Institut Mensch in komplexen Systemen
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Ergebnisse nach Hochschule und Institut
Publikation Why Do or Don’t You Provide Your Knowledge to an AI?(AHFE Open Access, 2024) Renggli, Philipp; Wäfler, Toni; Ahram, Tareq; Kalra, Jay; Karwowski, Waldemar04B - Beitrag KonferenzschriftPublikation Interactive proposal system for determining a set of operational parameters for a machine tool, control system for a machine tool, machine tool and method for determining a set of operational parameters(Europäisches Patentamt, 23.08.2023) Plüss, Christoph; Diergard, Urs; Wäfler, Toni; Weiss, Lukas; Renggli, Philipp; Süssmaier, Stefan12 - PatentPublikation sWafety: A Complementary Low-threshold Safety Management Process(2023) Schenkel, Sandra; Medici, Guri; Staender, Sven; Wäfler, ToniEffective safety management requires a reliable information basis. At the same time, established safety management systems (SMS) and surveys are known to have certain limitations, such as low participation rates or data bias due to the influence of situational factors (e.g., Pfeiffer, Manser & Wehner, 2010; Sujan, 2015). In collaboration with Swiss companies from the aviation, nuclear and healthcare industries, sWafety was developed and tested as a complementary process concept to address these shortcomings. sWafety provides a low-threshold process design and digital tool that aims to further engage and motivate employees to participate in data collection, analysis, and feedback to further improve data quality.This paper describes the design of the sWafety process, which is based on a user-centered approach as well as insights from motivation theory, gamification, and practical expertise. Key process elements are presented that support motivated employee participation through short survey cycles, low respondent burden, direct feedback processes and active user involvement in data interpretation and safety measure development. Based on a use case with a Swiss hospital, a minimum viable app-prototype was applied to test the extent to which key process elements can be transferred to operational practice and how they are evaluated by users. An eight-day application scenario of sWafety was conducted with a team of anesthesia professionals (n = 7). Prototyped process elements included daily app-based data collection and alternating feedback presentation. A formative evaluation was conducted by means of a workshop.The results of a qualitative content analysis indicate that the key process elements are transferable to operational practice. Concisely worded questions, tasks, or feedback that encourage reflection and learning, were found to be more motivating than gamification. Timely feedback, particularly on work-related information, and full transparency regarding the purposes and outcomes of the surveys also appear to be very important factors motivating participation in providing safety-related data. However, users called for more opportunities to provide bottom-up information and a more active role in discussing findings and developing safety measures.Effective implementation of sWafety into operational practice requires that the general process design is adapted to a company’s specifics. Particular attention should be paid to how local, decentralized processes can be implemented to enable timely feedback and appropriate employee involvement in discussing results and developing safety measures. Regarding low-threshold process design, the results imply that elements which trigger intrinsic motivation (e.g., learning or reflection) should be preferred over gamification. Also, further development of technical solutions for flexible interaction with the app and for data analysis can further increase the potential of sWafety.04B - Beitrag KonferenzschriftPublikation Implementing Data-Based Services: A Socio-Technical Model(21.07.2022) Deflorin, Patricia; Campos, Adrian; Wäfler, Toni; Havelka, Anina; Leitner, Christine; Ganz, Walter; Bassano, Clara; Satterfield, Debra04B - Beitrag KonferenzschriftPublikation Being Snoopy and Smart: The Relationship between Curiosity, Fluid Intelligence, and Knowledge(Hogrefe, 2022) Hartung, Freda-Marie; Thieme, Pia; Wild-Wall, Nele; Hell, BenediktCuriosity is a basic driver for learning and development. It has been conceptualized as a desire for new information and knowledge that motivates people to explore their physical and social environment. This raises the question of whether curiosity facilitates the acquisition of knowledge. The present study ( N = 100) assessed epistemic curiosity and general knowledge as well as fluid intelligence (i.e., reasoning ability, processing speed, memory) in a student sample. The results indicate that epistemic curiosity is moderately related to knowledge ( r = .24) and reasoning ability ( r = .30). None of the fluid intelligence measures did moderate the relationship between curiosity and knowledge (interaction terms β < |.08|). Rather, reasoning ability mediated the relationship between epistemic curiosity and general knowledge (indirect effect: β = .10, p < .05). The findings suggest that epistemic curiosity facilitates the acquisition of knowledge by promoting reasoning. One might speculate that epistemically curious individuals enrich their environment, which in turn enhances their cognitive ability.01A - Beitrag in wissenschaftlicher ZeitschriftPublikation Studie «Personalentwicklung im Wandel» Digitalisierungsschub dank Covid(WEKA, 2022) Nido, Miriam; Schneider, Lena; Hell, Benedikt01B - Beitrag in Magazin oder ZeitungPublikation Video demonstrations can predict the intention to use digital learning technologies(Wiley, 21.01.2023) Sprenger, David; Schwaninger, AdrianThe technology acceptance model (TAM) uses perceived usefulness and perceived ease of use to predict the intention to use a technology which is important when deciding to invest in a technology. Its extension for e-learning (the general extended tech-nology acceptance model for e-learning; GETAMEL) adds subjective norm to predict the intention to use. Technology acceptance is typically measured after the technology has been used for at least three months. This study aims to identify whether a minimal amount of exposure to the technology using video demonstrations is sufficient to predict the intention to use it three months later. In two studies—one using TAM and one using GETAMEL—we showed students of different cohorts (94 and 111 participants, respectively) video demonstra-tions of four digital technologies (classroom response system, classroom chat, e-lectures, mobile virtual real-ity). We then measured technology acceptance imme-diately after the demonstration and after three months of technology use. Using partial least squares model-ling, we found that perceived usefulness significantly predicted the intention to use three months later. In GETAMEL, perceived usefulness significantly predicted the intention to use for three of the four learning technol-ogies, while subjective norm only predicted the inten-tion to use for mobile virtual reality. We conclude that video demonstrations can provide valuable insight for decision-makers and educators on whether students will use a technology before investing in it.01A - Beitrag in wissenschaftlicher ZeitschriftPublikation Bar display or numeric display – which punctuality display makes more sense for train drivers?(09.11.2022) Stoller, Nicole; Wahrstätter, Stefan; Brüngger, Jonas; Fischer, KatrinBackground: Drivers of some public transport, like trams or buses, are equipped with a punctuality display to continuously monitor the actual status with the scheduled times of the timetable. The train drivers of the Swiss Federal Railways and some other major railway companies in the country do not have such a punctuality display until now. Instead, they receive other information aids on the screen of their work tablets, such as frequent passage times for operating points or recommended speeds for a smooth and energy-saving journey. However, train drivers must compare two displayed times and perform a mental calculation to get their current earliness or delay in relation to the timetable. Aim: The aim of this study was to investigate how a punctuality display needs to be designed to support drivers in a smooth and safe journey without causing stress or distraction. Method: Two prototype punctuality displays, a bar graph display and a numeric display, were developed in a workshop with experts from the railway and occupational psychology fields. During the development the two prototypes were evaluated according to suitable design and usability criteria such as task appropriateness, conformity to expectations or individuality. In addition, the two prototypes were not allowed to restrict the train drivers' scope of action or distract them during the journey. The train drivers tested the two punctuality displays on test tablets during one to two work shifts. They then rated usefulness, distraction, stress, risk of confusion and other issues on an online-questionnaire using a 7-point Likert scale. Results: Seventy-three train drivers tested the punctuality displays, 55 of whom completed the questionnaire. Eighty per cent of the drivers preferred the numerical display to the bar display. The ratings of some aspects, such as usefulness or interpretability, were significantly higher for the numeric display than for the bar display. Conclusion: The results show a clear preference for the numeric display over the bar display. While the usability criteria in this study were only considered for the punctuality display itself, they should also be applied when the system is put in place.06 - PräsentationPublikation Distraction and the Use of Modern Communication Devices in the Train Driver's Cab(26.09.2022) Stoller, Nicole; Brüngger, Jonas; Wahrstätter, Stefan; Dittrich, Melisa; Nisoli, Giulio; Hostettler, Karin; Fischer, KatrinSwiss railway companies provide their train drivers with modern communication devices such as cell phones and tablets. The use of these devices is necessary for train drivers to perform their tasks. However, the use of these devices can distract the drivers to an extent not to be underestimated. Increasing irregularities and unsafe actions, including signals passed at danger, can be attributed at least to a certain extent to the distraction of train drivers by these mobile and other digital devices in the driver’s cab. The final goal of this study was to identify appropriate measures to reduce distraction or its consequences without restricting the scope of action of the train drivers or hindering them in the performance of their primary tasks (i. e., safe train driving). We investigated which digital devices and which of their functions in the driver’s cab lead to distraction in what situations. For this purpose, we conducted 14 qualitative observations in the driver’s cab and six interviews with rail experts. Based on the results, we suggested how to address distraction in the driver’s cab from a work psychology and design perspective. To achieve a holistic approach, we developed measures that address the individual driver as well as the design of technology and the organizational processes. The development and validation of appropriate measures was realized in close collaboration with experts of several railway companies. The outcome is a set of 26 preventive and protective measures. Preventive measures aim to avoid distraction, e.g., by restricting irrelevant information from entering the driver’s cab during the ride. Protective measures reduce the negative consequences of distraction, e.g., the feature of manual and temporary suppression of incoming messages. By carefully selecting and implementing these measures, the railway companies can ultimately support their train drivers to use modern communication devices in the driver’s cab safely and sensibly.06 - PräsentationPublikation How realistic is threat image projection for X-ray baggage screening?(MDPI, 13.03.2022) Riz à Porta, Robin; Sterchi, Yanik; Schwaninger, AdrianAt airports, security officers (screeners) inspect X-ray images of passenger baggage in order to prevent threat items (bombs, guns, knives, etc.) from being brought onto an aircraft. Because threat items rarely occur, many airports use a threat-image-projection (TIP) system, which projects pre-recorded X-ray images of threat items onto some of the X-ray baggage images in order to improve the threat detection of screeners. TIP is regulatorily mandated in many countries and is also used to identify officers with insufficient threat-detection performance. However, TIP images sometimes look unrealistic because of artifacts and unrealistic scenarios, which could reduce the efficacy of TIP. Screeners rated a representative sample of TIP images regarding artifacts identified in a pre-study. We also evaluated whether specific image characteristics affect the occurrence rate of artifacts. 24% of the TIP images were rated to display artifacts and 26% to depict unrealistic scenarios, with 34% showing at least one of the two. With two-thirds of the TIP images having been perceived as realistic, we argue that TIP still serves its purpose, but artifacts and unrealistic scenarios should be reduced. Recommendations on how to improve the efficacy of TIP by considering image characteristics are provided.01A - Beitrag in wissenschaftlicher Zeitschrift