Online WhatIf is a reimplementation of What if? 2.0, originally conceived and written by Dick Klosterman. This is the WhatIf scenario module, which provides a RESTful backend to all functionality, and is intended to be used with Online WhatIf UI, a web front end and WorkbenchAuth, a simple authentication system.
For more information, see the AURIN Project Page.
You can try out AURIN's Online WhatIf instance, contact AURIN for an account. If you'd like to set up your own Online WhatIf server, please see the installation instructions.