CONTROL OF EXECUTION TIME OF TIME-DEPENDENT SERVICES BY DEFINING DIFFERENT TIME ZONES FOR THE SUBSCRIBER'S LOCATION, THE EXECUTION SERVER, AND THE SERVICE SUBSCRIPTION INFORMATION

摘要

A data layered architecture (DLA) system includes a front end (FE) server and a common directory (CD). The FE server includes a processing unit which defines an FE time zone (FETZ) based on the FE server's geographical location and that defines a current date and time of the FETZ. The FE server includes a network interfacing unit which obtains from the CD through the network a subscriber default time zone (SDTZ), a subscriber service time zone (SSTZ), a service activation date (SAD) and a service activation time (SAT). The processing unit selects as service time zone (STZ) for executing the service the SSTZ, if a valid SSTZ exists, or the SDTZ, if a valid SSTZ does not exist, or the FETZ, if a valid SDTZ does not exist. Furthermore, the processing unit only executes the service after checking that the SAD and SAT of the STZ correspond to the current date and time of the FETZ.