Martina Ziefle
RWTH Aachen University, Human Computer Interaction Center, Faculty Member
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ABSTRACT Quality management is an important aspect of viable manufacturing processes. In order to qualify decision makers to understand the fundamental principles of quality management in production networks, we developed a game-based... more
ABSTRACT Quality management is an important aspect of viable manufacturing processes. In order to qualify decision makers to understand the fundamental principles of quality management in production networks, we developed a game-based simulation and learning environment that can furthermore be used to understand how human factors influence the quality of decisions in complex production networks. Previous studies have shown that underlying human factors must exist, that predict the players’ performance, but it is currently unexplored which factors contribute to high perfor-mance. To investigate these human factors in more depth and to further refine the quality management serious game, we conducted a series of studies. As expected, expertise had a great impact on performance. However, contrary to our expectations, cognitive skills had no influence. The refined decision dashboard with seamlessly integrated self-adapt-ing visualizations on key performance indicators had a significant positive impact on game performance. Most im-portantly, the studies suggest that the developed game is a valuable contribution to the vocational training of quality managers as the quality of their decisions is increased.
Research Interests: Computer Science, Knowledge Management, Supply Chain Management, Quality Management, Usability, and 11 moreDecision Making, Serious Games, Human Factors, Decision Support Systems, Game Based Learning, Key Performance Indicators, PRODUCTION ENGINEERING, Information Processing, Production economics, Industry, and Decision Quality
Diverse sensor-based technologies can be used to track (older and frail) people’s movements and behaviors in order to detect anomalies and emergencies. Using several ambient sensors and integrating them into an assisting ambient system... more
Diverse sensor-based technologies can be used to track (older and frail) people’s movements and behaviors in order to detect anomalies and emergencies. Using several ambient sensors and integrating them into an assisting ambient system allows for the early identification of emergency situations and health-related changes. Typical examples are passive infrared sensors (PIR), humidity and temperature sensors (H&T) as well as magnetic sensors (MAG). So far, it is not known whether and to what extent these three specific sensor types are perceived and accepted differently by future users. Therefore, the present study analyzed the perception of benefits and barriers as well as acceptance of these specific sensor-based technologies using an online survey (reaching N=312 German participants). The results show technology-related differences, especially regarding the perception of benefits. Furthermore, the participants estimated the costs of these sensors to be higher than they are, but at ...
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The Industrial Internet-of-Things (IIoT) promises significant improvements for the manufacturing industry by facilitating the integration of manufacturing systems by Digital Twins. However, ecological and economic demands also require a... more
The Industrial Internet-of-Things (IIoT) promises significant improvements for the manufacturing industry by facilitating the integration of manufacturing systems by Digital Twins. However, ecological and economic demands also require a cross-domain linkage of multiple scientific perspectives from material sciences, engineering, operations, business, and ergonomics, as optimization opportunities can be derived from any of these perspectives. To extend the IIoT to a true Internet of Production , two concepts are required: first, a complex, interrelated network of Digital Shadows which combine domain-specific models with data-driven AI methods; and second, the integration of a large number of research labs, engineering, and production sites as a World Wide Lab which offers controlled exchange of selected, innovation-relevant data even across company boundaries. In this article, we define the underlying Computer Science challenges implied by these novel concepts in four layers: Smart h...
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This work was funded in part by the German B-IT Foundation and by the German Federal Ministry of Education and Research as project “Intuitex” (Grant No. 16SV6264K).
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Interactive textiles are reaching maturity. First technology augmented textiles in form of clothes and furnitures are becoming commercially available. In contrast to the close link between technological development and innovations, future... more
Interactive textiles are reaching maturity. First technology augmented textiles in form of clothes and furnitures are becoming commercially available. In contrast to the close link between technological development and innovations, future users’ acceptance and usage of such interactive textiles has not been integrated sufficiently, yet. The current study investigates future users’ consumer behavior and acceptance of interactive textiles using a scenario-based conjoint analysis study, which was presented in an online questionnaire ( n = 324 ). Two prototypical interactive textiles were focused on: a smart jacket and a smart armchair. To assess the textile products, the participants had to choose the preferred product alternative consisting each of the acceptance-relevant factors “connectivity”, “input modality”, “feature range”, “usability”, and “ease of cleaning”and their respective levels. The results revealed that the “ease of cleaning” is the most important decision criterion for...
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The increasing dynamic and complexity of todays global supply chains and the growing amount and complexity of information challenge decision makers in manufacturing companies. Decision Support Systems (DSS) can be a viable solution to... more
The increasing dynamic and complexity of todays global supply chains and the growing amount and complexity of information challenge decision makers in manufacturing companies. Decision Support Systems (DSS) can be a viable solution to address these challenges and increase the overall decision efficiency and effectivity. However, a thought-through design and implementation of these systems is crucial for their efficacy.
Research Interests: Cognitive Psychology, Cognitive Science, Computer Science, Human Computer Interaction, Information Technology, and 15 moreSupply Chain Management, Ergonomics, Decision Making, Serious Games, Information Visualization, Decision Support Systems, Game Based Learning, Serious Gaming, Information Processing, Educational Games, Decision support system, Production economics, Business Simulation Games, Correctness, and Springer Ebooks
Research Interests: Health Psychology, Computer Science, Information Technology, Serious Games, Ubiquitous Computing, and 15 moreTechnology Acceptance, Sport And Exercise Psychology, Games for Health, Serious Gaming, Public Health, Medicine, Older Adults, Ambient Assisted Living, Exercise Science, eHealth, Exercise and physical activity for health, Living Labs, Kinect, Older Adults and Technology, and Assisted Living
Research Interests: Computer Science, Human Computer Interaction, Information Technology, Participatory Research, User Experience (UX), and 15 moreGesture, Human Factors, User Centred Design, Technology Acceptance, Conjoint Analysis, Home automation, Smart Textile, Smart Textiles, Smart Home, Wearable Technology, Textile, Wearable Computer, Multi Touch, Haptic Technology, and Smartwatch
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At RWTH Aachen University the research cluster " Production Technology for High-Wage Countries " engages in advancing the polylemma of production. In many cases engineers and physicists develop simulation tools, machine... more
At RWTH Aachen University the research cluster " Production Technology for High-Wage Countries " engages in advancing the polylemma of production. In many cases engineers and physicists develop simulation tools, machine interfaces, and data exploration tools but lack essential training in Human-Computer Interaction. Without proper training the interaction of visual, cognitive and task complexity can lead to solutions that are valuable only to the developers themselves, but are not usable without extensive training. We show the most critical ergonomic factors for developing software in a scientific engineering setting that focuses on complex problems. We present an overview of usability methods as well as complexity reduction methods and their applicability in engineering software design. We present an exemplary study for the case of supply chain management, where the approaches were successfully integrated into a serious game not only serving as an investigatory tool but a...
Research Interests: Computer Science, Usability, Human Perception and Performance, Human Factors, Logistics, and 9 moreUser Interface, PRODUCTION ENGINEERING, Human Factors in Visual Perception, Enterprise, Industry, User interfaces, Enterprise Information Systems, Enterprise Resource Planning (ERP), and Industrial Internet
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Facing the growing aging population in many countries of the world, healthcare-related technologies become increasingly important, representing a possible solution to the soaring overstrained health care systems and dwindling number of... more
Facing the growing aging population in many countries of the world, healthcare-related technologies become increasingly important, representing a possible solution to the soaring overstrained health care systems and dwindling number of caregivers. Though a user-centred and sensible integration of medical technology in home environments is highly challenging, especially when focusing on the group of old and frail users. Their specific needs and wants, their (dis)abilities and limitations have to be carefully considered, in order to reach full acceptance and a successful rollout of e-health applications in home environments. As the knowledge about acceptance in the medical sector is still limited, an elaborate research is needed in order to understand and respect aged persons’ specific demands. In an empirical approach, the role of age, technology generation, technical expertise, and gender are determining for the acceptance of medical technologies. As the acceptance of medical techno...
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Kurzfassung Im Rahmen des in der Exzellenzinitiative des Bundes und der Länder geförderten Programms "eHealth -Enhancing Mo-bility with Aging [13], einem interdisziplinären Forschungsprojekt am Human-Technology Centre an der RWTH... more
Kurzfassung Im Rahmen des in der Exzellenzinitiative des Bundes und der Länder geförderten Programms "eHealth -Enhancing Mo-bility with Aging [13], einem interdisziplinären Forschungsprojekt am Human-Technology Centre an der RWTH Uni-versity, wird eine systematische Untersuchung der Akzeptanz bei medizinischen Technologien vorgenommen und itera-tiv in die Geräteentwicklung implementiert. Das Programm zielt auf nutzerzentrierte, adaptive, in die Wohnumgebung eingebettete und über verschiedene Schnittsellen realisierte medizinische Assistenzsysteme. In diesem Paper berichten wir erste Studien zur Technikakzeptanz, in der ältere Nutzer in unterschiedlichen Nutzungskontexten hinsichtlich ihrer Nutzungsmotive und Bedienbarrieren untersucht wurden. Abstract Within the project "eHealth -Enhancing Mobility with Aging [13] a project at the Human technology Centre at RWTH Aachen University, the users' acceptance for (medical) technology is systematically examined and incorporate...
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Medical product development is becoming more and more complex and requires highly-specialized and interdisciplinary collaborations. Their success relies essentially on the selection of suitable partners. However, how to find suitable... more
Medical product development is becoming more and more complex and requires highly-specialized and interdisciplinary collaborations. Their success relies essentially on the selection of suitable partners. However, how to find suitable partners and how to match capabilities of an unknown partner with complex project requirements? Suitability must at least be judged with respect to professional competencies, collaboration capability and project-specific requirements — none of which are easily determined. So, partner selection is mostly dominated by regional proximity or even coincidence. This is a typical scenario for recommender systems. Therefore, we aim at discovering the unexploited potential of collaboration partners by proposing a novel recommendation approach that merges trust with health-sensitive semantic information. This hybrid approach should help to identify collaborators matching complex project requirements faster, better and more holistically.
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Today's production systems are complex sociotechnical systems. Both technical challenges, as well as the integration of human employees with their diverse abilities, wants, and needs, must be considered. Due to a growing number of... more
Today's production systems are complex sociotechnical systems. Both technical challenges, as well as the integration of human employees with their diverse abilities, wants, and needs, must be considered. Due to a growing number of product variants, shorter lead times, and global supply chains, planning production systems is becoming increasingly difficult, both on the technical and human levels. The highly volatile and uncertain character of production systems is intensified by the growing complexity and need for results in shorter decision times for ramp-up management. To handle the increasing complexity, human decision makers must be adequately trained for the ramp-up period. Therefore, the influential factors and their magnitude from both the technical and the human perspective must be identified and understood. This knowledge can help to manage the complexity of ramp-up processes, reduce the disturbances within the processes, and strengthen their overall resilience against failures. To adequately understand the human and technical factors that relate to ramp-up processes, it's necessary to have an experimental framework. This framework should support the identification and quantification of sociotechnical factors, enabling practitioners and researchers to model suitable interventions. In this article, the authors propose, develop, and evaluate a business simulation game that serves as such an empirical framework. The game is furthermore suitable to train managers before the ramp-up process. The achieved performance in the business simulation game may be used to evaluate a person's suitability for the task and to identify individual training potential.
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One mega challenge for the next decades is the aging of populations in western societies. Ambient Assisted Living (AAL) Technologies provide solutions for these challenges of demographic change. Elderly people living independently in... more
One mega challenge for the next decades is the aging of populations in western societies. Ambient Assisted Living (AAL) Technologies provide solutions for these challenges of demographic change. Elderly people living independently in their homes can be monitored for health reasons with integrated information and communication technologies (ICT) to get help in case of emergencies. From the user-centered approach, acceptance of these solutions is crucial. In his work, we focus on the effects of 5 domestic spaces and 3 integrated ICT on acceptance and the influence of user factors. We consider two samples from 2010 (n = 100) and 2015 (n = 148). Results show that visual monitoring is accepted least, positioning best. The role of private and public rooms has a strong influence on acceptance. Also, the type of technology as well as the interaction of technology and room have a strong impact, whereas user factors play only a minor role for AAL acceptance.
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Research Interests: Computer Science, Participatory Research, Serious Games, Diversity, Ubiquitous Computing, and 10 moreUser Centred Design, Technology Acceptance, Sport And Exercise Psychology, Social Care For Older People, Older Adults, Ambient Assisted Living, Exercise Science, Exergames for Health and Physical Activity, Paper Prototype, and Exergames
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Page 1. 41 Visual Ergonomic Issues of LCD Displays – An Insight into Working Conditions and User Characteristics Martina Ziefle 1 Introduction More and more workplaces today depend on the frequent interaction of humans with visual... more
Page 1. 41 Visual Ergonomic Issues of LCD Displays – An Insight into Working Conditions and User Characteristics Martina Ziefle 1 Introduction More and more workplaces today depend on the frequent interaction of humans with visual displays. ...
Research Interests: Information Systems, Cognitive Psychology, Computer Science, Information Technology, Management Information Systems, and 10 moreSupply Chain Management, Usability, Information Visualization, Human Factors, Complexity, The Internet of Things, Information Processing, Enterprise Resource Planning (ERP), User Diversity, and Industrial Internet
Autonomous driving will provide higher traffic safety, meet climate-related issues due to energy-saving mobility, and offer more comfort for drivers. To ensure reliable and safe autonomous traffic, and to provide efficient and... more
Autonomous driving will provide higher traffic safety, meet climate-related issues due to energy-saving mobility, and offer more comfort for drivers. To ensure reliable and safe autonomous traffic, and to provide efficient and time-critical mobility services, data exchange between road users and systems is essential. In public perception, however, sharing data and information may pose a challenge due to perceived privacy restrictions. In this paper, we address user perceptions and their acceptance towards data and information distribution in autonomous driving. In a multi-step empirical procedure, qualitative (focus groups, guided interviews) and quantitative approaches (questionnaire-study) were combined. The findings reveal that autonomous driving is commonly seen as a highly useful and appreciated technology. Though individual risk perceptions and potential drawbacks are manifold, mainly described in terms of data security and privacy-related issues. The findings contribute to re...