Decision making in architectural and urban design is a process of selecting the alternative solution to the spatial problem that best meets the set goals and requirements. The spatial planning process is based on the creation of a set of solutions that are sorted, analysed and finally selected, discarded or evaluated in the process and ranked in relation to other solutions. The planning process is based on both the physical simulation of the space - drawings and models - and the digital (computer) simulation of the abstract model. The research objective is to present the possibility of using multicriteria evaluation models in the selection of spatial solutions, to implement (realise) the model in Rhino 6 environment, to test the model on the example of a current architectural competition and to test and compare six methods of multicriteria evaluation for proposed spatial solutions; analysis of advantages and disadvantages, PMI method, Abacon method, K-T method, MAUT method and DEX methodology. To test the hypothesis and research questions, documentation was selected from a closed, public, project-based, open, anonymous, single-stage architectural competition. The selected solutions were evaluated using the six methods. For the first three selected multicriteria methods, we can state that they are very subjective, not too precise and as such unsuitable for evaluating solutions to the spatial problem. The K-T and MAUT methods are both more objective and more suitable for evaluation in the design process in different cases. The DEX method is a representative of multi-criteria methods that uses symbolic parameters in evaluation. According to the defined criteria, MAUT method of multicriteria decision making has proved to be the best or most useful method among the analysed methods.
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