Improving qualifications-based selection by use of the fuzzy Delphi method

Manoliadis, OG; Pantouvakis, J-P; Christodoulou, S

dc.contributor.author	Manoliadis, OG	en
dc.contributor.author	Pantouvakis, J-P	en
dc.contributor.author	Christodoulou, S	en
dc.date.accessioned	2014-03-01T01:58:44Z
dc.date.available	2014-03-01T01:58:44Z
dc.date.issued	2009	en
dc.identifier.issn	01446193	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/28711
dc.subject	Decision making	en
dc.subject	Delphi method	en
dc.subject	Design-build	en
dc.subject	Fuzzy logic	en
dc.subject	Qualifications-based selection	en
dc.subject.other	Competitive bidding	en
dc.subject.other	Decision factors	en
dc.subject.other	Delphi method	en
dc.subject.other	Design-build	en
dc.subject.other	Design-build projects	en
dc.subject.other	Evaluation methodologies	en
dc.subject.other	Evaluation process	en
dc.subject.other	Fuzzy Delphi Method	en
dc.subject.other	Procurement methods	en
dc.subject.other	Professional engineerings	en
dc.subject.other	Professional qualifications	en
dc.subject.other	Project contracts	en
dc.subject.other	Project parameters	en
dc.subject.other	Project team	en
dc.subject.other	Qualifications-based selection	en
dc.subject.other	Selection criteria	en
dc.subject.other	Design	en
dc.subject.other	Evolutionary algorithms	en
dc.subject.other	Fuzzy logic	en
dc.subject.other	Fuzzy sets	en
dc.subject.other	Model buildings	en
dc.subject.other	Technological forecasting	en
dc.subject.other	Decision making	en
dc.subject.other	competitiveness	en
dc.subject.other	decision making	en
dc.subject.other	Delphi analysis	en
dc.subject.other	design	en
dc.subject.other	fuzzy mathematics	en
dc.subject.other	parameterization	en
dc.subject.other	project assessment	en
dc.subject.other	project management	en
dc.title	Improving qualifications-based selection by use of the fuzzy Delphi method	en
heal.type	journalArticle	en
heal.identifier.primary	10.1080/01446190902758993	en
heal.identifier.secondary	http://dx.doi.org/10.1080/01446190902758993	en
heal.publicationDate	2009	en
heal.abstract	Among prevailing contract-awarding paradigms, the qualifications-based selection (QBS) method offers awarding agencies a substantial level of flexibility and multifactored decision-making capability over traditional cost-based paradigms (such as competitive bidding). QBS is a process used by owners to select proposers to whom they can award a project contract, based on the proposers' professional qualifications in relation to the specific project parameters. Further to being very suitable for the selection of professional engineering design services, QBS can also be applied for the selection of contractors involved in specialized construction or design-build projects. In such cases, the procurement method and the selection criteria used are critical decisions involving several key project team members and decision factors, the formulation of which requires complex evaluation methodologies. Within this context, a process is proposed by which the traditional QBS method can be improved via the utilization of a fuzzy Delphi method (FDM), a cross-mutation of the traditional Delphi method (DM) and fuzzy logic (FL). The method utilizes 'expert' appraisals to identify both the factors and their weights in the overall evaluation process through a 'fuzzy attractiveness ratio' (FAR) which is used for evaluating the bidders' suitability to task.	en
heal.journalName	Construction Management and Economics	en
dc.identifier.doi	10.1080/01446190902758993	en
dc.identifier.volume	27	en
dc.identifier.issue	4	en
dc.identifier.spage	373	en
dc.identifier.epage	384	en