【摘要】 主要介绍了基于客户／服务器模式下的管理信息系统中处理实时数据的一种有效方案．它是通过服务器查询数据是否有更新信息，并将数据的变化信息通知给客户，由此，客户可减小系统资源的开销费用，充分利用服务器的数据处理能力，增加MIS的实时性和准确性．本文同时探讨了在TCP／IP协议下，客户／服务器系统的通讯技术，以及客户端运用PowerBuilder和WINSOCKET如何实现DDE服务器．更多还原

【Abstract】 This paper introduces an effective scheme of processing real-time data in MIS based mode of Client/Server. This scheme inquires if the data are updated from the server and informs the clients the changing information. As a result, it only requires a small system resource, fully utilizes the ability of processing data of the server, and improves the accuracy and real-time of MIS. Finally, this paper also dicusses the communication technique of Client/Server system in the TCP/IP protocol, and the implemention of DDE server by POWERBUILDER and WINSOCKET in the client.更多还原