Contractor selection for construction works by applying saw-g and topsis grey techniques; [Rangovų parinkimas statybos darbams atlikti taikant saw-g ir topsis grey skaičių technologijas]

Paper Details

Authors:

DOI: 10.3846/jbem.2010.03

Journal: Journal of Business Economics and Management

Year: 2010

Publisher: Vilnius Gedminas Technical University

Document Type: Article

Open Access: All Open Access; Gold Open Access

Cited by: 151

Abstract

The accuracy of performance measures in common multicriteria methods is usually assumed to be accurate. Grey theory is a new technique for performing prediction, relational analysis and decision-making in many areas. This paper presents applicability of grey theory techniques for defining the utility of an alternative. Proposed assessment model covers well known method of TOPSIS (Technique for Order Preference by Similar- ity to Ideal Solution), method with attributes values determined at intervals (TOPSIS-grey) and a new method of Simple Additive Weighting with Grey relations (SAW-G). A case study of the assessment of contractors' competitive ability was used to demonstrate the applicability and the effectiveness of the proposed approach. The results show that the methods of grey relations methodology can be implemented as an effective decision aid for tasks with uncertain data. © Vilnius Gediminas Technical University, 2010.

Keywords

Construction; Contractors; Decision-making; Grey numbers; Multicriteria; Saw; Saw-g; Topsis; Topsis grey

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