Case Study on BIM and Value Engineering Integration for Construction Cost Control

Table 1

Scale values used in the judgment matrix of the AHP.

Scale	Meaning
1	The two comparative factors i and j are of the same importance
3	i factor is slightly more important than j factor
5	i factor is obviously more important than j factor
7	i factor is strongly more important than j factor
9	i factor is extremely more important than j factor
2, 4, 6, 8	The median value between the two adjacent judgments
Reciprocal	aij represents the importance ratio of factor i to factor j, and , which shows the importance ratio of factor j to factor i