4장에서는 1단계 측정 지표 발굴 단계에 대해서 설명하고, 2단계 측정 모델 설계 단계장에서 상세히 기술하였다.
In Chapter 4, the first stage of excavation of dimension indicators was explained, as well as the second phase of dimension model design phase had been described in more detail.