend a product (preferably free, but commercial products are an option) and point me in the right direction?</p>