The DirectConnect server routes each client request for an access service to the appropriate access service library.
Directly – specify the exact name of the access service. If the access service is defined correctly, the DirectConnect server matches the request with the access service.
Using service name redirection – map your access service connections to allow client requests to be routed to assigned access services based on user profiles. This feature allows you to centrally manage client access to access services.
See Enterprise Connect Data Access Mainframe Connect Server Administration Guide > Service Name Redirection.