UGC or User Generated Content is the name of an optional module added to SDL Tridion 2011 Service Pack 1.
The UGC module (also named "Community Builder") adds the following functionalities to SDL Tridion:
- Comments and ratings tab added to Pages & Components where users can see existing comments and ratings
- A dashboard view showing the number of comments & ratings posted by users on a timeline
- A series of tools to managed comments (Moderator tools)
- A "batch" update to the Content Delivery Web Service (OData) allowing implementers to write comments to the UGC database.