http://developers.de/blogs/damir_dobric/archive/2013/06/06/workflow-activation-in-sharepoint-workflow-manager.aspxIf you want to implement the long running business process or in other words to automate the business process, the Windows Workflow Foundation is definitely great choice. In addition you might probably want to use the host like AppFabric and WorkflowenCommunityServer 2008 SP1 (Build: 30619.63)