1. A method for configuring a data center that has a plurality of geographically distributed facilities that provide network services to a plurality of different company subscribers, the method comprising: providing a user interface via computer network, wherein the user interface presents an administrative hierarchy of topology objects, wherein the topology objects include a global data center object that represents the data center as a whole, wherein the topology objects include a set of facility objects that represent the distributed facilities of the data center, wherein the topology objects include a set of subscriber objects that represent the different company subscribers, wherein the topology objects include a set of device objects that represent physical devices located at the facilities of the data center; receiving configuration input through the user interface from an administrator; and launching, in response to the configuration input, a service application that operates within a context of one of the topology objects in the administrative management hierarchy.