Pu, PearlFaltings, BoiTorrens, Marc2008-01-142008-01-142008-01-14200410.1109/WI.2004.10058https://infoscience.epfl.ch/handle/20.500.14299/16190WOS:000224473600131The problems associated with computerized search tools in online product search environments are discussed. The application of the Utility Theory, using a tool for the travel planning domain is illustrated. The features of Isy-Travel, a tool based on Smart Client Technology, are also discussed. The tool allows users to search for a flight itinerary according to their personal preferences and constraints.Online systemsHuman computer interactionSearch enginesElectronic commerceLearning systemsDatabase systemsVisualizationJava programming languageServersDecision support systemsOptimizationAlgorithmsMathematical modelstext::conference output::conference proceedings::conference paper