For this special section, we have selected three papers that approach the design of the user experience of self-service systems in an integrated way and show the readership of this journal what methods and techniques can be used in this type of design process. These three papers together give us an in-depth and broad introduction to the challenges of designing for the user experience of self-service systems, while providing us with some exemplary solutions.

Usability evaluation and usability testing are defined and distinguished, and the role of expert evaluation in defining audience groups, constructing usage scenarios, and performing task breakdowns is pointed out. Usability evaluation is viewed as comparable to the work of an expert editor, and the background that a usability specialist should have is described. Other methods besides testing that can supplement expert evaluation are briefly discussed.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

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