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

Table 2

Sample of inference rules for analyzing the effect of work conditions on the excavation activity.

𝑄	𝐹	𝐶	𝑁	𝐷
Very poor	Unusual	Very severe	Very large	Large
Poor	Often	Severe	Large	Large
Average	Often	Medium	Medium	Medium
Good	Often	Mild	Small	Small
Very good	Unusual	Very mild	Small	Small

Note. 𝑄: quality level of the project requirements, 𝐹: frequency of occurrence, 𝐶: adverse consequences, 𝑁: number of disruptions, and 𝐷: duration of delays.