Simulation-Based Fuzzy Logic Approach to Assessing the Effect of Project Quality Management on Construction Performance

Table 6

Example of the calculations for the development of membership functions.

Opinions for no formal approach	Elements within the subjective scale (in %)
	0	10	20	30	40	50	60	70	80	90	100%
Interviewee A	x	x	x
Interviewee B	x	x	x
Interviewee C	x	x	x	x
Interviewee D	x	x
Interviewee E	x	x	x	x
Interviewee F	x	x	x
Interviewee G	x	x
Interviewee H	x	x	x	x
Sum of opinions	8	8	6	3	0	0	0	0	0	0	0
Standardized frequency	1.0	1.0	0.75	0.38	0.00	0.00	0.0	0.0	0.0	0.0	0.0