Architecture

In this display, the top graphic depicts the customer premise with a local exchange server and Active Directory. On the top right, the end user experience is illustrated both at home and on the go (anywhere access). Lastly, the bottom representation has three layers: the datacenter layer, the service delivery layer and the presentation layer. The Admin Console is used to add/delete users, provide tools for coexistence and migration, tools for Active Directory sync and the Sign-In Client is used for single sign-on.

Microsoft Online Services Architecture