Evaluation of the Interaction with a Digital 3D Testimony

Abstract

Conversations with Holocaust survivors are an integral part of education in German schools and universities as well as part of the German memory culture. The goal of interactive stereoscopic digital Holocaust testimonies is to preserve the effects of meeting and interacting with these contemporary witnesses as faithfully as possible. These virtual humans are non-synthetic, i.e., there exists no underlying system, which extrapolates from recorded data to synthesize and generate new answers. This means that immersion-breaking difficulties common to synthetic virtual humans, such as the audio-visual uncanny valley, can be prevented. Issues resulting from technical constraints, technological barriers to entry or errors, machine and human alike, during the design and creation of the application cannot, however, be ruled out. Therefore, I conducted a preliminary study to evaluate how people perceive this first German-speaking digital interactive 3D Holocaust testimony. I investigated how the study participants perceived the technical and semantic quality of recording and display, the difficulties in using and interacting, the accuracy and relevance of the answers given as well as the authenticity and emotiveness of the virtual contemporary witness. In this paper, I detail how the study was set up, the results of the survey, and my analysis of the data.