http://dl.gi.de/handle/20.500.12116/36425 2026-07-23T18:35:16Z 2026-07-23T18:35:16Z Plotzky, Christian Lindwedel, Ulrike Bejan, Alexander König, Peter Kunze, Christophe http://dl.gi.de/handle/20.500.12116/36433 2021-05-13T16:42:07Z 2021-01-01T00:00:00Z

Virtual Reality in Healthcare Skills Training: The Effects of Presence on Acceptance and Increase of Knowledge Plotzky, Christian; Lindwedel, Ulrike; Bejan, Alexander; König, Peter; Kunze, Christophe With an ever-increasing need of skilled healthcare workers, efficient learning methods like Virtual Reality (VR) are becoming increasingly important. We developed and tested a VR simulation for endotracheal suctioning. The aim of this pilot study was to examine the VR simulation’s acceptance and increase of knowledge among participants. Furthermore, the effects of presence on acceptance and increase of knowledge were investigated. A total of 51 students participated in the pilot study, using a quasi-experimental pre-post-test design. A modified Unified Theory of Acceptance and Use of Technology (UTAUT) and the Igroup Presence Questionnaire (IPQ) were used. Correlation and regression analyses were performed. Pre- and post-tests showed a significant increase of knowledge (p < 0.001). The correlation between presence and behavioural intention was highly positive (r = 0.52, p < 0.001). Performance and effort expectancy are dominant effects on behavioural intention of using the VR simulation as an educational tool. The results indicate that a simulation which conveys a higher sense of presence is more likely to be accepted by learners. Regarding outcomes of presence on increase of knowledge, we found no significant correlation. Based on our study, we propose a design for a future mixed reality simulation with haptic elements and a plan on how to assess skills improvement.

2021-01-01T00:00:00Z Burtscher, Sabrina Spiel, Katta http://dl.gi.de/handle/20.500.12116/36434 2021-05-13T16:42:07Z 2021-01-01T00:00:00Z

“Let’s Talk about Gender” – Development of a Card Deck on (Gender) Sensitivity in HCI Research and Practice Based on a Contrasting Literature Review Burtscher, Sabrina; Spiel, Katta Funding bodies in Western societies increasingly require researchers to address gender in their proposals – though often exclusively framed around binary notions. With oppressive power structures being prevalent and persuasive, these seep into current practices of Computer Science and Human-Computer Interaction (HCI) research. However, current curricula rarely provide actors in this space with grounded guidance on gender issues tied to their inquiries. Hence, developing an increased awareness of our societal responsibility towards equity can be challenging without an appropriate starting point. Drawing on a close reading of select literature discussing gender sensitivity in HCI research, we derived practical guidance in the form of recommendations for the design, proposal, conduct and presentation of research. Based on these recommendations, we then present the design of a card deck and initial tests thereof at ditact women’s IT summer university. Our analysis offers a starting point for HCI students and interested researchers to explore questions and issues around gender and to identify how gender relates to their research. This sensitisation may aid them in further reflecting on how they might better account for gendered implications of their work.

2021-01-01T00:00:00Z Funk, Johannes Schmidt, Ludger http://dl.gi.de/handle/20.500.12116/36432 2021-05-13T17:02:42Z 2021-01-01T00:00:00Z

Evaluation of an Augmented Reality Instruction for a Complex Assembly Task - Comparison of a Smartphone-Based Augmented Reality Instruction with a Conventional Paper Instruction for the Teach-in Phase in Manual Assembly Funk, Johannes; Schmidt, Ludger This study compares the use of a marker-based AR instruction with a paper instruction commonly used in manual assembly. Hypotheses were tested as to whether the instruction type affects assembly time, number of errors, usability, and employee strain. Instead of student participants and artificial assembly tasks (e. g. Lego assemblies), the study was conducted with 16 trainees in a real workplace for the assembly of emergency door release handles in rail vehicles. Five assembly runs were performed. Assembly times and assembly errors were determined from recorded videos. Usability (SUS) and strain (NASA-TLX) were recorded with questionnaires. After a slower assembly at the beginning, the AR group assembled significantly faster in the fifth run. The comparable number of errors, usability and strain make marker-based AR applications interesting for knowledge transfer in manual assembly, especially due to the easy entrance and low costs.

2021-01-01T00:00:00Z Gilbert, David Fischer, Holger Röder, Dirk http://dl.gi.de/handle/20.500.12116/36435 2021-05-13T17:03:17Z 2021-01-01T00:00:00Z

UX at the Right Level - Appropriately Plan the UX Expertise Using the PUXMM – A UX Maturity Model for Projects Gilbert, David; Fischer, Holger; Röder, Dirk Usability and user experience maturity models are used to evaluate the capabilities of an organization in order to provide an assessment of their ability to develop usable products. But, as the main focus of such models is on an all-encompassing organizational level, they are difficult to implement in more complex organizations with a wide range of diverse and interlinked projects. This paper presents a project related UX maturity model, which was developed at DB Systel to address this issue: the PUXMM. It takes into account the nested internal customer relationships between departments and subcontractors and applies a human-centered design approach. There are two practical application scenarios for the PUXMM. It can be used to determine the UX maturity level of an ongoing project and as checklist to align a project to a desired maturity level from the outset.

2021-01-01T00:00:00Z