1. A system comprising: one or more devices, each of which comprise one or more domains supported by at least one platform, each domain comprising a configuration of computing resources executing on the at least one platform and each domain being configured to perform functions for an owner of the domain that may be located locally or remotely from the domain, wherein each domain may have a different owner, and wherein each owner may specify policies for operation of its domain as well as for operation of its domain in relation to the platform on which the domain resides and other domains; and a system-wide domain manager resident on one of the domains, the system-wide domain manager enforcing the policies of the domain on which it is resident, coordinating the enforcement of respective policies of the other domains in relation to the domain in which the system-wide domain manager resides, and coordinating the interaction among the other domains in accordance with their respective policies and the policies of the domain in which the system-wide domain manager resides.