Identity Servers issue and respond to requests for performing remote
operations. A local Identity Server receives a request to perform a
remote operation. The local Identity Server identifies and executes any
required local operations. After completing the local operations, the
local Identity Server forwards the remote request to a remote Identity
Server, which executes the remote operation. An Identity Server includes
a management service, management registry, and request handler. The
management service identifies and issues remote request to other servers.
The request handler receives remote requests from other servers. The
management registry maintains an index of function modules for performing
local operations.