Workflows in SharePoint

-SharePoint workflows are generally oriented around the SharePoint list data model.

-Workflows in SharePoint are built on the framework provided by Windows Workflow Foundation (WF). When a workflow is running in SharePoint, the WF runtime engine is hosted in the SharePoint process. The WF runtime engine loads and unloads workflow templates and provides sequencing and persistence for workflows. The persistence services are crucial because they enable workflows to remain active through discontinuous user sessions, through resets of the front-end web server, and even through reboots of the server.