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Despite the growing interest in user experience (UX), it has been hard to gain a common agreement on the nature and scope of UX. In this paper, we report a survey that gathered the views on UX of 275 researchers and practitioners from academia and industry. Most respondents agree that UX is dynamic, context-dependent, and subjective. With respect to the(More)
The recent shift of emphasis to user experience (UX) has rendered it a central focus of product design and evaluation. A multitude of methods for UX design and evaluation exist, but a clear overview of the current state of the available UX evaluation methods is missing. This is partly due to a lack of agreement on the essential characteristics of UX. In(More)
The aim of this paper is twofold (i) comparing the effectiveness of two evaluation methods, namely heuristic evaluation and usability testing, as applied to an experimental version of the UNIVERSAL Brokerage Platform (UBP), and (ii) inferring implications from the empirical findings of the usability test. Eight claims derived from previous research works(More)
Effectiveness of Heuristic Evaluation (HE) has severely been challenged. The present study investigated two strategies for improving the effectiveness of HE: Selection of usability guidelines (Gerhardt-Powals' cognitive engineering principles vs. Nielsen's heuristics); Provision of support and training. We also examined various strategies for estimating the(More)
User experience (UX) is still an elusive notion with many different definitions, despite some recent attempts to develop a unified view on UX. The lack of a shared definition of UX not only confuses or even misleads customers of a product/service but also undermines the effectiveness of researching, managing and teaching UX. Diverse ideas have been(More)
User effect in terms of influencing the validity and reliability of results derived from standard usability tests has been studied with different approaches during the last decade, but inconsistent findings were obtained. User effect is further complicated by other confounding variables. With the use of various computational models, we analyze the extent of(More)