随着计算机技术、网络技术、通讯技术和Ｉｎｔｅｒｎｅｔ技术的发展和各行各业业务操作流程的自动化 ,企业内产生了数以几十或上百ＧＢ计的大量业务数据。这些数据和由此产生的信息是企业的财富。它如实的记录着企业运作的本质状况。但是面对如此海量的数据 ,迫使人们不断寻找 With the development of computer technology, network technology, communication technology and Internet technology as well as the automation of business operations in all walks of life, a large number of business data in dozens or hundreds of GB are generated in the enterprise. These data and the resulting information is the wealth of the business. It truthfully records the nature of the operation of the business. However, in the face of such huge amounts of data, people are forced to constantly look for it