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到系统更新改造、功能扩展、甚至报废重建等情况，应该在信息系统建设的（）考虑到系统消亡的条件和时机

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

单项选择题all of the following are function of crm system except （）

A、automation procurement
B、automation sales
C、automation marketing
D、automation customer service