Administrator Workflow: Software Updates End to End Workflow
http://technet.microsoft.com/en-ca/library/bb693528.aspx
Administrator Workflow: Configuring the Software Update Point In Mixed Mode Site
http://technet.microsoft.com/en-ca/library/bb632862.aspx
Administrator Workflow: Configuring the Software Update Point In Native Mode Site
http://technet.microsoft.com/en-ca/library/bb632481.aspx