The first of these, the Presentation Layer, is responsible for user interaction and life-cycle management of the hosted widgets. 最上面的是表现层(PresentationLayer),负责用户交互与宿主部件的生命周期管理。
In this thesis, user interaction, data management, COM as well as the information interchange technology between the super ordinate supervision machine and the PLC controls to the lower were involved, and the optimization schemes in communication among many types of equipment were discussed. 其中涉及到人机交互、数据管理、COM技术以及上位监控机对下位PLC进行控制的信息交换技术,并且讨论了多设备通信中的优化方案。
Various modules have independent functions, so the user can arrange the interaction among modules on demand reasonably, at the same time scalability of the entire media materials management system is greatly improved. 各模块都能够具有独立的功能,用户可以根据需求合理安排模块之间的功能交互,同时大大的提高了整个媒体资料管理系统的扩展能力。