A、初期 B、中期 C、末期 D、试运行或验收期信息系统的生命周期可以分为四个阶段：信息系统经常不可避免地会遇……

单项选择题你为了实现有效的时间表控制，你的项目小组必须对任何可能造成未来的问题的事情保持警觉为了实现这个目的，小组应该（）

A.参阅绩效报告
B.排除任何项目变更
C.不断修正时间表管理计划
D.评估项目进展

单项选择题setting redundant components in subsystem to handle with the risks brought by the defaults of original components,what kind of risk response strategy is this？（）

A、risk avoidance
B、risk acceptance
C、risk mitigation
D、contingency plan

单项选择题analyzing，tracing，prioritizing and agreeing on requirements and then controlling changes and communicating to relevant stakeholders. It is a（）process throughout a project. A requirement is a capability to which a project outcome（product or service）should conform.

A、persistent
B、continuing
C、permanent
D、continuous

单项选择题Requirements management is the process of （）

A、communicating
B、collecting
C、filing
D、documenting 

单项选择题all of the following tools and techniques are helpful to acurately confirming customers needs except （）

A、questionnaires
B、prototyping approaches
C、fishbone diagrams
D、interviews