Abstract
The goal of this paper is to compare quality assurance in different contractor contracts by means of multi-attribute decision-making (MADM) and to select the best option. For this investigation, the authors have developed the complex of quality evaluation criteria. During experimental evaluation, the significance of criteria was determined and the expert evaluation of template construction contracts was performed. The complex comparison of contractor contracts was carried out by means of the following MADM methods: Simple Additive Weighting (SAW), Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS), Complex Proportional Assessment (COPRAS) as well as the new Evaluation Based on Distance from Average Solution (EDAS). MADM. method. To determine the weights of criteria, with due consideration of uncertainty of expert evaluation, the Fuzzy Analytic Hierarchy Process (FAHP) method was applied. Evaluation of the data structure was performed by methods for the determination of objective weights: an entropy method and new criteria impact loss (CILOS) and integrated determination of objective criteria weights (IDOCRIW) methods. Expert subjective and objective weights were combined into aggregate weights. Based on the investigation performed, the authors make conclusions regarding possibilities for improving quality assurance in contractor contracts.
Highlights
The contractor contract process is a multistage procedure involving a large number of stakeholders
Simple Additive Weighting (SAW), Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) and Complex Proportional Assessment (COPRAS) multi-attribute decision-making (MADM) methods (Ginevičius & Podviezko, 2013; Hwang & Yoon, 1981; Podvezko, 2011; Podviezko & Podvezko, 2014; Vinogradova & Kliukas, 2015; Zavadskas, Kaklauskas, & Šarka, 1994) as well as the new Evaluation Based on Distance from Average Solution (EDAS) method (Keshavarz Ghorabaee, Zavadskas, Olfat, & Turskis, 2015) were applied in this paper for comparison of different contracts and determination of the best alternative
The basic legal document establishing the relationship between the customer and the contractor is a construction contract
Summary
The contractor contract process is a multistage procedure involving a large number of stakeholders. This results in the formation of a contractual relationship network, which has to pass a large number of multistage decisions that affect the implementation of the contractor contract process and the economic success and behaviour of stakeholders seeking to avoid risks and possible losses. The contractor contract is a main legal document that sets forth a relationship between a customer and a contractor. It is one of principal documents regulating the contractor contract process. That is exactly why many authors examine a contractor contract via different aspects. Liu, Huo, and Liao (2015) established an indicator system of contractor selection on largescale construction projects, and two-stage partial least square path modelling combined with the maximisation of deviations principle was proposed as an aggregation approach for performance evaluation. Kirk (2009) focuses on standards for valuation of inventories and construct contracts; risk ranking and comparison of key risk factors on target cost contracts or guaranteed maximum price contracts was analysed by Chan, Chan, Lam, Yeung, and Chan (2011). Kei, On, Yiu, and Pang (2008) presented a study of how trust can be practised in construction contracting
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
