| 摘要 |
A method for using the screen names of users are used to appropriately tailor a service for the users. If the service is a restricted service, then the screen name is used as the basis for deciding whether access should be granted to ensure that access is granted to a limited set of users. Alternatively, if the service is comprised of several component sub-services, and some of those sub-services are restricted, then the screen name is used as the basis for deciding whether access should be granted to the relevant sub-service.
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