All software systems, from enterprise data centers to small businesses and consumer-facing applications, must make access control decisions for protected data. IDtrust is a venue for the discussion of the complete access control process (authentication, authorization, provisioning and security decision workflow), addressing questions such as: "What are the authorization strategies that will succeed in the next decade?" "What technologies exist to address complex requirements today?" "What research is academia and industry pursuing to solve the problems likely to show up in the next few years?"

Identity as used here refers to not just the principal identifier, but also to attributes and claims.