| 摘要 |
A system and method for controlling use of program related element in a user system wherein a program related element includes at least one of a program, data or a combination of a program and data. An authorization key controlling access by the user system to the program related element is stored in a host facility, together with an associated access definition including a period of use definition defining a period in which the user system may access the program related element. Upon receiving a request for access to the program related element by a user system, and depending upon the requirements of the associated access definition, the host system communicate the authorization key and at least parts of the associated access definition to the user system. The user system, in turn, will respond to the authorization key and to the accompanying parts of the associated use definition by allowing the user system access to the program related element in conformance with the accompanying parts of the associated use definition.
|
