The construction industry is one of the sectors with the highest accident rates. To prevent accidents, construction workers receive occupational safety training and safety instructions. However, experience-based learning of dangerous situations is hardly possible or justifiable in reality. Virtual reality (VR) simulations can be a potential solution in this regard by allowing workers to experience dangerous situations in a very vivid but safe way without being exposed to real hazards. In this study, a VR simulation for construction safety training was developed and tested with trainees that learn the safe operation of hand-operated power tools. In this particular case study, the objective for the participants in the VR simulation was to successfully consider all safety aspects in the operation of an angle grinder. The usability, user experience and implicit learning were investigated during the study. Additionally, we conducted post-play interviews with participants. Results found learning effects of participants as well as a satisfying user experience and usability. The results also show that participants might learn content as presented, risking the learning of false information if the simulation does not cover relevant safety aspects.

Developing information systems and collaboration support in the field of intensive home care is faced with challenging conditions of empirical work for requirements elicitation. On the one hand, the huge variety of aspects and situation-related characteristics require a deliberate analysis and close interaction with caregivers and relatives to identify the needs and constraints of technical support. On the other hand, the relevant places are hardly accessible. To be able to visit and observe the clients in situ, consent is needed by the caregiver, the client, and the relatives living with them, and a high level of privacy and confidentiality has to be maintained. Based on an ethnographical data gathering and analysis, this article provides a comprehensive categorization that characterizes the work of caregivers in intensive home, to make the work of information system designers in this field more efficient: activities, interpersonal interaction, documentation, qualification, interaction with technology, client autonomy, history of medical records, and feedback on intensive home care. Finally, these categories are compared with related work of socio-technical design of health care information systems.

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ZusammefassungDie digitale Transformation der Bauindustrie ist bereits in vollem Gang. Für die Planung und Umsetzung des Arbeitsschutzes in Bauprojekten werden die digitalen Möglichkeiten aktuell noch nicht konsequent genutzt. DigiRAB entwickelt smarte Prozesse und Technologien für das sichere Arbeiten auf Baustellen. Hierzu gehören (1) digitales Planen der Arbeitssicherheit, (2) pro-aktives Warnen, Melden und Auswerten von Beinahe-Unfällen in Echtzeit und (3) personalisiertes Schulen und Lernen in der Gefahrenerkennung.

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