Contractor Selection for Construction Project, with the Use of Fuzzy Preference Relation

During the phase of investment planning, choice of contractor is one of the most important decisions. One of the methods for assessing competences of contractors applying for the contract is their pre-selection. In the article, author describes algorithm for choice (selection) of contractor. The algorithm is based on fuzzy preference relation. In mathematical point of view, it is based on ordering theory and fuzzy sets theory. The article provides an example of the algorithm used for selection of contractor for construction works. The choice was made basing on criteria such as: reputation, technical capabilities, financial situation and organizational skills.