The construction industry, compared to other industries, is distinguished by a small productivity of work and large fragmentation. Solution of construction-related problems requires a great deal of time and financial resources. Method of project multicriteria decision synthesis with decision success criterion is used for realisation of construction projects which require analysis of constituent parts in close relationship of components. On every level of the whole project, the decision of

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... ess to ideal solution method is made and, on the basis of the obtained results, several alternatives are chosen. At the last decision stage, there is performed a synthesis by the chosen alternatives and relying on their interrelations. During decision process on the intermediate stages, having eliminated irrational alternatives, effective and precise results are achieved. The developed multicriteria decision synthesis method is one of the elements of the newly created group of multicriteria decision methods. Using this method algorithm, software is prepared that entirely manages the whole decision process from database filling to calculation and result processing.