Abstract (eng)
Nowadays, there are various tools for navigation outdoors, which are mainly based on satellite navigation. Indoors, there is currently no such widespread and universal technology. Nevertheless, there are numerous approaches that rely for instance on radio signals but require additional infrastructure for positioning or have other disadvantages. Augmented reality is on the one hand a technology that expands the real environment with virtual content, but on the other hand also enables indoor navigation. Not only can the practical representation of navigation instructions be used, but the entire process of wayfinding from positioning to reaching the goal can be carried out via localization using a 3D model. However, this type of navigation is still rarely used indoors. The success of such a technology is driven mainly by technical progress, but the non-technical influences, such as social acceptance, human as well as commercial factors cannot be marginalized. For this reason, the focus of this work is on human factors. In this context, usability is an abstract construct that generally stands as a success factor for interactive products, seeing human needs as a central element. In this work, the user view of the problem of indoor navigation with AR is evaluated by examining an AR navigation application (GuideBOT from ViewAR) for usability. Furthermore, it is juxtaposed to the still frequently used navigation with the help of an analogue system (map + information signs). For this purpose, a usability evaluation was carried out, which records the efficiency, effectiveness and satisfaction by recording the times (time on task) as well as the error rate of a navigation task in the Albertina Museum in Vienna and conducting a survey on perceived usability. It turned out that the AR application is more effective, efficient and has been judged both more satisfactorily and useful by the participants.