CAN-09: User Management

Executive Summary: 
A researcher needs to register with XSEDE, maintain an XSEDE user profile, and define groups of users who are associated with his/her research on XSEDE systems.
User Importance Summary: 
XSEDE needs a way to identify individuals who interact with the system and to keep track of information about each individual. XSEDE users need to be able to tell XSEDE about the other individuals with whom they work. This is an enabling function for XSEDE: it is expected to enable features throughout the entire XSEDE system.
Target Communities and Sizes: 
All XSEDE users, including those who do not currently have allocations - (10,000 < N < 100,000)