Management of requirement and its change is the base of the whole developing process of information system project and one of the critical success factors of the project.
需求及其变更管理是整个信息系统工程开发过程的基础，也是项目成功的关键因素之一。
In the coming 21 centery, there is a foreseeable change from a traditional data process to high speed information gathering , share and management in the whole world industries .
迎接21世纪，在世界的产业，以情报的集中整理，共有化、高速化为核心，有着很大的变化。
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