This document discusses WMG's use of Cloud Foundry and UAA for authorization across multiple data centers. Key points include: - WMG uses Cloud Foundry and UAA for 100% of its development and to provide single sign-on across all apps and services. - UAA is used for authorization rather than authentication and is integrated with Active Directory. - A multi-data center architecture with Cassandra allows each data center to run independently while functioning as a single system. This improves functionality, load balancing, and failover. - Cloud Foundry and BOSH are used to deploy apps and services across separate Cloud Foundries with network separation between front-end apps and backend services.