Browsing by Author "Zagorodna, Natalia"

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    Optimization of Software Architecture Selection for the System Under Design and Reengineering
    (Національний університет "Львівська політехніка", 2018-02-24) Kharchenko, Olexandr; Raichev, Ihor; Bodnarchuk, Ihor; Zagorodna, Natalia
    The problem of optimization of software system architecture choice is considered taking into account changes of requirements in iterative technologies of design and reengineering. The solution is offered on the base of correction of alternatives’ characteristics which were accounted on previous iteration or modification of existing software system during reengineering. This method prevents recalculations for evaluation and selection process. The method of pairwise substitution is applied for alternatives’ characteristics correction. Its concept lies in compensation on supremacy of criterion change. Multicriteria optimization of substitution is carried out using nonlinear scalar convolution what improves validity of selected decision.
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    Trade-off Optimization in the Problem of Software System Architecture Choice
    (Національний університет "Львівська політехніка", Видавництво Львівської політехніки, 2016-04-24) Kharchenko, Аlexandr; Bodnarchuk, Ihor; Raichev, Ihor; Zagorodna, Natalia
    The problems of multi-criteria choice of software system architecture are discussed, connected with definition of criterion function. For this the universal scalar convolution is offered to apply, where the priority of quality criteria depends on its proximity to the limitation. Optimization model application for problem of reengineering or directed choice of software architecture is discussed too