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随着企业的持续改革和信息技术不断发展,信息系统也相应倍增。据资料调查表明,全球前1000家企业中,每家企业平均有14个数据库和40多个应用系统,多者则达数百个数据库和数百个应用系统。新老系统的并存,异构现象的突出,多个系统数据间的快速交换,系统整合问题也就越来越重要。
With the continuous reform of enterprises and the continuous development of information technology, the information system has correspondingly doubled. According to the data survey, each of the top 1000 companies in the world has an average of 14 databases and more than 40 application systems, while most of them have hundreds of databases and hundreds of application systems. The coexistence of new and old systems, heterogeneous phenomenon prominence, the rapid exchange of multiple system data, the problem of system integration is also more and more important.