15f1c436_SharePoint_MCTS___MCPD___MCITP__Purpose
[Service] User Profile Service [Comments] Required for “High Trust” Provider Hosted Apps to work [Purpose] 
Manages the user profiles, creation of My Sites and SharePoint Social Features (and associated permissions and properties).
Martin Hatch - SharePoint Evangelist | SharePoint MCTS | MCPD | MCITP
Purpose