SGW-01: Acquire credentials that allow use of community resources

Executive Summary: 
A science gateway developer needs to enable a gateway to acquire credentials that allow the gateway to use community resources and/or services. A community resource is a resource provided to the community by a service provider (e.g., a compute cluster, a storage system). A community service is a service that adds value to the community’s resources (e.g., single sign-on, data transfer, user support).
User Importance Summary: 
Science gateways are an important way to broaden the reach of XSEDE's services to a larger number of researchers. Science gateways offer important services to researchers who don't have their own personal XSEDE allocations.
Target Communities and Sizes: 
Science gateway developers - 100 < N < 1,000 Application developers - 100 < N < 1,000 Science gateway users -100,000 < N < 1,000,000