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。
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.
接收工程师在工程发布系统中的指令，在物料系统中进行操作，如实反映变更的信息（零件级别、用量，结构等）。
Receiving engineering change information and operating accordingly in material management system to reflect the change information (part level/usage/structure, etc).
运用现代信息经济学的信息不对称理论分析了建设项目主体之间的信息不对称现象及其对工程变更风险的影响。
Based on modern information economics, dissymmetry information phenomenon between main bodies of project and its influences on engineering change risks are analyzed.
当前的信息工程监理忽视了需求管理的必要性，在信息工程监理中主要做好系统分析、文档审核、需求变更的管理等工作。
The task expatiates the importance of the requirement management, and the job tasks of the system analysis, the document auditing and the requirement changing.
当前的信息工程监理忽视了需求管理的必要性，在信息工程监理中主要做好系统分析、文档审核、需求变更的管理等工作。
The task expatiates the importance of the requirement management, and the job tasks of the system analysis, the document auditing and the requirement changing.
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