Which of the following is the CORRECT description of the Four Ps of Service
Design?
a) A four step process for the design of effective service management
b) A definition of the people and products required for successful design
c) A set of questions that should be asked when reviewing design specifications
d) The four major areas that need to be considered in the design of effective
service management

答案d，适用排除法。
原理可参考richard的解释，也可参考下图（SD 2.4.2 Scope）



另外有兴趣的朋友也可以对比ITIL V3和ITSS组成要素模型。
ITSS组成要素模型：PPTR（People、Process、Technology、Resource）