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During the use of buildings it becomes necessary to carry out repair works including modernisation. Deciding on the choice of repair solutions is a difficult and complex task. Building administrators have to consider both, the benefits of some repair works, and limitations due to the availability of funds. Selection of a repair solution, bearing in mind the above, requires a comprehensive approach that will allow assessment of the building condition and determining the repair scope required. The research conducted by the authors was aimed at developing a decision-making model and its computer-aided implementation. The system algorithm proposed comprises a few stages including: extended evaluation of building exploitation condition, renovation activities assessment which can be carried out with the use of various technologies and materials, the choice of repair solutions. The article describes individual stages of the model in detail, giving numerical application examples of the method for repair solution choice for multi-family houses. In order to solve particular tasks the authors applied such methods as multi-criteria decision making method and linear programming.
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