一个好的变更控制过程,给项目风险承担着提供了正式的建议变更机制。如下图所示的需求变更管理过程中,①②③处对应的内容应分别是( )。
- A.问题分析与变更描述、变更分析与成本计算、变更实现
- B.变更描述与成本计算、变更分析、变更实现
- C.问题分析与变更分析、成本计算、变更实现
- D.变更描述、变更分析与变更实现、成本计算
正确答案及解析
正确答案
解析
在需求管理过程中需求的变更是受严格管控的,其流程为:
1、问题分析和变更描述。这是识别和分析需求问题或者一份明确的变更提议,以检查它的有效性,从而产生一个更明确的需求变更提议。
2、变更分析和成本计算。使用可追溯性信息和系统需求的一般知识,对需求变更提议进行影响分析和评估。变更成本计算应该包括对需求文档的修改、系统修改的设计和实现的成本。一旦分析完成并且确认,应该进行是否执行这一变更的决策。
3、变更实现。这要求需求文档和系统设计以及实现都要同时修改。如果先对系统的程序做变更,然后再修改需求文档,这几乎不可避免地会出现需求文档和程序的不一致。
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