all of the following tools and techniques are helpful to acurately confirming customers needs except （）<br>A:questionnaires<br>B:prototyping approaches<br>C:fishbone diagrams<br>D:interviews

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

出自：信息系统项目管理师（高级）

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