Abstract

The need for real usability testing analysis is discussed, since the assumption that classical usability heuristics are not capable to cope every possible web information system use scenario. Also, a really easy and cheap way to develop real user tests based on low-fidelity protypes is explained.

Abstract

A NINGUNO NOS EXTRAÑA que la profesión de bibliotecario-documentalista derive hacia gestor de información. Ni es extraño que quienes durante siglos se han ocupado de ordenar, organizar y hacer accesible la información escrita en los papeles ahora quieran continuar su trabajo con la información escrita con bits. A estas alturas ya no es nada nuevo.

Abstract

In recent years, multiple sets of interaction patterns have been proposed for use in the design and the development of website interfaces. The semantic web also has enhanced websites with semantic content. This paradigm shift allows the reexamination of usual end-user tasks, which, as semantic web end-user tasks, might remain the same, be completely changed, or give rise to the development of new tasks. We have defined a list of semantic web end-user tasks and built an inventory of most of the interaction patterns proposed for semantic web use. We then classified these patterns according to the semantic web end-user tasks where they can be used and analyzed how interaction patterns can improve the functionality of each of those semantic web end-user tasks.

Abstract

utomotive navigation systems are becoming ubiquitous as driver assistance systems. Vendors continuously aim to enhance route guidance by adding new features to their systems. However, we found in an analysis of current navigation systems that many share interaction weaknesses, which can damage the system’s credibility. Such issues are most prevalent when selecting a route, deviating from the route intentionally, or when systems react to dynamic traffic warnings. In this work, we analyze the impact on credibility and propose improved interaction mechanisms to enhance perceived credibility of navigation systems. We improve route selection and the integration of dynamic traffic warnings by optimizing route comparability with relevance-based information display. Further, we show how bidirectional communication between driver and device can be enhanced to achieve a better mapping between device behavior and driver intention. We evaluated the proposed mechanisms in a comparative user study and present results that confirm positive effects on perceived credibility.