Abstract
The paper presents the comparative analysis of dwelling maintenance contractors aimed at determining the degree of their utility for users and bidding price of services by applying the method of multicriteria complex proportional assessment. To compare the performance of various maintenance contractors, the data from 15 dwelling maintenance organizations was used. A questionnaire survey of dwelling owners was conducted. Contractors were evaluated by a set of 44 criteria characterizing them from various perspectives. The analysis was made taking into account the standpoints of building owners (clients). The initial weights of qualitative criteria were calculated by expert methods. Then they were coordinated with the calculated values of quantitative criteria using the method of multicriteria complex proportional assessment. Multicriteria analysis of the performance of maintenance contractors allows us to determine the importance of particular contractor characteristics for achieving the aim to meet the needs of different participants of the maintenance process. Santruka Straipsnyje pateikta daugiabučius namus administruojančiu imoniu lyginamoji analize. Tyrimo tikslas — nustatyti daugiabučius namus administruojančiu imoniu paslaugu naudinguma namo naudotojams. Pavyzdžiui išspresti buvo naudoti penkiolikos daugiabučius namus administruojančiu imoniu paslaugu rodikliai. Imones pagal 44 juos apibūdinančius kriterijus vertino daugiabučiu namu gyventojai. Pradiniai kokybiniu rodikliu reikšmingumai nustatyti taikant ekspertini metoda. Kokybiniu ir kiekybiniu rodikliu reikšmingumai suderinti, optimalus variantas ir variantu naudingumai nustatyti daugiakriterinio kompleksinio proporcingo vertinimo metodu (angl. method of COmplex PRoportional ASsessment, COPRAS). Pagal taikyta metoda derybu metu galima koreguoti pasiūlymu kainas, atsižvelgiant i nustatyta alternatyvu naudinguma. Daugiakriterine analize leidžia nustatyti konkretaus rangovo rodikliu reikšmingumus, ivertinus skirtingus daugiabučiu namu priežiūros proceso dalyviu poreikius.
Highlights
The efficiency of maintenance depends on various micro- and macro-environmental factors
Modelling and multicriteria analysis allow us to find a way to meet the goals of the participants of the maintenance process and to choose an optimal maintenance service supplier as well as the efficient ways of providing these services
This paper describes the results obtained in optimal contractor selection based on multicriteria analysis
Summary
The efficiency of maintenance depends on various micro- and macro-environmental factors. In the first part of the research Zavadskas and Vilutienė (2006) analyzed the factors influencing maintenance process efficiency and proposed the criteria characterizing the performance of maintenance contractors. The method for service price correction in competitive bidding, determining the degree of utility of each contractor (the method of multicriteria complex proportional assessment described in sections 3.3 and 3.4). To illustrate the efficiency of the model proposed, multicriteria analysis of maintenance contractor selection is presented in case study. Maintenance contractors were evaluated according to a set of criteria determined in the first part of the research (Zavadskas and Vilutienė, 2006)
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