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This book presents models for users´ experiences with interactive systems. It examines how to incorporate aesthetic, emotional, and social aspects of a product while designing interactive systems.

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Over the past decade the field of Human-Computer Interaction has evolved from the study of the usability of interactive products towards a more holistic understanding of how they may mediate desired human experiences.

This book identifies the notion of diversity in users_ experiences with interactive products and proposes methods and tools for modeling this along two levels: (a) interpersonal diversity in users_ responses to early conceptual designs, and (b) the dynamics of users_ experiences over time.

The Repertory Grid Technique is proposed as an alternative to standardized psychometric scales for modeling interpersonal diversity in users_ responses to early concepts in the design process, and new Multi-Dimensional Scaling procedures are introduced for modeling such complex quantitative data.

iScale, a tool for the retrospective assessment of users_ experiences over time is proposed as an alternative to longitudinal field studies, and a semi-automated technique for the analysis of the elicited experience narratives is introduced.

Through these two methodological contributions, this book argues against averaging in the subjective evaluation of interactive products. It proposes the development of interactive tools that can assist designers in moving across multiple levels of abstraction of empirical data, as design-relevant knowledge might be found on all these levels.

Foreword by Jean-Bernard Martens and Closing Note by Marc Hassenzahl.

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Personal Attribute Judgments.- Analyzing Personal Attribute Judgments.- User Experience Over Time.- iScale: studying long-term experiences through memory.- A semi-automated approach to the content analysis of experience narratives.

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From the reviews:

"The book is actually a report of the author´s research explorations. Each chapter sets specific goals intended to highlight different aspects related to modeling, measuring, and analyzing user experience over time. ... this book is a constructive source of information for both novice and experienced researchers in the field of human-computer interaction, as well as for usability practitioners and designers of interactive products." (Evangelia Kavakli, ACM Computing Reviews, March, 2013)

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