Szukana fraza: [Abstrakt = "The evolution of Internet platforms influences the need to develop systems focused on the increase of their effectiveness. In case of complex systems the selection of functioning parameter is important, as well as conduction of test research in order to provide a determined level of effectiveness including maximization of results in many scopes. The article presents the multistage procedure which enables the reduction of decision problem dimension and increase of the effectiveness of Internet websites with the use of factor analysis method."]

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