Patent ID: 8589442

Claim:
A method comprising: under control of one or more computing devices comprising one or more processors: receiving a request for a first service, the request including user identifier (ID) information associated with a second service, the user ID information including authentication information of a user; verifying the request based on the user ID information and user ID mapping data associated with the first service and the second service, the user ID mapping data including a user information attribute and a privilege attribute for the user, the user information attribute including account information associated with the first service and the second service, the privilege attribute indicating a first resource access privilege of the user for accessing the first service during a session that is established using user ID information associated with the first service of the user; and in response to the verifying, establishing one session for a computing device associated with the user to access the first service based on a second resource access privilege assigned to the user for accessing the first service during the one session, the first resource access privilege being higher than the second resource access privilege, wherein user administration of the first service and the second service is maintained by a first server of the first service and a second server of the second service, and the second resource access privilege is assigned by the second service to restrict the user to perform a transaction related to the first service.