TY - CHAP AU - Rumlich, Dominik ED - Doff, Sabine ED - Giesler, Tim ED - Tödter, Mareike ID - 21897 T2 - Die große Frage TI - Inwiefern verbessert bilingualer Sachfachunterricht die Englischkompetenzen von Schülerinnen und Schülern? ER - TY - CHAP AU - Juchem-Grundmann, Constanze AU - Matz, Frauke AU - Rumlich, Dominik ED - Falkenhagen, Charlotte ED - Funk, Hermann ED - Reinfried, Marcus ED - Volkmann, Laurenz ID - 21920 T2 - Sprachen lernen integriert: global, regional, lokal. Dokumentation zum 27. Kongress für Fremdsprachendidaktik der Deutschen Gesellschaft für Fremdsprachenforschung (DGFF). Jena, 27.-30. September 2017 TI - Freies Format 9: Nachwuchscafé ER - TY - CHAP AU - Diehr, Bärbel AU - Becker, Annette AU - Breul, Carsten AU - Frisch, Stefanie AU - Kastens, Claudia AU - Rumlich, Dominik ED - Hellmann, Katharina ED - Kreutz, Jessica ED - Schwichow, Martin ED - Zaki, Katja ID - 21923 T2 - Kohärenz in der Lehrerbildung TI - Kohärenz im Englischstudium für die Primarstufe: Das Lehr-Lern-Konzept des Wuppertaler Projekts EULE ER - TY - CONF AU - Altemeier, Katharina AU - Becker, Matthias AU - Dziwok, Stefan AU - Koch, Thorsten AU - Merschjohann, Sven ED - Mikusz, Martin ID - 21929 T2 - Projektmanagement und Vorgehensmodelle 2019 (PVM 2019) TI - Was fehlt (bisher) um Apps sicher zu entwickeln? - Prozesse, Werkzeuge und Schulungen für sichere Apps by Design ER - TY - JOUR AU - Nüske, Feliks AU - Boninsegna, Lorenzo AU - Clementi, Cecilia ID - 21944 JF - The Journal of Chemical Physics SN - 0021-9606 TI - Coarse-graining molecular systems by spectral matching ER - TY - CONF AB - Requirement changes are a major cause for project failure. A systematic approach to manage those changes from the very beginning should be an in-tegral part of each development project. Although this is accepted in both sci-ence and industry, there is no adequate approach to tackle the issue, especially in the context of interdisciplinary systems. In this paper, a secondary analysis is done to identify all information that is necessary to manage those changes efficiently. The demanded information is pictured in a reference model and then mapped with the capabilities of existing approaches. Based on this, research gaps are identified and used to guide future research efforts. AU - Gräßler, I. AU - Oleff, C. ID - 22000 T2 - Design for X - Beiträge zum 30. DfX-Symposium TI - Risikoorientierte Analyse und Handhabung von Anforderungsänderungen VL - 30 ER - TY - CONF AB - In diesem Beitrag wird ein Ansatz vorgestellt, welcher die Bewertung des Risikos von Anforderungsänderungen in der Entwicklung mechatronischer Systeme ermöglicht. Ausgehend von einer Anforderungsliste werden die Wechselwirkungen in einer Requirements Structure Matrix (RSM) teilautomatisch erfasst. Parallel werden Anforderungen in Bezug auf ihren Ursprung („Einflussbereich“) kategorisiert und darauf aufbauend priorisiert. Diese Priorisierung basiert auf dem Veränderungsrisiko und wird durch die drei Kriterien „Dynamik“, „Unsicherheit der Wissensbasis“ und „Relevanz für den Entwicklungsprozess“ charakterisiert. Das Vorgehen wird anhand strukturierter Interviews mit Projektleitern und Entwicklern und der Fallstudie eines Pedelecs als mechatronischem System validiert. Durch die Anwendung der Methode können disziplinübergreifende Abhängigkeiten von Anforderungen zur Reduktion von Iterationen in der Entwicklung mechatronischer Systeme – wie dem Pedelec – berücksichtigt werden. AU - Gräßler, I. AU - Oleff, C. AU - Scholle, P. ID - 22001 T2 - Fachtagung Mechatronik 2019 Paderborn TI - Priorisierung von Anforderungen für die Entwicklung mechatronischer Systeme ER - TY - CONF AB - In diesem Beitrag wird ein Ansatz vorgestellt, welcher die Bewertung des Risikos von Anforderungsänderungen in der Entwicklung mechatronischer Systeme ermöglicht. Ausgehend von einer Anforderungsliste werden die Wechselwirkungen in einer Requirements Structure Matrix (RSM) teilautomatisch erfasst. Parallel werden Anforderungen in Bezug auf ihren Ursprung („Einflussbereich“) kategorisiert und darauf aufbauend priorisiert. Diese Priorisierung basiert auf dem Veränderungsrisiko und wird durch die drei Kriterien „Dynamik“, „Unsicherheit der Wissensbasis“ und „Relevanz für den Entwicklungsprozess“ charakterisiert. Das Vorgehen wird anhand strukturierter Interviews mit Projektleitern und Entwicklern und der Fallstudie eines Pedelecs als mechatronischem System validiert. Durch die Anwendung der Methode können disziplinübergreifende Abhängigkeiten von Anforderungen zur Reduktion von Iterationen in der Entwicklung mechatronischer Systeme – wie dem Pedelec – berücksichtigt werden. AU - Gräßler, I. AU - Thiele, H. AU - Oleff, C. AU - Scholle, P. AU - Schulze, V. ID - 22002 T2 - International Conference on Engineering Design (ICED19) TI - Priorisierung von Anforderungen für die Entwicklung mechatronischer Systeme ER - TY - CONF AB - Due to the great popularity of the Fused Deposition Modeling (FDM) process, the material market is growing. In particular, processing of high-temperature materials such as PEEK is demanding. The aim of the investigations is to test different PEEK materials regarding their processability in the FDM process. An unreinforced PEEK, a thermally conductive PEEK as well as a carbon fiber reinforced PEEK are investigated. The processability is assessed with the help of the weld seam strength. The assessment of the weld seam strength is carried out by building tests. For this purpose, a special method developed at the DMRC is used. In addition, a welding width factor between the strands deposited on each other is calculated and compared. Finally, a welding factor is determined to enable the comparison between the different materials. With this procedure, the influence of varying nozzle and build chamber temperatures on the achievable weld seam strengths is evaluated. AU - Moritzer, Elmar AU - Wächter, Julian AU - Elsner, M. ID - 22022 T2 - 30th Annual International Solid Freeform Fabrication Symposium TI - Investigation of the Processability of Different PEEK Materials in the FDM Process with Regard to the Weld Seam Strength VL - 30 ER - TY - GEN AU - Kliensieck, Katrin AU - John, Thomas AU - Kundisch, Dennis ID - 8954 T2 - 11th Biennial Procrastination Research Conference TI - Applied procrastination research: Tackling procrastination by gamification ER - TY - CONF AU - Szopinski, Daniel ID - 9261 T2 - Proceedings of the 32nd Bled eConference TI - Jumping, dumping, and pumping: Three mental principles for idea generation to activate software-based tools in business model innovation ER - TY - CONF AU - Szopinski, Daniel AU - Schoormann, T. AU - Kundisch, Dennis ID - 9263 T2 - Proceedings of the 27th European Conference on Information Systems (ECIS) TI - Because your taxonomy is worth it: Towards a framework for taxonomy evaluation ER - TY - JOUR AU - Kremer, H.-Hugo AU - Rüsing, Peter ID - 9267 JF - berufsbildung Zeitschrift für Theorie-Praxis-Dialog TI - Digitale Transformation – Rezeption aus Sicht der Akteure in der Fachschule am Berufskolleg ER - TY - CONF AB - As 5G and network function virtualization (NFV) are maturing, it becomes crucial to demonstrate their feasibility and benefits by means of vertical scenarios. While 5GPPP has identified smart manufacturing as one of the most important vertical industries, there is still a lack of specific, practical use cases. Using the experience from a large-scale manufacturing company, Weidm{\"u}ller Group, we present a detailed use case that reflects the needs of real-world manufacturers. We also propose an architecture with specific network services and virtual network functions (VNFs) that realize the use case in practice. As a proof of concept, we implement the required services and deploy them on an emulation-based prototyping platform. Our experimental results indicate that a fully virtualized smart manufacturing use case is not only feasible but also reduces machine interconnection and configuration time and thus improves productivity by orders of magnitude. AU - Schneider, Stefan Balthasar AU - Peuster, Manuel AU - Behnke, Daniel AU - Marcel, Müller AU - Bök, Patrick-Benjamin AU - Karl, Holger ID - 9270 KW - 5g KW - vertical KW - smart manufacturing KW - nfv T2 - European Conference on Networks and Communications (EuCNC) TI - Putting 5G into Production: Realizing a Smart Manufacturing Vertical Scenario ER - TY - CONF AB - In the last years, store-oriented software ecosystems are gaining more and more attention from a business perspective. In these ecosystems, third-party developers upload extensions to a store which can be downloaded by end users. While the functional scope of such ecosystems is relatively similar, the underlying business models differ greatly in and between their different product domains (e.g. Mobile Phone, Smart TV). This variability, in turn, makes it challenging for store providers to find a business model that fits their own needs. To handle this variability, we introduce the Business Variability Model (BVM) for modeling business model decisions. The basis of these decisions is the analysis of 60 store-oriented software ecosystems in eight different product domains. We map their business model decisions to the Business Model Canvas, condense them to a variability model and discuss particular variants and their dependencies. Our work provides store providers a new approach for modeling business model decisions together with insights of existing business models. This, in turn, supports them in creating new and improving existing business models. AU - Gottschalk, Sebastian AU - Rittmeier, Florian AU - Engels, Gregor ED - Shishkov, Boris ID - 9275 KW - Software Ecosystems KW - Business Models KW - Variabilities T2 - Business Modeling and Software Design TI - Business Models of Store-Oriented Software Ecosystems: A Variability Modeling Approach ER - TY - CONF AU - Yigitbas, Enes AU - Josifovska, Klementina AU - Jovanovikj, Ivan AU - Kalinci, Ferhat AU - Anjorin, Anthony AU - Engels, Gregor ID - 9276 T2 - Proceedings of the 11th ACM SIGCHI Symposium on Engineering Interactive Computing Systems (EICS 2019) TI - Component-Based Development of Adaptive User Interfaces ER - TY - GEN AU - Sharma, Arnab AU - Wehrheim, Heike ID - 7752 SN - 978-3-88579-686-2 T2 - Proceedings of the Software Engineering Conference (SE) TI - Testing Balancedness of ML Algorithms VL - P-292 ER - TY - JOUR AU - Henksmeier, Tobias AU - Shvarkov, Stepan AU - Trapp, Alexander AU - Reuter, Dirk ID - 7800 JF - Journal of Crystal Growth SN - 0022-0248 TI - Molecular beam epitaxy growth and temperature-dependent electrical characterization of carbon-doped GaAs on GaAs(1 1 1)B VL - 512 ER - TY - JOUR AB - Models on network formation have often been extended to include the potential of network disruption in recent years. Whereas the theoretical research on network formation under the threat of disruption has thus gained prominence, hardly any experimental research exists so far. In this paper, we therefore experimentally study the emergence of networks including the aspect of a known external threat by relating theoretical predictions by Dzuibiński and Goyal (2013) to actual observed behaviour. We deal with the question if subjects in the role of a strategic Designer are able to form safe networks for least costs while facing a strategic Adversary who is going to attack their networks. Varying the costs for protecting nodes, we designed and tested two treatments with different predictions for the equilibrium network and investigated whether one of the least cost equilibrium networks was more likely to be reached. Furthermore, the influence of the subjects’ farsightedness on their decision-making process was elicited and analysed. We find that while subjects are able to build safe networks in both treatments, equilibrium networks are only built in one of the two treatments. In the other treatment, predominantly safe networks are built but they are not for least costs. Additionally, we find that farsightedness –as measured in our experiment– has no influence on whether subjects are able to build safe or least cost equilibrium networks. Two robustness settings with a reduced external threat or more liberties to modify the initial networks qualitatively confirm our results. Overall, in this experiment observed behaviour is only partially in line with the theoretical predictions by Dzuibiński and Goyal (2013). AU - Endres, Angelika Elfriede AU - Recker, Sonja AU - Mir Djawadi, Behnud AU - Hoyer, Britta ID - 80 JF - Journal of Economic Behavior and Organization TI - Network Formation and Disruption - An Experiment: Are equilibrium networks too complex? VL - 157 ER - TY - THES AB - This thesis investigates approximate pure Nash equilibria in different game-theoretic models. In such an outcome, no player can improve her objective by more than a given factor through a deviation to another strategy. In the first part, we investigate two variants of Congestion Games in which the existence of pure Nash equilibria is guaranteed through a potential function argument. However, the computation of such equilibria might be hard. We construct and analyze approximation algorithms that enable the computation of states with low approximation factors in polynomial time. To show their guarantees we use sub games among players, bound the potential function values of arbitrary states and exploit a connection between Shapley and proportional cost shares. Furthermore, we apply and analyze sampling techniques for the computation of approximate Shapley values in different settings. In the second part, we concentrate on the existence of approximate pure Nash equilibria in games in which no pure Nash equilibria exist in general. In the model of Coevolving Opinion Formation Games, we bound the approximation guarantees for natural states nearly independent of the specific definition of the players' neighborhoods by applying a concept of virtual costs. For the special case of only one influential neighbor, we even show lower approximation factors for a natural strategy. Then, we investigate a two-sided Facility Location Game among facilities and clients on a line with an objective function consisting of distance and load. We show tight bounds on the approximation factor for settings with three facilities and infinitely many clients. For the general scenario with an arbitrary number of facilities, we bound the approximation factor for two promising candidates, namely facilities that are uniformly distributed and which are paired. AU - Feldotto, Matthias ID - 8080 TI - Approximate Pure Nash Equilibria in Congestion, Opinion Formation and Facility Location Games ER -