Kansei or Affective Engineering is a relatively new research field in the West.Linköping University in Sweden has been pioneering research and applicationwithin Kansei Engineering since 1999. Several companies have cooperated indifferent Kansei studies, for example Toyota/BT, Volvo, Saab, Scania. In some of theearly studies, there were difficulties to apply the methodology. Reasons for thisincluded shortage of competence within affective design in European organizations,but also the fact that incitements for improvement of product design seemed to belacking. One of the problems applying the methodology was that Europeanparticipants in the studies did not accept to make a vast number of ratings duringlong time periods. Japanese researchers used 5-point semantic differentialquestionnaires and up to 300 rating-scales per participant and product. In order toovercome this problem, a modification of the rating scales was developed. Hence,data reduction methods such as factor analysis, affinity diagram and Pareto chartswere tested and validated in order to reduce the number of Kansei words andproduct samples used, without compromising the validity of the result. Thisapproach eventually resulted in the development of a universal Kansei EngineeringSoftware (KESo) which reduces the time needed for each Kansei Engineering study.Another objective for our research has been to develop and validate methods forincomplete data collection, i.e. a prioritization of product attributes. Another resultfrom the cooperation with industrial companies is that the companies stronglyemphasised that product development studies need to be less time and resourceconsuming.Keywords: