@misc{13334, abstract = {{Retrieval-augmented generation (RAG) based on large language models (LLMs) has established itself as a key technology for combining domain-specific information with generative language skills, thereby providing transparent, up-to-date information. Many firms are already piloting such LLM-based information systems, but report a high degree of complexity in planning and implementation. A generally accepted regulatory framework that consistently maps key decisions is not yet available to companies. This article therefore presents a multi-level system that organizes design decisions throughout the configuration process. This framework is intended to support users in the planning, realizing, evaluation, and further development of an LLM-based information system. To achieve this goal, a qualitative-empirical research design was chosen. First, publications from the period 2022 to 2025 were identified and selected using a systematic literature search in accordance with the PRISMA guideline. The selected publications were then evaluated using a qualitative content analysis. The result is a system that was reviewed, revised and finalized at an expert workshop.}}, author = {{Ullrich, Dominik and Wallys, Jens and Hinrichsen, Sven}}, booktitle = {{Intelligent Human Systems Integration (IHSI 2026): Disruptive and Innovative Technologies}}, editor = {{Ahram, Tareq and Karwowski, Waldemar and Giraldi , Laura and Benelli , Elisabetta}}, isbn = {{978-1-964867-76-2}}, issn = {{2771-0718}}, keywords = {{Retrieval-Augmented Generation, LLM-Based Information System, Conceptual Framework}}, location = {{Florence}}, pages = {{63--73}}, publisher = {{AHFE International}}, title = {{{Conceptual Framework for Designing Domain-Specific LLM-Based Information Systems}}}, doi = {{10.54941/ahfe1007065}}, volume = {{200}}, year = {{2026}}, } @misc{13678, abstract = {{The previous methodology for optimizing CO2 emissions and electricity costs in industrial applications is extended by integrating dynamic load shifting with battery energy storage. Building on earlier work that employed Mixed-Integer Linear Programming (MILP) to manage a stationary battery based on real-time electricity prices and CO2 intensity signals, two industrial machines and one electric vehicle (EV) are now incorporated as additional shiftable loads. These new elements introduce further operational constraints while enhancing energy management flexibility. The framework employs an adjustable weighting factor λ to balance environmental impact and cost, and comparative analyses across three scenarios—battery-only, load-shifting-only, and combined—demonstrate nearly additive CO2 reductions alongside non-additive cost improvements, underscoring the synergistic potential for environmental benefits despite diminishing cost returns. Moreover, validation against dynamic programming confirms the MILP approach’s accuracy and computational efficiency.}}, author = {{Mousavi, Seyed Davood and Schulte, Thomas}}, booktitle = {{2025 5th International Conference on Electrical, Computer and Energy Technologies (ICECET)}}, keywords = {{Feeds, Antennas, System-on-chip, Application specific integrated circuits, Life cycle assessment, Product lifecycle management, Radio access networks, Regional area networks, Smart devices, OWL}}, location = {{Paris, France }}, publisher = {{IEEE}}, title = {{{Enhanced Dynamic Optimization for CO2 Reduction and Cost Savings through Load Shifting in Smart Factories}}}, doi = {{10.1109/icecet63943.2025.11472530}}, year = {{2026}}, } @misc{12981, abstract = {{The aim of the study was to develop an alternative husbandry system for Japanese quail in a step-by-step procedure. The effects of various floor and nest variants on animal health, eggshell contamination and performance in three housing systems (alternative housing system, AHS; conventional cage system, CCS; floor housing system, FHS) were tested in altogether four laying periods, two of which are described in more detail. The analysis revealed that the plastic grid floor in AHS achieved the poorest results for toe and foot pad hyperkeratosis and foot pad dermatitis. Heavier quail showed more toe pad hyperkeratosis. The claw length was longest in CCS and shortest in FHS. Plumage damage on the head developed sooner and more often in CCS. Heavier quail showed significantly less plumage damage on the head. In general, the plumage condition of quail was better in FHS than in CCS and AHS. For eggshell hygiene, a higher microbial load was found on eggs from FHS, and there were no clear differences between CCS and AHS. The number of second-choice eggs was smallest in CCS and highest in FHS. Particularly the high soiling of eggs that were laid in the litter in FHS stood out. In summary, environmental enrichment had a positive effect on animal health, and FHS achieved the best results. Concerning eggshell hygiene and economic efficiency, the situation is the opposite. A floor material in AHS that suits both foot health and eggshell hygiene was not found, suggesting a need for further research.}}, author = {{Wolf, Lisa and Hohenfeld, Marie-Anna and Rathmann, Lucas and Weinmann, Larissa and Schreiter, Ruben and Schmidt, Paul and Hiereth, Stephanie and Ulrich, Sebastian and Straubinger, Reinhard and Damme, Klaus and Erhard, Michael and Schwarzer, Angela and Hofmann, Philipp and Louton, Helen and Bergmann, Shana}}, booktitle = {{European poultry science : EPS = Archiv für Geflügelkunde}}, issn = {{1612-9199 }}, keywords = {{Alternative housing, Foot pad dermatitis, Animal welfare, Husbandry system, Environmental enrichment}}, number = {{1-2}}, publisher = {{Ulmer}}, title = {{{Impact of various husbandry environments on animal health, eggshell hygiene and performance of Japanese quail layers (Coturnix japonica domestica)}}}, doi = {{10.1016/j.eups.2025.100004}}, volume = {{89}}, year = {{2025}}, } @misc{13293, abstract = {{The performance of large language models (LLMs) has improved significantly in recent years, with the result that they are now used in many companies in various industries. However, the design of a company-specific information system involving an LLM is associated with a large number of decisions. This leads to a high level of complexity in the design task. Against this background, companies need a structured approach that methodically supports the planning, development, implementation and long-term maintenance of LLM-based information systems so that domain- and company-specific requirements are taken into account as a result. This article therefore describes a method that supports the design, introduction and maintenance process of an LLM-based information system. The method consists of a process model and a list of design principles, which are also referred to as success factors. The process model developed is based on the proven six-stage REFA planning system. To identify and describe success factors, a systematic literature search was carried out. Based on an analysis of the contents of individual literature sources, success factors for the design of LLM-based information systems were identified. These success factors relate, for example, to the quality of the data provided, data security, user-centered system design and feedback mechanisms for improving information output.}}, author = {{Hinrichsen, Sven and Herbort, Robin and Green, Dominik and Adrian, Benjamin}}, booktitle = {{Human Interaction and Emerging Technologies (IHIET 2025)}}, editor = {{Ahram, Tareq and Motschnig, Renate }}, isbn = {{978-1-964867-73-1}}, issn = {{2771-0718}}, keywords = {{Large language model, Information system, Retrieval augmented generation}}, location = {{Vienna}}, publisher = {{AHFE}}, title = {{{How to Design an Operation-Specific LLM-Based Information System}}}, doi = {{10.54941/ahfe1006709}}, volume = {{197}}, year = {{2025}}, } @misc{13321, abstract = {{This study explores the feasibility and potential of integrating dish–Stirling systems (DSSs) into multigeneration energy systems, focusing on their ability to produce both thermal and electrical energy. By leveraging the concentrated solar power capabilities of DSSs, this research examines their performance relative to alternative solutions such as photovoltaic (PV) systems and solar heating. A 25 kW Stirling Energy Systems (SES) DSS served as the basis for the analysis. Simulations were performed for local 2022 weather conditions in Germany. The study employed a detailed modeling approach using the NREL System Advisor Model (SAM) to quantify the energy outputs and evaluate the system efficiencies. The results indicate that the DSS achieved an electrical efficiency of 25% and a combined efficiency of 78% when accounting for the maximum thermal energy generated. Seasonal analysis highlights the adaptability to fluctuating energy demands, with advantages in winter heating applications. Comparative evaluations revealed DSSs as a viable cogeneration alternative to standalone PV systems and solar heaters, offering reduced environmental impacts and enhanced energy efficiency. Future work will address real-world operational conditions, including thermal storage and multigeneration integration, positioning the DSS as a sustainable solution for renewable energy generation.}}, author = {{Klepp, Georg Heinrich}}, booktitle = {{Sustainability}}, issn = {{2071-1050}}, keywords = {{dish–Stirling system, multigeneration renewable energy systems, cogeneration, solar}}, location = {{Mallorca / Spain }}, number = {{3}}, publisher = {{MDPI AG}}, title = {{{Solar Stirling for Renewable Energy Multigeneration Systems}}}, doi = {{10.3390/su17031257}}, volume = {{17}}, year = {{2025}}, } @misc{13351, abstract = {{Sheltered workshops face the challenge of meeting their manufacturing objectives while considering the individual competencies and assistance needs of persons with disabilities. Moreover, work processes in sheltered workshops are weakly structured, allowing for frequent task interruptions and changes based on the preferences of impaired work persons. While the Industry 4.0 literature provides many real-time scheduling algorithms for incorporating multiple objectives and constraints, these algorithms fall short of the characteristics of sheltered workshops. The resource-constrained project scheduling problem (RCPSP) is an optimization problem for computing manufacturing plans considering multiple objectives and resource constraints. Among many different RCPSP variants proposed in the literature, the multi-skill RCPSP (MSRCPSP) variant considers the individual skills of work persons when generating manufacturing plans. With the ongoing digital transformation of enterprises, new assistance systems enter the market, providing individual support to impaired work persons and compensating for lacking skills and abilities. This paper proposes an MSRCPSP variant that incorporates assistance systems and learning tasks compensating for competence gaps in the skill matrix of impaired work persons. Furthermore, it decomposes tasks into individual work objects, which accounts for frequent task interruptions and task preferences of work persons. The algorithm is described and demonstrated using a manufacturing data set from an actual sheltered workshop. In a small evaluation study, the algorithm is tested by scheduling two impaired work persons in the assembly department of a medium-sized manufacturing company in the primary labor market. The evaluation study proves its real-world applicability and the suitability of scheduling algorithms for participation and inclusive work.}}, author = {{Herrmann, Jan-Phillip and Mordaschew, Viktoria and Tackenberg, Sven}}, booktitle = {{Procedia Computer Science}}, issn = {{1877-0509}}, keywords = {{Scheduling, Sheltered Workshops, Assistance System, Persons with Disabilities}}, pages = {{1329--1338}}, publisher = {{Elsevier BV}}, title = {{{A multi-skill RCPSP variant for persons with disabilities in sheltered workshops}}}, doi = {{10.1016/j.procs.2024.01.131}}, volume = {{232}}, year = {{2024}}, } @misc{11256, abstract = {{Die vorliegende Arbeit befasst sich mit der konkreten Frage nach dem Einfluss von Video on Demand-Diensten (im weiteren Verlauf der Arbeit entsprechend mit VoD abgekürzt), wie beispielsweise „Netflix“ oder „Amazon Prime Video“, auf die traditionelle Kinokultur. Um diese Leitfrage beantworten zu können, wird sie in einzelne Bereiche. Hierfür werden folgende weitere Fragestellungen behandelt: 1. Beeinflusst die Art, bzw. der Typ eines Kinos die jeweilige Besucheranzahl? 2. Wirkt sich eine, seitens der VoD-Dienste angestrebte, Verkürzung der sog. „Auswertungskette“ negativ auf den (deutschen) Kinomarkt aus? 3. Beeinflusst Binge-Watching die Attraktivität eines Kinobesuches und den damit einhergehenden Filmkonsum? Neben einer literaturbasierten Recherche wurde zur Beantwortung dieser Leitfragen auch eine Online-Umfrage durchgeführt, welche hauptsächlich quantitative Forschungsmethoden verwendete, um eine mögliche Trendentwicklung zu beobachten. Durch die geringe Teilnehmerquote (n = 56) aber auch die ungleiche Verteilung der einzelnen Altersgruppen, wurden die Ergebnisse dieser Umfrage nicht als absoluter Beleg oder Widerlegung von einzelnen Fragen verwendet. Lediglich die Ableitung möglicher Trendentwicklungen konnte in diesem Fall vorgenommen werden.}}, author = {{Linß, Eric}}, keywords = {{Kino, Video on Demand}}, pages = {{89}}, publisher = {{Technische Hochschule Ost-Westfalen Lippe}}, title = {{{Der Einfluss von Video on Demand Diensten auf die Kinokultur}}}, year = {{2024}}, } @misc{11323, author = {{Kirk, Rhona}}, keywords = {{YouTube Kids, YouTube, Social Media, Video-on-Demand, Medien, Kinder, Kindermedien, Google}}, pages = {{40}}, publisher = {{Technische Hochschule Ostwestfalen-Lippe}}, title = {{{Die Internetplattform YouTube Kids: Entstehung, Inhalte und Nutzerverhalten von Kindern}}}, year = {{2024}}, } @misc{11997, abstract = {{In Germany, individuals unable or not yet able to return to the general labor market due to disabilities are employed in sheltered workshops which are called WfbM (“Werkstätten für behinderte Menschen”). These organizations are required to earn the wages for the aforementioned group of people by offering market services. These services include, in particular, assembly activities. However, WfbM face the challenge that customer orders tend to become more complex, especially as a result of an increased number of product variants. This development not only has an impact on the work in WfbM, but also makes it much more difficult to achieve the desired inclusion of people with disabilities in the general labor market. Bearing this in mind, the research question addressed in this article can be stated as such: How far can the use of an informational assistance system compensate for performance deficits of people with disabilities in the context of assembly? The results of the conducted laboratory study show that the implementation of an assistance system can help to reduce existing barriers and challenges resulting from the mismatch between requirements of the general labor market and the performance characteristics of people with cognitive impairments. Practical Relevance: For people with disabilities, the use of assistance systems opens up new opportunities for participation in the general labor market and thus makes an important contribution to implementing the requirements of the “Bundesteilhabegesetz” (a law to strengthen participation of people with disabilities in Germany).}}, author = {{Bendzioch, Sven and Hinrichsen, Sven}}, booktitle = {{Zeitschrift für Arbeitswissenschaft (ZfA)}}, issn = {{2366-4681}}, keywords = {{Informational Assistance System, People with Disabilities, Manual Assembly, Image Processing System, Laboratory Study}}, number = {{2}}, pages = {{240--253}}, publisher = {{Springer-Verlag GmbH }}, title = {{{Potentials of an informational assembly assistance system for persons with cognitive disabilities — Results of a laboratory study}}}, doi = {{10.1007/s41449-024-00414-9}}, volume = {{78}}, year = {{2024}}, } @misc{12209, abstract = {{Net ecosystem production (NEP) is an important indicator of lake ecosystem function and integrity. An earlier study, restricted to one geographical region, indicated that oxygen saturation levels (DO%) might be used to predict daily NEP in shallow lakes. To test the generality of the method, we used DO% data collected in a standardised pan-European mesocosm experiment with contrasting trophic states and water levels covering a large climate gradient (from Sweden to Turkey). We corroborated these data with process-based DO simulations. The NEP ~ DO% relation depended on factors influencing gas transfer: water depth and wind. The NEP ~ DO% relation per volume became weaker with increasing depth (1–2 m) but was independent of depth when area based. Simulations indicated that the marginalisation of the depth was sensitive to wind conditions. Trophic status, temperature and light showed no or only marginal (climate zone) effects (experimental data), while the simulations indicated influence of those factors under particular wind–depth conditions. We confirmed that when considering also wind and depth effects, midday DO% potentially provides reliable estimates of daily NEP. Therefore, historical monitoring data of DO% might be used to estimate NEP, and process-based oxygen models may be valuable tool therein. We encourage further tests.}}, author = {{Cao, Yu and Scharfenberger, Ulrike and Shatwell, Tom and Adrian, Rita and Agasild, Helen and Angeler, David G. and Beklioğlu, Meryem and Çakıroğlu, Ayşe ldil and Hejzlar, Josef and Papastergiadou, Eva and Šorf, Michal and Stefanidis, Kostas and Søndergaard, Martin and Zingel, Priit and Jeppesen, Erik}}, booktitle = {{Hydrobiologia : acta hydrobiologica, hydrographica, limnologica et protistologica }}, issn = {{1573-5117}}, keywords = {{Metabolism, Simple models, Process-based models, Cross-system analyses}}, number = {{2}}, pages = {{471--487}}, publisher = {{Springer}}, title = {{{Predicting daily net ecosystem production in shallow lakes from dissolved oxygen saturation levels: a pan-European mesocosm experiment and modelling approach}}}, doi = {{10.1007/s10750-024-05714-z}}, volume = {{852}}, year = {{2024}}, } @misc{12797, abstract = {{Sheltered workshops face the challenge of meeting their manufacturing objectives while considering the individual competenciesand assistance needs of persons with disabilities. Moreover, work processes in sheltered workshops are weakly structured, allowing for frequent task interruptions and changes based on the preferences of impaired work persons. While the Industry 4.0 literature provides many real-time scheduling algorithms for incorporating multiple objectives and constraints, these algorithms fall short of the characteristics of sheltered workshops. The resource-constrained project scheduling problem (RCPSP) is an optimization problem for computing manufacturing plans considering multiple objectives and resource constraints. Among many different RCPSP variants proposed in the literature, the multi-skill RCPSP (MSRCPSP) variant considers the individual skills of work persons when generating manufacturing plans. With the ongoing digital transformation of enterprises, new assistance systems enter the market, providing individual support to impaired work persons and compensating for lacking skills and abilities. This paper proposes an MSRCPSP variant that incorporates assistance systems and learning tasks compensating for competence gaps in the skill matrix of impaired work persons. Furthermore, it decomposes tasks into individual work objects, which accounts for frequent task interruptions and task preferences of work persons. The algorithm is described and demonstrated using a manufacturing data set from an actual sheltered workshop. In a small evaluation study, the algorithm is tested by scheduling two impaired work persons in the assembly department of a medium-sized manufacturing company in the primary labor market. The evaluation study proves its real-world applicability and the suitability of scheduling algorithms for participation and inclusive work. }}, author = {{Herrmann, Jan-Phillip and Mordaschew, Viktoria and Tackenberg, Sven}}, booktitle = {{5th International Conference on Industry 4.0 and Smart Manufacturing (ISM)}}, editor = {{Longo, F. and Shen, W. and Padovano, A.}}, issn = {{1877-0509}}, keywords = {{Scheduling, Sheltered Workshops, Assistance System, Persons with Disabilities}}, location = {{Lisbon, PORTUGAL}}, pages = {{1329--1338}}, publisher = {{Elsevier BV}}, title = {{{A multi-skill RCPSP variant for persons with disabilities in sheltered workshops}}}, doi = {{10.1016/j.procs.2024.01.131}}, volume = {{232}}, year = {{2024}}, } @misc{12813, abstract = {{Autonomous Mobile Robots, as the advanced version of Automated Guided Vehicles have received a lot of interest and recognition in recent years. Simultaneous Localization and Mapping (SLAM) techniques enable the vehicles to independently navigate and map their surroundings so that they can drive autonomously in changing and uncharted areas. Due to the increasing importance and contributive development of SLAMs for automated guided vehicles and autonomous mobile robots, this study seeks to provide an in-depth analysis of well-known SLAM techniques developed and applied during the previous ten years. Well-known SLAM algorithms considered in this paper include GMapping, Cartographer, LIO-SAM, and so on. They are mainly examined and compared from the viewpoints of basic principles, sensor requirements, computing complexity, and performance. The aim of this paper is to offer insights into various SLAM approaches to researchers, practitioners, and developers in the field of automated guided vehicles and autonomous mobile robots, facilitating the selection of suitable SLAM methods for specific applications and fostering innovation in autonomous navigation and mapping.}}, author = {{Li, Li and Schulze, Lothar and Kalavadia, Kunal Satish}}, booktitle = {{5th International Conference on Industry 4.0 and Smart Manufacturing (ISM)}}, editor = {{Longo, F. and Shen, W. and Padovano, A.}}, issn = {{1877-0509}}, keywords = {{Automated Guided Vehicle, Autonomous Mobile Robot, Simultaneous Localization and Mapping, Robot Operating System}}, location = {{Lisbon, PORTUGAL}}, pages = {{2867--2874}}, publisher = {{Elsevier BV}}, title = {{{Promising SLAM Methods for Automated Guided Vehicles and Autonomous Mobile Robots}}}, doi = {{10.1016/j.procs.2024.02.103}}, volume = {{232}}, year = {{2024}}, } @misc{10783, abstract = {{The development trend in manual assembly towards increasing demands in terms of quality, variety, and cost pressure makes the transition for people with cognitive disabilities to the general labor market extremely difficult. Nevertheless, this employment sector is a central component of many activities in a sheltered workshop. Therefore, this paper investigates the use of an informational assistance system for persons with cognitive impairments to close the gap between the characteristics of this group and the operational requirements. In this way, the transition from the sheltered workshop to the general labor market will be facilitated and promoted.}}, author = {{Bendzioch, Sven and Hinrichsen, Sven}}, booktitle = {{Human Interaction & Emerging Technologies (IHIET 2023): Artificial Intelligence & Future Applications}}, issn = {{2771-0718}}, keywords = {{Manual Assembly, Informational Assistance System, Image Processing System, People with Disabilities}}, location = {{NIzza}}, pages = {{548--556}}, publisher = {{AHFE International}}, title = {{{Informational Assistance System – a Key to Self-Empowerment of Persons with Cognitive Disabilities in Manual Assembly?}}}, doi = {{10.54941/ahfe1004061}}, volume = {{11}}, year = {{2023}}, } @misc{10962, abstract = {{The increasing number of product artifacts (e.g., mechanical or electronic components, software functions, documents) confronts small and medium-sized companies with the challenge of assessing change effects. The lack of knowledge of artifact relationships causes problems, such as outdated documentation, lack of coordination with affected disciplines, or delayed changes. The Design Structure Matrix (DSM) can clearly represent the elements and relationships of complex systems. This paper presents an assistance system for intuitive visualization of engineering change effects using existing DSM-based methods for complexity management. The implemented algorithms compute graph layouts, cluster analyses, and change predictions in the form of change risk, time, and cost. An application example of a 3D-printed intelligent lamp demonstrates the approach's viability. The paper concludes with a discussion of the benefits and future activities.}}, author = {{Herrmann, Jan-Phillip and Tackenberg, Sven and Trojanowski, Christoph and Pankrath, Carolin and Imort, Sebastian and Deuter, Andreas}}, booktitle = {{DS 126: Proceedings of the 25th International DSM Conference (DSM 2023)}}, editor = {{Stowe, Harold and Browning, Tyson R. and Eppinger, Steven D. and Trauer, Jakob and Langner, Christopher and Kreimeyer, Matthias and Isaksson, Ola and Panarotto, Massimo and Brahma, Arindam}}, keywords = {{Graph-based Visualization, Assistance System, Engineering Change Management, Complexity Management}}, location = {{Gothenburg, Sweden}}, pages = {{58--67}}, publisher = {{The Design Society}}, title = {{{Assistance System for graph-based 3D Visualization of Design Structure Matrices}}}, doi = {{10.35199/dsm2023.07}}, year = {{2023}}, } @misc{11445, abstract = {{Predicting human decisions is a central challenge for planning and controlling production with weakly structured processes. Thus, workers’ decisions regarding the processing strategies and the temporal sequence of tasks to be processed are to be determined prospectively. Accordingly, there is a need to review methods for preference elicitation to develop individual predictive decision models. This paper presents a systematic literature review and discussion of 42 publications on predictive decision models and decision attributes. Methods for eliciting decision-making knowledge from manufacturing workers as part of the modeling process and decision model validation methods are reviewed and discussed in light of their predictive validity for individual task selection. The article synthesizes the recent literature for predicting human decision-making in manufacturing using artificial intelligence methods. Along with the review results, a future research agenda is proposed for modeling and simulating human decision-making in manufacturing. Knowledge about human preferences and the successful prediction of workers’ decision-making in manufacturing helps companies predict manufacturing objectives and derive organizational and work design measures.}}, author = {{Herrmann, Jan-Phillip and Tackenberg, Sven and Nitsch, Verena}}, booktitle = {{IEEE Access}}, issn = {{2169-3536}}, keywords = {{Artificial intelligence, assistance system, human decision-making, manufacturing}}, pages = {{141172--141191}}, publisher = {{IEEE}}, title = {{{Predicting Human Decision-Making for Task Selection in Manufacturing: A Systematic Literature Review}}}, doi = {{10.1109/access.2023.3340626}}, volume = {{11}}, year = {{2023}}, } @misc{12875, abstract = {{Manufacturing systems based on Industry 4.0 concepts provide a greater availability of data and have modular characteristics enabling frequent changes. This raises the need for new security engineering concepts that cover the increasing complexity and frequency of mandatory security risk assessments. In contrast, the current standardization landscape used for the assessment of these systems only offers abstract, static, manual, and resource-intensive procedures. Therefore, this work proposes a method that further specifies the IEC 62443 aiming to automate the security risk assessments in such a way that manual efforts can be reduced and a consistent quality can be achieved. The methodology is presented using network segmentation as a guiding example and consists of four main steps: Information collection based on a process analysis, information formalisation with a semi-formal model, information usage applying first order logic to extract expert knowledge, and information access using the concept of the digital twin. In addition, the applicability of the IEC 62443 standard to the risk assessment of modular manufacturing systems is evaluated.}}, author = {{Ehrlich, Marco and Bröring, Andre and Diedrich, Christian and Jasperneite, Jürgen}}, booktitle = {{Automatisierungstechnik : AT }}, issn = {{2196-677X}}, keywords = {{sasset administration shell, automation, information model, modular manufacturing system, risk assessment, security}}, number = {{6}}, pages = {{453--466}}, publisher = {{Walter de Gruyter GmbH}}, title = {{{Towards automated risk assessments for modular manufacturing systems}}}, doi = {{10.1515/auto-2022-0098}}, volume = {{71}}, year = {{2023}}, } @misc{7739, abstract = {{Employees in mixed-model assembly perform much informational work by constantly making decisions about the part to be assembled, the tool to be used or the working method to be applied. The proportion of informational work in manual assembly is likely to increase, since more and more products are configured according to customer demands and additional functions are integrated. Whereas assembly has so far been understood primarily as energetic work, the informational aspects of assembly work will have to be considered to a greater extent in the future. Assembly system design is thus more and more a domain of cognitive ergonomics, whereas in the past the focus was on biomechanical aspects. Taking this into consideration, the design of assembly instructions in line with individual requirements is becoming increasingly important. This article therefore discusses important design principles of such instructions.}}, author = {{Hinrichsen, Sven and Bläsing, Dominic}}, booktitle = {{Human Interaction & Emerging Technologies (IHIET-AI 2022): Artificial Intelligence & Future Applications }}, editor = {{Ahram, Tareq and Taiar, Redha }}, keywords = {{Assembly Instruction, Compatibility, Assistance System Manual Assembly, Information Management}}, location = {{Lausanne}}, publisher = {{AHFE Open Access}}, title = {{{How to Design Assembly Instructions}}}, doi = {{10.54941/ahfe100838}}, volume = {{23}}, year = {{2022}}, } @misc{12796, abstract = {{This Design-Based Research (DBR) project aims to develop an intelligent tutoring system (ITS) for higher education. The system will collect teaching and learning materials in audio and video formats (e.g., podcasts, lecture recordings, screencasts, and explainer videos), and store them on a learning experience platform (LXP). Then, the ITS will process them with the help of speech recognition to gain data which, in turn, will be used to power further applications: Using artificial intelligence (AI), the platform will allow users to search the materials, automatically compiling them according to criteria like lesson subject, language, medium, or required prior knowledge. By the end of the last DBR cycle, the ITS will also provide a more active form of support: It will automatically generate exercises based on predefined patterns and teaching materials, thus allowing learners to check up on their learning progress autonomously. In order to closely match the ITS's features to the needs and learning habits of students in higher education, the development of this AI-based tutoring system is accompanied by an interdisciplinary team which will continuously re-evaluate and adapt the concept over the course of several DBR cycles. Our goal is to derive implications for the system's technical development by collecting and evaluating educational research data (mixed methods design; primary and secondary research methods).}}, author = {{Schmohl, Tobias and Schelling, Kathrin and Go, Stefanie and Thaler, Katrin Jana and Watanabe, Alice}}, booktitle = {{Proceedings of the 14th International Conference on Computer Supported Education - Vol. 2}}, editor = {{Cukurova, Mutlu and Rummel, Nikol and Gillet, Denis and McLaren, Bruce and Uhomoibhi, James }}, keywords = {{Artificial Intelligence in Higher Education, Design-based Research, Intelligent Tutoring System, Participatory Technology Design, Scoping Review}}, location = {{Online}}, pages = {{179--186}}, publisher = {{SCITEPRESS - Science and Technology Publications}}, title = {{{Development, Implementation and Acceptance of an AI-based Tutoring System: A Research-Led Methodology}}}, doi = {{10.5220/0011068500003182}}, year = {{2022}}, } @misc{12817, abstract = {{Sub-optimal control policies in intersection traffic signal controllers (TSC) contribute to congestion and lead to negative effects on human health and the environment. Reinforcement learning (RL) for traffic signal control is a promising approach to design better control policies and has attracted considerable research interest in recent years. However, most work done in this area used simplified simulation environments of traffic scenarios to train RL-based TSC. To deploy RL in real-world traffic systems, the gap between simplified simulation environments and real-world applications has to be closed. Therefore, we propose LemgoRL, a benchmark tool to train RL agents as TSC in a realistic simulation environment of Lemgo, a medium-sized town in Germany. In addition to the realistic simulation model, LemgoRL encompasses a traffic signal logic unit that ensures compliance with all regulatory and safety requirements. LemgoRL offers the same interface as the well-known OpenAI gym toolkit to enable easy deployment in existing research work. To demonstrate the functionality and applicability of LemgoRL, we train a state-of-the-art Deep RL algorithm on a CPU cluster utilizing a framework for distributed and parallel RL and compare its performance with other methods. Our benchmark tool drives the development of RL algorithms towards real-world applications.}}, author = {{Müller, Arthur and Rangras, Vishal and Ferfers, Tobias and Hufen, Florian and Schreckenberg, Lukas and Jasperneite, Jürgen and Schnittker, Georg and Waldmann, Michael and Friesen, Maxim and Wiering, Marco}}, booktitle = {{20th IEEE International Conference on Machine Learning and Applications (ICMLA)}}, editor = {{Wani, M. Arif and Sethi, Ishwar and Shi, Weisong and Qu, Guangzhi and Stan Raicu, Daniela and Jin, Ruoming }}, isbn = {{978-1-6654-4337-1}}, keywords = {{deep reinforcement learning, traffic signal control, intelligent transportation system, traffic simulation}}, location = {{Online}}, pages = {{507--514}}, publisher = {{IEEE}}, title = {{{Towards Real-World Deployment of Reinforcement Learning for Traffic Signal Control}}}, doi = {{10.1109/icmla52953.2021.00085}}, year = {{2022}}, } @misc{8888, abstract = {{Diese Arbeit handelt von der Frage, wie Tonaufnahmen-basierte Lernprozesse im Learning Management System der Hochschule für Musik Detmold, Moodle, erweitert werden können. Dazu werden LMS zunächst definiert und anschließend in die Bildungslandschaft eingeordnet. Daraufhin wird der Status Quo betrachtet mit der Feststellung, dass ein Bedarf an Werkzeugen besteht. Dieser Bedarf wurde durch die Programmierung zweier Anwendungen adressiert, die eine Integration im LMS ermöglichen und damit zu einer erhöhten Nutzbarkeit von Tonaufnahmen und musikalischen Inhalten führen sollen. Zum einen ist das eine Implementation des DTW Algorithmus, mittels welchem sich Synchronisationsdaten zwischen zwei verschiedenen Musikdarstellungen desselben Stückes berechnen lassen. Damit ließe sich bspw. ein Interface erstellen, auf dem die Anzeige der Musikwiedergabe mit der Anzeige einer Notenpartitur synchronisiert wird. Die zweite Anwendung fällt in den Bereich des maschinellen Lernens – es wurde ein automatischer Instrumentenklassifizierer geschrieben. Dieser eignet sich zur Erstellung von automatischen Taggings, zwecks Organisation von Daten und Gehörübungen. Die Nutzung einer CNN-Architektur hat sich dabei als effektiv erwiesen: Nach insgesamt 39 Lernepochen und knapp 7 Millionen gelernten Parametern konnte eine Genauigkeit von 95% erzielt werden. Als Datensatz diente die frei verfügbare Aufnahmensammlung des britischen Philharmonia Orchesters (vgl. Thorben Dittes). Im zweiten Kapitel soll ein Abstecken der Zwecke der einzelnen Programme die Designentscheidungen informieren, welche daraufhin erläutert werden. Im dritten Teil wird anschließend mit ScoreTube eine DTW Implementation von Berndt et al. zum Vergleich herangezogen, um die vorliegende Arbeit in den aktuellen Diskurs einzuordnen. Der Beitrag endet mit einer Evaluation der Ergebnisse und einem Ausblick auf potenzielle zukünftige Arbeiten.}}, author = {{Treiber, Dennis}}, keywords = {{learning management system, dynamic time warping, deep learning, convolutional neural network}}, pages = {{53}}, publisher = {{Technische Hochschule Ostwestfalen-Lippe}}, title = {{{Die Verwendung von Tonaufnahmen im LMS : Entwicklung spezifischer digitaler Werkzeuge an Hochschulen.}}}, year = {{2022}}, } @misc{9360, abstract = {{Background: Errors can have dangerous consequences, resulting in a preventive strategy in most company-based technical vocational education and training (TVET). On the contrary, errors provide a useful opportunity for learning due to mismatches of mental models and reality and especially to improve occupational safety and health (OSH). Objective: This article presents a didactic concept for developing a learning system based on learning from errors. Learners shall directly experience the consequences of erroneous actions through presenting error consequences in augmented reality to avoid negative, dangerous, or cost-intensive outcomes. Methods: Empirical data prove errors to be particularly effective in TVET. A formal description of a work system is systematically adopted to outline a connection between work, errors concerning OSH, and a didactic concept. A proof-of-concept systematically performs a use case for the developed learning system. It supports critical reflections from a technical, safety, and didactical perspective, naming implications and limitations. Results: By learning from errors, a work-based didactic concept supports OSH competencies relying on a learning system. The latter integrates digital twins of the work system to simulate and visualise dangerous error consequences for identified erroneous actions in a technical proof-of-concept. Results demonstrate the ability to detect action errors in work processes and simulations of error consequences in augmented reality. Conclusion: The technical learning system for OSH education extends existing learning approaches by showcasing virtual consequences. However, capabilities are limited regarding prepared learning scenarios with predefined critical errors. Future studies should assess learning effectiveness in an industrial scenario and investigate its usability.}}, author = {{Goppold, Marvin and Herrmann, Jan-Phillip and Tackenberg, Sven and Brandl, Christopher and Nitsch , Verena}}, booktitle = {{Work}}, issn = {{1875-9270 }}, keywords = {{Vocational education, digital twin, work system design}}, number = {{4}}, pages = {{1563--1575}}, publisher = {{IOS Press}}, title = {{{An error-based augmented reality learning system for work-based occupational safety and health education}}}, doi = {{10.3233/WOR-211243}}, volume = {{72}}, year = {{2022}}, } @inproceedings{9666, abstract = {{In mechanical engineering, individual functional units of a machine are often assembled by one operator at single workstations or at one-piece flow lines. Based on the order information, the required parts are taken from flow racks and assembled step by step to build a functional unit. The existing assembly concepts have two decisive disadvantages in operational practice. First, a large number of components to be provided leads to long walking distances at the work station or line. Second, as the complexity of the assembly task increases, the informational portion of the work increases, so that paper-based information provision can lead to unnecessary assembly errors and additional times. For these reasons, a compacted assembly system has been developed in which, firstly, material is supplied via driven carousels and, secondly, the necessary information is provided to the operator via a cognitive assistance system. The article shows that this concept can reduce walking distances while avoiding assembly errors and additional times.}}, author = {{Hinrichsen, Sven and Nikolenko, Alexander and Beckmann, Nils and Meyer, Frederic}}, booktitle = {{IEEM2022 : IEEE International Conference on Industrial Engineering and Engineering Management (IEEM) : Kuala Lumpur, Malaysia, 07-10 December 2022 }}, isbn = {{978-1-6654-8688-0}}, keywords = {{assembly system, assistance system, complexity}}, location = {{Kuala Lumpur}}, publisher = {{IEEE}}, title = {{{Development of a New Type of Carousel-based Compacted Work System for Mixed-model Assembly in Mechanical Engineering}}}, doi = {{10.1109/ieem55944.2022.9989731}}, year = {{2022}}, } @misc{11803, abstract = {{Sub-optimal control policies in intersection traffic signal controllers (TSC) contribute to congestion and lead to negative effects on human health and the environment. Reinforcement learning (RL) for traffic signal control is a promising approach to design better control policies and has attracted considerable research interest in recent years. However, most work done in this area used simplified simulation environments of traffic scenarios to train RL-based TSC. To deploy RL in real-world traffic systems, the gap between simplified simulation environments and real-world applications has to be closed. Therefore, we propose LemgoRL, a benchmark tool to train RL agents as TSC in a realistic simulation environment of Lemgo, a medium-sized town in Germany. In addition to the realistic simulation model, LemgoRL encompasses a traffic signal logic unit that ensures compliance with all regulatory and safety requirements. LemgoRL offers the same interface as the well-known OpenAI gym toolkit to enable easy deployment in existing research work. To demonstrate the functionality and applicability of LemgoRL, we train a state-of-the-art Deep RL algorithm on a CPU cluster utilizing a framework for distributed and parallel RL and compare its performance with other methods. Our benchmark tool drives the development of RL algorithms towards real-world applications.}}, author = {{Müller, Arthur and Rangras, Vishal and Schnittker, Georg and Waldmann, Michael and Friesen, Maxim and Ferfers, Tobias and Schreckenberg, Lukas and Hufen, Florian and Jasperneite, Jürgen and Wiering, Marco}}, booktitle = {{20th IEEE International Conference on Machine Learning and Applications (ICMLA)}}, editor = {{Wani, M. Arif}}, keywords = {{deep reinforcement learning, traffic signal control, intelligent transportation system, traffic simulation}}, location = {{Pasadena, CA, USA }}, publisher = {{IEEE}}, title = {{{Towards Real-World Deployment of Reinforcement Learning for Traffic Signal Control}}}, doi = {{10.1109/ICMLA52953.2021.00085}}, year = {{2021}}, } @article{7035, abstract = {{Technological progress, upcoming cyber-physical systems, and limited resources confront small and medium-sized enterprises (SMEs) with the challenge of complexity management in product development projects spanning over the entire product lifecycle. SMEs require a solution for documenting and analyzing the functional relationships between multiple domains such as products, software, and processes. The German research project FuPEP “Funktionsorientiertes Komplexitätsmanagement in allen Phasen der Produktentstehung” aims to address this issue by developing an assistance system that supports product developers by visualizing functional relationships. This paper presents the methodology and results of the assistance system’s requirements elicitation with two SMEs. Conducting the elicitation during a global pandemic, we discuss its application using specific techniques in light of COVID-19. We model problems and their effects regarding complexity management in product development in a system dynamics model. The most important requirements and use cases elicited are presented, and the requirements elicitation methodology and results are discussed. Additionally, we present a multilayer software architecture design of the assistance system. Our case study suggests a relationship between fear of a missing project focus among project participants and the restriction of requirements elicitation techniques to those possible via web conferencing tools.}}, author = {{Herrmann, Jan-Phillip and Imort, Sebastian and Trojanowski, Christoph and Deuter, Andreas}}, issn = {{2073-431X}}, journal = {{Computers}}, keywords = {{complexity management, assistance system, product development, systems engineering, design structure matrix, asset administration shell}}, number = {{11}}, title = {{{Requirements Elicitation for an Assistance System for Complexity Management in Product Development of SMEs during COVID-19: A Case Study}}}, doi = {{10.3390/computers10110149}}, volume = {{10}}, year = {{2021}}, } @article{4897, abstract = {{Assistance is becoming increasingly relevant in carrying out industrial work in the context of cyber-physical production systems (CPPSs) and Industry 4.0. While assistance in a single task via a single interaction modality has been explored previously, crossdevice interaction could improve the quality of assistance, especially given the concurrent and distributed nature of work in CPPSs. In this paper, we present the theoretical foundations and implementation of MiWSICx (Middleware for Work Support in Industrial Contexts), a middleware that showcases how multiple interactive computing devices such as tablets, smartphones, augmented/virtual reality glasses, and wearables could be combined to provide crossdevice industrial assistance. Based on activity theory, MiWSICx models human work as activities combining multiple users, artifacts, and cyber-physical objects. MiWSICx is developed using the actor model for deployment on a variety of hardware alongside a CPPS to provide multiuser, crossdevice, multiactivity assistance.}}, author = {{Dhiman, Hitesh and Röcker, Carsten}}, issn = {{2288-4300 }}, journal = {{Journal of Computational Design and Engineering}}, keywords = {{human–technology interaction, human–computer interaction, crossdevice interaction, cyber-physical systems, assistance, smart factory, middleware, actor model, information system design, industry 4.0}}, number = {{1}}, pages = {{428--451}}, publisher = {{Oxford University Press}}, title = {{{Middleware for providing activity-driven assistance in cyber-physical production systems}}}, doi = {{10.1093/jcde/qwaa088}}, volume = {{8}}, year = {{2021}}, } @misc{8326, abstract = {{Gamification is a widely used way of increasing motivation and fun in the use of systems that are not games. By outlining critical aspects in developing gamified systems, we adapted the modelling technique event storming in the context of a special case study where a gamified, collaborative platform was developed. For this purpose, the relationship of event storming and spatial hypertext has been worked out and an event storming extension has been introduced based on spatial hypertext principles. With respect to the case study and further insights in the academic context, we discuss how the emerging nature of event storming could benefit from a specialized spatial hypertext tool.}}, author = {{Grimm, Valentin and Rubart, Jessica}}, booktitle = {{Proceedings of the 4th international Workshop on Human Factors in Hypertext (HUMAN’21)}}, editor = {{Rubart, Jessica and Atzenbeck, Claus}}, isbn = {{978-1-4503-8560-2}}, keywords = {{Spatial Hypertext, Gamification, Event Storming, System Modeling, Collaborative Modeling, Gamified System}}, location = {{Virtual Event, Ireland}}, pages = {{3--10}}, publisher = {{ACM Press}}, title = {{{Modelling Gamified Systems with Event Storming Augmented by Spatial Hypertext}}}, doi = {{10.1145/3468143.3483927}}, year = {{2021}}, } @misc{8380, abstract = {{Currently, numerous single-track railway lines are disused due to economic reasons. However, they could be reactivated for a bidirectional on-demand service traffic by small vehicles that use only one rail. MonoCabs are such small cabin-like vehicles, stabilized by a system of control moment gyroscopes and a moveable mass. They could make an important contribution to improve the mobility offer especially in rural areas. This paper is focused on the vertical stabilization system of the MonoCab. This system is discussed based on a physical three body model which describes the rolling motion of the vehicle, the lateral motion of the mass and the precession motion of the gyroscope. The model is utilized for a cascaded control concept adjusting the vehicle’s roll angle and gyroscope’s gimbal angle. The proposed stabilization concept is capable of compensating both high dynamic disturbances and stationary disturbances (e. g. unbalanced loads and steady wind flows). The concept is analyzed by simulations and experimental investigations utilizing a small scaled test rig and a rapid control prototyping system. Beside transient command responses also the frequency response of the system is experimentally evaluated and used for a validation of the model and theoretical findings.}}, author = {{Griese, Martin and Kottmeier, Fabian and Schulte, Thomas}}, booktitle = {{IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society}}, isbn = {{978-1-6654-3554-3}}, issn = {{2577-1647 }}, keywords = {{Vehicle dynamics, Control moment gyroscope, Control system analysis, Roll stabilization, Monorail vehicles}}, location = {{Toronto, ON, Canada }}, pages = {{pp. 1--6}}, publisher = {{IEEE}}, title = {{{Vertical control of a self-stabilizing monorail vehicle}}}, doi = {{10.1109/IECON48115.2021.9589726}}, year = {{2021}}, } @misc{8385, abstract = {{Currently, numerous single-track railway lines are disused due to economic reasons. However, they could be reactivated for a bidirectional on-demand service traffic by small vehicles that use only one rail. MonoCabs are such small cabin-like vehicles, stabilized by a system of control moment gyroscopes and a moveable mass. They could make an important contribution to improve the mobility offer especially in rural areas. This paper focuses on the analytical modeling and vertical stabilization system of the MonoCab. A nonlinear dynamic model is obtained using the Lagrangian method and subsequently linearized about its equilibrium point. Which is used for the design of the cascade control system. The dynamic analysis of the system is accomplished by comparing between analytically derived model in simulink environment and same structured model in simscape multibody. This system is discussed based on a physical three body model which describes the rolling motion of the vehicle, the lateral motion of the mass and the precession motion of the gyroscope. The model is utilized for a cascaded control concept adjusting the vehicle’s roll angle and gyroscope’s precession angle. The proposed stabilization concept is capable of compensating both high dynamic disturbances and stationary disturbances (e. g. unbalanced loads and steady wind flows). The concept is analyzed by simulations and experimental investigations. Beside transient command responses also the frequency response of the system is experimentally evaluated and used for a validation of the model and theoretical findings. For the experimental validation, a small scaled test rig is used which consists of mechanical frames and flywheels, inverter-fed drives, rotary encoders, an inertial measurement unit (IMU) and a rapid control prototyping system.}}, author = {{Griese, Martin and Mousavi, Seyed Davood and Schulte, Thomas}}, booktitle = {{2021 9th International Conference on Control, Mechatronics and Automation (ICCMA)}}, keywords = {{Vehicle dynamics, Control moment gyroscope, Control system analysis, Roll stabilization, Monorail vehicles}}, location = {{Belval, Luxembourg }}, pages = {{205--210}}, publisher = {{IEEE}}, title = {{{Modeling the Vertical Dynamics of a Self-stabilizing Monorail Vehicle}}}, doi = {{10.1109/ICCMA54375.2021.9646219}}, year = {{2021}}, } @inproceedings{4094, abstract = {{Projection-based assitive systems that guide users through assembly work are on their way to industrial application. Previous research work investigated how people can be supported with such systems. However, there has been little work on the question on how to generate and author sequential instructions for assitive systems. In this paper, we present a new concept and a prototypical implementation of an assitive system that can be taught by demonstrating an assembly process. By using a combination of RGB and depth cameras, we can generate an assembly instruction of Lego Duplo bricks based on the demonstration of a user. This generated manual can later on be used for assisting other users in the assembly process. By our prototype system, we show the technological feasibility of assistive systems that can learn from users.}}, author = {{Büttner, Sebastian and Peda, Andreas and Heinz, Mario and Röcker, Carsten}}, booktitle = {{22nd International Conference on Human-Computer Interaction}}, isbn = {{978-3-030-50343-7}}, keywords = {{Assitive system, Authoring, Instruction generation, Computer vision, Teaching by demonstration}}, location = {{Copenhagen, Denmark}}, pages = {{153--163}}, publisher = {{Springer}}, title = {{{Teaching by Demonstrating – How Smart Assistive Systems Can Learn from Users}}}, doi = {{https://doi.org/10.1007/978-3-030-50344-4_12}}, volume = {{12203}}, year = {{2020}}, } @misc{4100, author = {{Schmohl, Tobias and Schwickert, Susanne and Glahn, Oliver}}, booktitle = {{The Future of Education}}, keywords = {{Artificial Intelligence, intelligent tutoring system, reflection, project-based learning, online-learning, interactive video}}, location = {{Florenz}}, pages = {{309--313}}, publisher = {{Libreriauniversitaria.it}}, title = {{{Conceptual Design of an AI-Based Learning Assistant }}}, doi = {{10.26352/E618_2384-9509}}, year = {{2020}}, } @phdthesis{12717, abstract = {{Der Anstieg der Komplexität in Produktionssystemen stellt eine der größten Herausforderungen für produzierende Unternehmen dar. In der vorliegenden Dissertation werden mögliche Auswirkungen von Komplexität auf die Performance von Produktionsgruppen untersucht. Es werden sechs Studien durchgeführt, die inhaltlich und methodisch aufeinander aufbauen und somit einen vollständigen Forschungsprozess von der initialen Begriffsbestimmung bis hin zur Ableitung von Gestaltungsempfehlungen für die betriebliche Praxis beschreiben. In der Explorationsphase wird zunächst eine qualitative Interviewstudie durchgeführt, um konkrete Treiber für das Phänomen der Komplexität in digitalisierten Arbeitssystemen zu identifizieren. Basierend auf zwei systematischen Literaturstudien wird der Stand der Forschung zu (1) Komplexitätsmodellen und (2) Gruppenperformancemodellen im Kontext von Produktionssystemen strukturiert erarbeitet und das bestehende Forschungsdefizit offengelegt. Auf der Grundlage der Vorstudien wird ein hypothetisches Modell zur Erklärung der Performance von Produktionsgruppen entwickelt, das neben bekannten Einflussgrößen aus der Teamforschung verschiedene Komplexitätsdimensionen berücksichtigt. Die Operationalisierung der latenten Variablen erfolgt mit Hilfe einer weiteren qualitativen Interviewstudie. Das Gruppenperformancemodell wird in einer Fragebogenstudie (n = 455) unter Anwendung der Methode der Strukturgleichungsmodellierung empirisch evaluiert. In der statistischen Auswertung wird u. a. festgestellt, dass ein positiver Zusammenhang zwischen der Aufgabenkomplexität und der Gruppenperformance besteht, der über die Qualität der Zusammenarbeit vermittelt wird. Dahingegen wird ein negativer Zusammenhang zwischen der Komplexität des Gruppendesigns und der Gruppenperformance identifiziert, der ebenfalls über die Qualität der Zusammenarbeit vermittelt wird. Aus den Ergebnissen werden konkrete Empfehlungen für die komplexitätsbezogene Gestaltung von Gruppenarbeit in der Produktion abgeleitet. Darüber hinaus wird eine Metrik zur Erfassung der Komplexität des Arbeitsprozesses von Produktionsgruppen entwickelt und in einer Simulationsstudie evaluiert. Die Metrik kann bereits in Planungsphasen von Produktionssystemen verwendet werden, um alternative arbeitsorganisatorische Gestaltungsoptionen anhand des resultierenden Komplexitätsniveaus für die Produktionsgruppe vergleichend zu analysieren. Zudem können die Auswirkungen unterschiedlicher Qualifikationsprofile auf das Komplexitätsniveau und die Performance einer Produktionsgruppe untersucht werden.}}, author = {{Latos, Benedikt}}, isbn = {{978-3-8440-7744-5}}, keywords = {{Produktionssystem, Komplexes System, Teamwork, Leistungsmessung}}, pages = {{324}}, publisher = {{Shaker Verlag}}, title = {{{Auswirkungen von Komplexität auf die Performance von Produktionsgruppen}}}, doi = {{10.2370/9783844077445}}, volume = {{37}}, year = {{2020}}, } @inproceedings{1900, abstract = {{More and more complex products are being fitted in small batches in manual assembly. Because of this, more information needs to be collected from employees and implemented in appropriate actions. At the same time, the informational design of assembly systems often shows deficits in operational practice. Manual assembly processes can be made more economical, reliable, and human-oriented with the help of informational assistance systems. Testing was carried out in the Laboratory for Industrial Engineering at the Ostwestfalen-Lippe University of Applied Sciences and Arts to verify this potential. Initial results on the use of augmented reality (AR) glasses in comparison to providing information in a paper-based format are presented.}}, author = {{Bendzioch, Sven and Bläsing, Dominic and Hinrichsen, Sven}}, booktitle = {{Human Systems Engineering and Design II Proceedings of the 2nd International Conference on Human Systems Engineering and Design (IHSED2019)}}, editor = {{Ahram, T. and Karwowski, W. and Pickl, S. and Taiar, R.}}, isbn = {{978-3-030-27927-1}}, keywords = {{Worker assistance system, Manual assembly, Human-machine interaction, Informational complexity}}, location = {{Universität der Bundeswehr, München}}, pages = {{20--25}}, publisher = {{Springer Nature}}, title = {{{Comparison of Different Assembly Assistance Systems Under Ergonomic and Economic Aspects}}}, doi = {{https://doi.org/10.1007/978-3-030-27928-8_4}}, volume = {{1026}}, year = {{2019}}, } @inproceedings{4323, abstract = {{The latest generation of head-mounted displays such as HoloLens pro- vide mixed reality capabilities that claim to better integrate the real and virtual worlds. In this paper, we would like the share our experiences in implementing a user interface for an assembly assistance system using the HoloLens. We carried out a preliminary evaluation of the applicability of mixed reality using the per- spective of developers and expert users in an assembly scenario that allows us to operate and compare two interfaces - a state-of-the-art projector display system and the HoloLens. We believe our findings may contribute towards a better un- derstanding of the effects of new display technologies such as the HoloLens in developing and using assistance systems in other fields as well. Areas that may be of future research are also highlighted.}}, author = {{Dhiman, Hitesh and Martinez, Sascha and Paelke, Volker and Röcker, Carsten}}, booktitle = {{HCI in Business, Government, and Organizations}}, editor = {{Fui-Hoon Nah, Fiona and Sophia Xiao, Bo}}, isbn = {{978-3-319-91715-3}}, keywords = {{Human machine interaction, Assembly assistance system, Qualitative study, HoloLens}}, location = {{Las Vegas, NV, USA}}, pages = {{67--78}}, publisher = {{Springer}}, title = {{{Head-Mounted Displays in Industrial AR-Applications: Ready for Prime Time?}}}, doi = {{10.1007/978-3-319-91716-0_6}}, volume = {{10923}}, year = {{2018}}, } @inproceedings{559, abstract = {{The navigation technique has been always an important issue for guiding an automated guided vehicle (AGV). With the development of sensor technology, software engineering, andalgorithms, there is a spectrum of different navigation methods for AGVs. Inorder to avoid the additional environmental installation,so as to increase the flexibility of route planning, but to keep the positioning precision, more sensors, such as light detection and ranging (LIDAR), wheel encoders and gyroscope are installed on the vehicles to be automated. Some intelligent algorithms such as simultaneous localization and mapping (SLAM) algorithms and Monte Carlo localization have been developed for the navigation of vehicles, including position and orientation. The interesting question, especially for the AGVmanufacturers, is: which algorithm is more suitable for which kind of applications. The suitabilityof an algorithm for the navigation of AGVs with facilities of Light Detection and Ranging(LIDAR), encoders and gyroscope ismainly determined by four properties. They are the positioning precision, computational costs, execution time and positioning repeatability. This paper intends to investigate the suitability of an algorithm or a navigation method for AGVs with LIDAR, wheel encoders,and gyroscope. The two aspects of positioningaccuracy and repeatability are especially concerned. A general comparison of different navigation methods and algorithms is given. An experimental platform with a basic vehicle, controlling system and sensors is then developed to further evaluate the algorithms. The hardware components and software components are compatible to robot operating system (ROS). This open-source robotics middleware provides services and tools for creating robot applications. As ROS SLAM nodes, open-source SLAM algorithms can be evaluated relatively easily without any rewriting or modification of the algorithms. As a new research field, there is not jet a SLAM algorithm, which is predominant absolutely.}}, author = {{Li, Li and Schulze, L.}}, booktitle = {{Production Engineering and Management}}, editor = {{Villmer, Franz-Josef and Padoano, Elio}}, isbn = {{978-3-946856-03-0}}, keywords = {{Automatedguided vehicle, Simultaneous localization and mapping, Robot operating system, Light detection and ranging}}, location = {{Lemgo}}, number = {{1}}, pages = {{213--223}}, title = {{{Comparison and Evaluation of SLAM Algorithms for AGV Navigation}}}, year = {{2018}}, } @article{11590, abstract = {{Reading centers provide centralized high-quality diagnostics in ophthalmic clinical trials. Since ophthalmic images are captured in electronic format at peripheral clinics, an integrated workflow for image transfer and creation of structured reports is needed, including quality assurance. The image portal and the study database are separate components. We assessed whether this integration is feasible with trial-related IT standards and built a prototype system as a proof-of-concept. CDISC ODM and OAuth authentication were used to integrate the image portal with x4T-EDC, facilitating automatic data transfer and single sign-on.}}, author = {{Bruland, Philipp and Kathöfer, Ulrike and Treder, Maximilian and Eter, Nicole and Dugas, Martin}}, issn = {{1879-8365}}, journal = {{Studies in health technology and informatics}}, keywords = {{Electronic Data Capture, Reading Center, System Integration}}, pages = {{1254}}, publisher = {{IOS Press}}, title = {{{Integrating x4T-EDC into an Image-Portal to Establish an Ophthalmic Reading Center.}}}, volume = {{245}}, year = {{2017}}, } @article{2014, abstract = {{Industrial applications are in transition towards modular and flexible architectures that are capable of self-configuration and -optimisation. This is due to the demand of mass customisation and the increasing complexity of industrial systems. The conversion to modular systems is related to challenges in all disciplines. Consequently, diverse tasks such as information processing, extensive networking, or system monitoring using sensor and information fusion systems need to be reconsidered. The focus of this contribution is on distributed sensor and information fusion systems for system monitoring, which must reflect the increasing flexibility of fusion systems. This contribution thus proposes an approach, which relies on a network of self-descriptive intelligent sensor nodes, for the automatic design and update of sensor and information fusion systems. This article encompasses the fusion system configuration and adaptation as well as communication aspects. Manual interaction with the flexibly changing system is reduced to a minimum.}}, author = {{Fritze, Alexander and Mönks, Uwe and Holst, Christoph-Alexander and Lohweg, Volker}}, issn = {{1424-8220}}, journal = {{Sensors}}, keywords = {{information fusion, intelligent sensor, knowledge-based system, self-configuration, sensor fusion}}, number = {{3}}, title = {{{An Approach to Automated Fusion System Design and Adaptation}}}, doi = {{ https://doi.org/10.3390/s17030601}}, volume = {{17}}, year = {{2017}}, } @inproceedings{265, abstract = {{The maintenance of a tool for injection molding or forming is usually accompanied by its disassembly and assembly. The duration of the assembly activities is often a large part of the total activity time for the maintenance of the tool. The degree of performance of the employees in the execution of these disassembly and assembly activities is often low. In addition, allowances occur (e.g. searching for work equipment). At the Industrial Engineering Lab of the Ostwestfalen-Lippe University of Applied Sciences, a prototype of an assistance system was developed to support the assembly activities in toolmaking. With the help of this system, the operator is guided step by step through the assembly process. The economic potential of the system exists in the reduction of training times, the avoidance of assembly errors and the increase of labor productivity.}}, author = {{Hinrichsen, Sven and Riediger, Daniel and Unrau, Alexander}}, booktitle = {{2017 IEEE International Conference on Industrial Engineering and Engineering Management (IEEM)}}, isbn = {{978-1-5386-0948-4 }}, keywords = {{injection moulding, machine tools, maintenance engineering, productivity, projection-based assistance system, injection molding tools, assembly activities, assembly process, assembly errors, tool maintenance, disassembly activities, economic potential, Industrial Engineering Lab, Ostwestfalen-Lippe University of Applied Sciences, toolmaking, Tools, Injection molding, Maintenance engineering, Usability, Task analysis, Workstations, Morphology, assembly assistance systems, assistance systems, maintenance of injection molding tools, manual assembly}}, location = {{Singapore}}, number = {{1}}, pages = {{1571--1575}}, title = {{{Development of a Projection-Based Assistance System for Maintaining Injection Molding Tools}}}, doi = {{https://doi.org/10.1109/IEEM.2017.8290157}}, year = {{2017}}, } @inproceedings{4254, abstract = {{The current trend of integrating machines and factories into cyber-physical systems (CPS) creates an enormous complexity for operators of such systems. Especially the search for the root cause of cascading failures becomes highly time-consuming. Within this paper, we address the question on how to help human users to better and faster understand root causes of such situations. We propose a concept of interactive alarm flood reduction and present the implementation of a first vertical prototype for such a system. We consider this prototype as a first artifact to be discussed by the research community and aim towards an incremental further development of the system in order to support humans in complex error situations.}}, author = {{Büttner, Sebastian and Wunderlich, Paul and Heinz, Mario and Niggemann, Oliver and Röcker, Carsten}}, booktitle = {{ Machine Learning and Knowledge Extraction : First IFIP TC 5, WG 8.4, 8.9, 12.9 International Cross-Domain Conference, CD-MAKE 2017, Reggio, Italy, August 29 – September 1, 2017, Proceedings}}, editor = {{Holzinger, Andreas}}, isbn = {{978-3-319-66807-9}}, keywords = {{Alarm flood reduction, Machine learning, Assistive system}}, location = {{Reggio, Italy}}, pages = {{69--82}}, publisher = {{Springer}}, title = {{{Managing Complexity: Towards Intelligent Error-Handling Assistance Trough Interactive Alarm Flood Reduction}}}, volume = {{10410}}, year = {{2017}}, } @phdthesis{11142, abstract = {{This dissertation proposes and investigates an isochronous wireless network for industrial control applications with guaranteed latencies and jitter. Based on a requirements analysis of real industrial applications and the characterisation of the wireless channel, the solution approach is developed. It consists of a TDMA-based medium access control, a dynamic resource allocation and the provision of a global time base for the wired and the wireless network. Due to the global time base, the solution approach allows a seamless and synchronous integration into existing wired Real-time Ethernet systems.}}, author = {{Trsek, Henning}}, isbn = {{978-3-662-49157-7}}, issn = {{2522-8587}}, keywords = {{industrial wireless system, wireless real-time communication, deterministic medium access control, isochronous WLAN, industrial automation}}, publisher = {{Springer }}, title = {{{Isochronous Wireless Network for Real-time Communication in Industrial Automation}}}, doi = {{10.1007/978-3-662-49158-4}}, year = {{2016}}, } @inproceedings{4303, abstract = {{The increasing demand to customize products affects production workers in many industries, as assembly tasks become more complex due to higher product variety. Assistive systems providing instructions at the workplace have been proposed to overcome increasing cognitive demand during assembly tasks. Commercially available assistive systems provide spatially registered instructions, either by using in-situ projections or head-mounted displays (HMDs). As there is little empirical knowledge about the individual advantages and disadvantages of both approaches, we are interested in comparing both types of systems. Through a user study at a manual assembly workplace, we compare both approaches to a paper baseline. Our results reveal that both in-situ instructions and paper instructions lead to significantly faster task completion times and significantly fewer errors than HMDs. Using additional questionnaires and interviews, we are able to identify the shortcomings of HMD-based instructions and discuss the possibilities of using flexible in-situ instructions for worker assistance.}}, author = {{Büttner, Sebastian and Funk, Markus and Sand, Oliver and Röcker, Carsten}}, booktitle = {{9th ACM International Conference on PErvasive Technologies Related to Assistive Environments (PETRA '16) }}, isbn = {{978-1-4503-4337-4}}, keywords = {{Spatial Augmented Reality, Industrial Augmented Reality, Projection-based Augmented Reality, Head-Mounted Display, Manufacturing, Assistive System}}, location = {{Corfu; Greece }}, pages = {{1--8}}, publisher = {{ACM}}, title = {{{Using Head-Mounted Displays and In-Situ Projection for Assistive Systems : A Comparison}}}, doi = {{10.1145/2910674.2910679}}, year = {{2016}}, } @inproceedings{593, abstract = {{Due to the increased individualization of customer demands in the last 20 years, the production systems are required to be more flexible and scalable. It is the samefor the material flow system with automated guided vehicles (AGVs). To realize the flexibility and scalability, it is recommended to decentralized control the vehicles. As an attempt, a concept of swarm intelligence with Radio Frequency Identification (RFID) is proposed and introduced in this article. The concept is supposed to be used for automated guided vehicle systems in which objects have to be transported from place to place. Therefore the object has to be self-organized and has to manage its own transport. In this context the vehicles have to choose the most optimal transportation. Swarm intelligence is a topic which deserves a high level of attention as a method to realize high flexibility and scalability.}}, author = {{Cantauw, Alisa Maria and Li, Li}}, booktitle = {{Department of Production Engineering and Management}}, editor = {{Villmer, Franz-Josef and Padoano, Elio}}, isbn = {{978-3-946856-00-9}}, keywords = {{Swarm intelligence, Automated guided vehicle system, RFID, Internet of things, Multi-agent system}}, location = {{Lemgo}}, number = {{1}}, pages = {{133--143}}, title = {{{Application of Swarm Intelligence for Automated Guided Vehicle Systems}}}, year = {{2016}}, } @inproceedings{2128, abstract = {{We present the concept of a perceptive motor in terms of a cyber-physical system (CPS). A model application monitoring a knitting process was developed, where the take-off of the produced fabric is controlled by an electric motor. The idea is to equip a synchronous motor with a smart camera and appropriate image processing hard- and software components. Subsequently, the characteristics of knitted fabric are analysed by machine-learning (ML) methods. Our concept includes motor-current analysis and image processing. The aim is to implement an assistance system for the industrial large circular knitting process. An assistance system will help to shorten the retrofitting process. The concept is based on a low cost hardware approach for a smart camera, and stems from the recent development of image processing applications for mobile devices [1–4].}}, author = {{Vukovic, Kristijan and Simonis, Kristina and Dörksen, Helene and Lohweg, Volker}}, booktitle = {{Conference on Machine Learning for Cyber-Physical Systems (ML4CPS)}}, keywords = {{Assistance System, Euler Number, Synchronous Motor, Image Processing System, Image Processing Method}}, title = {{{Efficient Image Processing System for an Industrial Machine Learning Task}}}, doi = {{10.1007/978-3-662-48838-6_8}}, year = {{2015}}, } @article{2140, abstract = {{Recent industrial applications are implemented in a modular way, resulting in flexibility during the whole life cycle, i.e., setup, operation, and maintenance. This applies especially to larger applications like logistic, production, and printing processes. Their modular character is resulting from the constantly increasing complexity of such installations, which makes their supervision for securing reliable operation a difficult task: the data of hundreds (if not thousands) of signal sources must be acquired, communicated, and evaluated for system diagnosis. In this contribution we summarize the challenges arising in such applications and show that distributed sensor and information fusion for modular self-diagnosis tackles these challenges. Here, we propose an innovative distributed architecture encompassing intelligent sensor nodes, self-configuring real-time communication networks, and a suitable sensor and information fusion system for condition monitoring. New challenges arise in the context of distributed information fusion systems, which are identified and to which an outlook on future solutions is provided. A number of these solutions have already been discovered, implemented, and are evaluated in the context of a demonstrator, which resembles a real-world printing application.}}, author = {{Mönks, Uwe and Trsek, Henning and Dürkop, Lars and Geneiß, Volker and Lohweg, Volker}}, issn = {{0957-4158}}, journal = {{Mechatronics}}, keywords = {{Cyber-physical systems, Information fusion, Fusion system design, Intelligent sensors, Self-configuration, Intelligent networking}}, number = {{34}}, pages = {{63--71}}, publisher = {{Elsevier}}, title = {{{Towards distributed intelligent sensor and information fusion}}}, doi = {{10.1016/j.mechatronics.2015.05.005}}, year = {{2015}}, } @inproceedings{427, abstract = {{Für Länder mit hohen Lohnkosten eignen sich aus wirtschaftlichen Gründen hauptsächlich hochautomatisierte Montagekonzepte. Für Niedriglohnländer hybride oder ausschließlich manuelle Montagesysteme. Ein ideales Montagekonzept ist so gestaltet, dass es durch wandlungsfähige Eigenschaften beide Ländertypen mit wenig Änderungsaufwand abdecken kann. Der Beitrag behandelt Möglichkeiten und Ansätze, um solch ein wandlungsfähiges, hybrides Montagesystem zu gestalten und erläutert die Realisierung ausgewählter Methoden an einem hybriden Montagesystem der Continental AG.}}, author = {{Hrdina, Jan and Gamber, Thilo Gerhard}}, booktitle = {{ Verantwortung für die Arbeit der Zukunft, Frühjahrskongress der Gesellschaft für Arbeitswissenschaft}}, isbn = {{978-3-936804-18-8}}, keywords = {{hybrides System, Montagesystem, Niedriglohnland, Montagekonzept, hybrides Montagesystem}}, location = {{Karlsruhe}}, publisher = {{GfA-Press}}, title = {{{Einsatz von Methoden der Wandlungsfähigkeit bei einem hybriden Montagesystem}}}, year = {{2015}}, } @inproceedings{665, abstract = {{The requirements of assembly systems are changing, due to trends such as shorter innovation and product lifecycles as well as an increase in the number of product variants and product customization. Certain markets are characterized by demand volatility and short delivery schedules. As a result of shortened product and innovation lifecycles and demand volatility, the assembly system design should be versatile. The aim of this paper is to demonstrate a versatile assembly system which was jointly developed by the Fraunhofer IOSB-INA and the Ostwestfalen-Lippe University of Applied Sciences. }}, author = {{Hinrichsen, Sven and Jasperneite, Jürgen and Schrader, Florian and Lücke, Benedikt}}, booktitle = {{Production Engineering and Management}}, editor = {{Villmer, Franz-Josef and Padoano, Elio}}, keywords = {{Assembly System, Versatility, Modularity}}, location = {{Lemgo}}, number = {{10}}, pages = {{37--45}}, publisher = {{Hochschule Ostwestfalen-Lippe}}, title = {{{Versatile Assembly Systems - Requirements, Design Principles and Examples}}}, year = {{2014}}, } @inbook{10068, abstract = {{Currently, cities are confronting a multitude of challenges including climate change, demographic change, urbanization and land subsidence. Resulting flooding, droughts and other disturbances could lead to water shortages, severe interruptions, hydraulic problems or underutilization of water infrastructure systems. One way that cities can become more resilient is by diversifying their water resources and reducing their dependency on central water infrastructures. Water infrastructure systems consisting of decentral or semi-central partial systems would be more resilient because a failure in these systems would only affect a small part of the urban area. Instead of an incremental improvement of the water infrastructure, there is a need for system innovations that will allow an adaptive development to changing conditions and which will ensure that future sustainability challenges are met. However, moving towards more resilient water technologies is seen as controversial for built-up areas. To answer the question if a transformation to a more resilient water infrastructure in built-up areas is feasible (technically and economically), a balancing and assessment of the corresponding effects have been done by way of comparing a “transformation” scenario with a reference scenario “business as usual”. If one takes a long-term period of observation (70 years), the costs balance of the scenarios “reference” and “transformation” both turn out to be on a comparative level. By contrast, the consumption of environmental resources in the scenario “transformation” is almost twice as low as in the “reference”.}}, author = {{Schramm, Engelbert and Felmeden, Jörg}}, booktitle = {{Resilient Cities 2 : Cities and Adaptation to Climate Change – Proceedings of the Global Forum 2011 }}, editor = {{Zimmermann, Karl Otto}}, isbn = {{978-94-007-9776-5}}, issn = {{2211-2790 }}, keywords = {{Climate change, Eco-efficiency analysis, System innovations, Vulnerability, Water infrastructure}}, location = {{Bonn}}, pages = {{177–186}}, publisher = {{Springer Dordrecht}}, title = {{{Towards More Resilient Water Infrastructures}}}, doi = {{https://doi.org/10.1007/978-94-007-4223-9_19}}, volume = {{2}}, year = {{2012}}, } @inproceedings{2102, abstract = {{Die Zustandsüberwachung erfolgt derzeit in der Regel durch Einsatz spezieller Sensorik, bspw. durch Vibrationsmessungen. Außerdem werden die Antriebe lediglich isoliert betrachtet, eine Zusammenführung anfallender Informationen eines räumlich verteilten Antriebsverbunds findet meist nicht statt. Im Folgenden wird ein neuartiges Motor-as-Sensor-Konzept vorgeschlagen und validiert, das eine antizipatorische Zustandsüberwachung ohne Einsatz zusätzlicher Sensorik allein durch Verarbeitung der phasenbezogenen Motorströme ermöglicht. Zusätzlich wird ein Informationsfusionskonzept vorge-stellt, das die Informationen aller im Verbund beteiligten Antriebe zusammenführt, um darüber eine mit weniger Unsicherheiten behaftete Aussage über den Zustand einer Ap-plikation herbeizuführen. Das Hauptaugenmerk liegt hierbei insbesondere auf der Beherrschung der anfallenden riesigen Datenmengen, die zur Verarbeitung in eingebetteten Systemen reduziert werden müssen.}}, author = {{Voth, Karl and Dicks, Alexander and Lohweg, Volker}}, keywords = {{Sensor- und Informationsfusion, elektrischer Antrieb, Cyber-Physical System, Industrie 4.0, Big Data}}, title = {{{Konfliktlösende Informationsfusion zur Maschinendiagnose am Beispiel von Extrusionsanlagen, 21. Workshop Computational Intelligence, VDI/VDE-Gesellschaft Mess- und Automatisierungstechnik (GMA), 30. November - 02. Dezember 2011, Dortmund}}}, year = {{2011}}, } @inproceedings{4489, abstract = {{In this paper we delineate and compare the functional and structural potential but also shortcomings of two Ambient Assisted Living (AAL) systems, which aim at providing remote care for elder adults living independently at home. One system, a personal emergency response system, is already in use, the other system, the Future Care Lab, presents a holistic tele-medical care setting, which is currently in its conceptualization and test phase at RWTH Aachen University. By learning from the experience with a well-established system in both, restrictions and benefits, implications for a user-centred development for future telemedical systems can be derived.}}, author = {{Beul, Shirley and Klack, Lars and Kasugai, Kai and Möllering, Christina and Röcker, Carsten and Wilkowska, Wiktoria and Ziefle, Martina}}, booktitle = {{Electronic Healthcare}}, editor = {{Szomszor, Martin and Kostkova, Patty }}, isbn = {{978-3-642-23634-1 }}, keywords = {{eHealth, Ambient Assisted Living Telemonitoring, Telecare, Future Care Lab, Personal Emergency Response System, PERS}}, location = {{Casablanca, Morocco}}, pages = {{111--118}}, title = {{{Between Innovation and Daily Practice in the Development of AAL Systems: Learning from the Experience with Today’s Systems}}}, doi = {{10.1007/978-3-642-23635-8_14}}, volume = {{69}}, year = {{2010}}, } @inproceedings{486, abstract = {{Growing market demands on enterprises and the resulting challenges for their organization have been discussed for many years now. The flexibilty and mutability of an enterprise are thereby considered as a significant factor for success.}}, author = {{Zülch, Gert and Gamber, Thilo Gerhard and Stock, Patricia}}, booktitle = {{Advances in Production Management Systems}}, editor = {{Olhager, Jan and Persson, Fredrik}}, isbn = {{978-0-387-74157-4}}, keywords = {{production planning and control, decision-making system, personnel-oriented simulation}}, location = {{Linköping}}, pages = {{337--344}}, publisher = {{Springer}}, title = {{{Methodology for the Analysis of Simulation-Based Decision-Making in the Manufacturing Area}}}, year = {{2007}}, } @inproceedings{4813, abstract = {{This paper presents a formative multi-method evaluation on future gaming systems. Following a scenario-driven approach, quantitative and qualitative methods are employed to elicit feedback from different target user populations. Based on the results of the different evaluation parts, a set of design requirements for future home entertainment systems is derived. These requirements are then used to guide the development process of a ubiquitous computing gaming platform. To demonstrate the usefulness of the gaming platform, a sample application is discussed, which is described in the last section of this paper.}}, author = {{Röcker, Carsten and Magerkurth, Carsten and Haar, Maral}}, booktitle = {{Universal Access in Ambient Intelligence Environments : 9th ERCIM Workshop on User Interfaces for All}}, editor = {{Stephanidis, Constantine and Pieper, Michael}}, isbn = {{978-3-540-71024-0}}, keywords = {{User Interfaces, Pervasive Games, Evaluation, System Development, Tangible User Interfaces, Human Computer Interaction}}, location = {{Königswinter (Bonn), Germany}}, pages = {{352--368}}, publisher = {{Springer}}, title = {{{User Interfaces for Pervasive Games: Experiences of a Formative Multi-Method Evaluation and its Implications for System Development}}}, doi = {{10.1007/978-3-540-71025-7_23}}, volume = {{4397}}, year = {{2006}}, }