系统集成的意思是,从具体对象着手,选择各个适当的计算机硬件设备,然后从全局来分析项目,对总体方案进行论证,确定体系结构,另外还从价格/性能比进行评价,合理组合软/硬件,用有关接口联成系统,从而使总体性能指标达到最优。 世界各国的许多厂家,即使如IBM、DEC等大厂家,无论从产品的技术指标,还是从产品的适应性方面,也都不能面面俱到,独揽天下。各家产品虽各有所长,价格/性能比高,但研究和开发的目标单一。如过程控制系统用的DCS(集散系统)系统,都是各厂家自行开发,开发费用极高,特别是操作站所用的软件也是自行开发,每台操作站的价格都要达到几万甚至十几万美元,这对于发展中国家的一些技术 The meaning of system integration is to start from the specific object, select the appropriate computer hardware and equipment, and then from the overall analysis of the project to demonstrate the overall program to determine the architecture, but also from the price / performance ratio to evaluate the reasonable combination of soft / Hardware, with the relevant interface into the system, so that the overall performance index to achieve the best. Many manufacturers in many countries in the world, even big manufacturers such as IBM and DEC, can not cover everything from the technical specifications of products and the adaptability of products. Although each product has its own strengths, price / performance ratio, but the research and development of a single goal. Such as process control system DCS (Distributed Systems) systems are all manufacturers to develop their own, the high cost of development, especially the operating station software is also used to develop, each operating station prices have reached tens of thousands or even a dozen Thousands of dollars, which for some technology in developing countries