Fuzzy Logic Methodology for the Comparison of Construction Firms

General contractors, private owners, and public agencies are often faced with a problem; how to evaluate bids from competing construction organizations with respect to important, but difficult to qualify variables other than the lowest price. The paper presents a methodology for comparing the qualifications and work capacity of construction firms using a fuzzy logic model. The paper discusses the process of choosing an appropriate family of parametric membership functions by which to define qualifications and capacity. The model provides a means by which general contractors, private owners, or public agencies can rank competing construction organizations on criteria other than the bid price for the work.