Описание тега team-explorer

Team Explorer can be used to manage work that is assigned to you, your team, or your team projects, and to coordinate your efforts with other team members to develop a project. Team Explorer connects Visual Studio to team projects that were created on Visual Studio Team Foundation Server (TFS) or Visual Studio Online. You can manage source code, work items, and builds. Or, create a team project.

http://msdn.microsoft.com/en-us/library/hh500420.aspx