Description: The device management system uses a three-tier architecture design idea, the interface and business logic separate from the interface is responsible only for show, while the business logic responsible for the realization of business processes. In the device management system, RoomManageForm room is responsible for the management of the interface display, and specific room management from RoomManage to be realized. The merit of this is that business logic with the interface separation, cheaper management, ease of expansion, the program ideas, a clear structure.
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