2.50
Hdl Handle:
http://hdl.handle.net/2436/29488
Title:
A Decision Support Tool for the Valuation of Variations on Civil Engineering Projects
Authors:
Sutrisna, Monty; Buckley, Kevan; Potts, Keith F.; Proverbs, David G.
Abstract:
The valuation of variations has been recognised as a prime cause of conflict and dispute in construction management. Such disputes often concern the prices and/or rates to be applied to the varied works. Previous research has identified the subjectivity of the decision-maker in interpreting the valuation rules to be the major problem, particularly with regard to defining the work conditions and/or characteristics during a variation event. Findings of a survey, conducted to elicit the views and perceptions of experienced practitioners towards interpreting the valuation rules are presented. The development of a decision-making tool based on a robust framework for valuing variations in civil engineering projects is described. The tool was developed by analysing changes in various decision attributes. The result of the changes was then mapped to relevant sets developed using fuzzy-logic principles. Various operators were used to perform the fuzzy-aggregation operation. The modelling technique was demonstrated to be reliable in replicating the decision-making process performed by experienced practitioners. As such is considered a suitable aid for decision-making involved in valuing variations on civil engineering works. The results of the analysis reported here have suggested the fuzzy-logic as an appropriate tool to model human decision-making, particularly in valuing variations on civil engineering works. This is considered an essential progress of the current study in modelling human decision-making process, particularly since there are so many unknown aspects associated with such a process. The modelling technique successfully developed here is then used as the main algorithm for decision-making in the subsequently developed Knowledge Based System (KBS) which is intended to assist practitioners minimise conflict and dispute arising from the valuation of variations.
Citation:
RICS Research Papers, 5(7)
Publisher:
RICS (Royal Institute of Chartered Surveyors)
Issue Date:
2005
URI:
http://hdl.handle.net/2436/29488
Additional Links:
http://www.rics.org/NR/rdonlyres/C11ABB82-72E5-48F2-A464-114A1EBD8E5C/0/vol5_no7.pdf
Type:
Book; Project Report
Language:
en
ISSN:
1464-648X
ISBN:
1842192175
Appears in Collections:
Construction and Infrastructure

Full metadata record

DC FieldValue Language
dc.contributor.authorSutrisna, Monty-
dc.contributor.authorBuckley, Kevan-
dc.contributor.authorPotts, Keith F.-
dc.contributor.authorProverbs, David G.-
dc.date.accessioned2008-06-04T13:36:51Z-
dc.date.available2008-06-04T13:36:51Z-
dc.date.issued2005-
dc.identifier.citationRICS Research Papers, 5(7)en
dc.identifier.isbn1842192175-
dc.identifier.issn1464-648X-
dc.identifier.urihttp://hdl.handle.net/2436/29488-
dc.description.abstractThe valuation of variations has been recognised as a prime cause of conflict and dispute in construction management. Such disputes often concern the prices and/or rates to be applied to the varied works. Previous research has identified the subjectivity of the decision-maker in interpreting the valuation rules to be the major problem, particularly with regard to defining the work conditions and/or characteristics during a variation event. Findings of a survey, conducted to elicit the views and perceptions of experienced practitioners towards interpreting the valuation rules are presented. The development of a decision-making tool based on a robust framework for valuing variations in civil engineering projects is described. The tool was developed by analysing changes in various decision attributes. The result of the changes was then mapped to relevant sets developed using fuzzy-logic principles. Various operators were used to perform the fuzzy-aggregation operation. The modelling technique was demonstrated to be reliable in replicating the decision-making process performed by experienced practitioners. As such is considered a suitable aid for decision-making involved in valuing variations on civil engineering works. The results of the analysis reported here have suggested the fuzzy-logic as an appropriate tool to model human decision-making, particularly in valuing variations on civil engineering works. This is considered an essential progress of the current study in modelling human decision-making process, particularly since there are so many unknown aspects associated with such a process. The modelling technique successfully developed here is then used as the main algorithm for decision-making in the subsequently developed Knowledge Based System (KBS) which is intended to assist practitioners minimise conflict and dispute arising from the valuation of variations.en
dc.language.isoenen
dc.publisherRICS (Royal Institute of Chartered Surveyors)en
dc.relation.urlhttp://www.rics.org/NR/rdonlyres/C11ABB82-72E5-48F2-A464-114A1EBD8E5C/0/vol5_no7.pdfen
dc.subjectKnowledge Based Systems (KBS)en
dc.subjectConstruction costsen
dc.subjectConstruction planningen
dc.subjectConstruction managementen
dc.subjectConflict resolutionen
dc.subjectConstruction project organisationen
dc.subjectPrice variationen
dc.subjectDispute resolutionen
dc.subjectValuation rulesen
dc.subjectConstruction industryen
dc.subjectDecision Makingen
dc.subjectFuzzy logicen
dc.subjectModellingen
dc.subjectDecision making toolsen
dc.subjectValuation of variationsen
dc.subjectConstruction contractsen
dc.subjectUKen
dc.subjectConstruction procurementen
dc.subjectCost estimationen
dc.titleA Decision Support Tool for the Valuation of Variations on Civil Engineering Projectsen
dc.typeBooken
dc.typeProject Reporten
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