Modellbasierte Entwicklung eingebetteter Fahrzeugsoftware bei DaimlerChrysler     

Mirko Conrad  Ines Fey  Matthias Grochtmann und Torsten Klein 《Informatik - Forschung und Entwicklung》2005,20(1-2):3-10

Steigende Softwareumf?nge und die damit einhergehende Komplexit?tssteigerung erfordern neue Herangehensweisen an die Entwicklung eingebetteter Fahrzeugsoftware. Als Reaktion auf diese Herausforderungen vollzieht sich seit einigen Jahren ein Paradigmenwechsel von der klassischen Programmentwicklung hin zu modellbasierten Techniken. Der Beitrag gibt einen überblick über den Einsatz modellbasierter Entwicklungstechniken bei DaimlerChrysler und zeigt aktuelle Forschungsschwerpunkte auf. The growing amount of software and attendant rise in complexity demand new approaches to the development of embedded vehicle software. For some years now, a paradigm change from classical program development to model-based techniques has been taking place in reaction to these challenges. This paper provides an overview of the application of model-based development techniques at DaimlerChrysler and presents the main foci of current research.

CR Subject Classification D.2.1,D.2.2,D.2.3,D.2.5,D.2.10,I.6.4,I.6.5  相似文献   

Perceptions of national identity and attitudes toward immigrants and immigration in Canada and Germany     

Victoria M. Esses  Ulrich Wagner  Carina Wolf  Matthias Preiser  Christopher J. Wilbur 《Int J Intercult Relat》2006,30(6):653

In the current research, we examined whether promoting an inclusive national ingroup that includes both immigrants and nonimmigrants would improve attitudes toward immigrants and immigration among members of receiving societies. We also determined whether one's nation of citizenship and individual differences in social dominance orientation would moderate the effects. Participants were 126 Canadian students and 282 German students, who completed a measure of social dominance orientation and were then asked to respond to a series of questions designed to heighten the salience of national identity (national identity), promote a national ingroup that includes immigrants (common national ingroup), or irrelevant questions (control). The dependent measures included attitudes toward immigrants and immigration, and subtle prejudice toward immigrants. Results revealed that the manipulation of a common national ingroup successfully promoted more positive attitudes toward immigrants and immigration among higher social dominance oriented Canadian participants, but tended to have detrimental effects on the attitudes of higher social dominance oriented German participants. Results are discussed in terms of the importance of considering the context in which groups are situated, as well as implications for developing strategies to promote harmony between immigrants and members of receiving societies.  相似文献   

Aspektorientierte Programmiertechniken im Unit-Testen     

Matthias V?sgen  Dehla Sokenou 《Informatik - Forschung und Entwicklung》2005,44(2):57-71

Der Artikel untersucht, wie Probleme, die speziell beim Unit-Testen objektorientierter Programme auftreten, mit Hilfe des Paradigmas aspektorientierte Programmierung gel?st werden k?nnen. Die Untersuchung stellt Schritt für Schritt die einzelnen Teilprobleme vor, f"uhrt konventionelle L?sungen auf, zeigt aspektorientierte Alternativen für die gestellten Probleme und erl"autert anhand von Code-Beispielen ihre Implementierung in der Sprache AspectJ.  相似文献   

Determination of the centre of mass kinematics in alpine skiing using differential global navigation satellite systems     

Matthias Gilgien  Jörg Spörri  Julien Chardonnens  Josef Kröll  Philippe Limpach  Erich Müller 《Journal of sports sciences》2015,33(9):960-969

In the sport of alpine skiing, knowledge about the centre of mass (CoM) kinematics (i.e. position, velocity and acceleration) is essential to better understand both performance and injury. This study proposes a global navigation satellite system (GNSS)-based method to measure CoM kinematics without restriction of capture volume and with reasonable set-up and processing requirements. It combines the GNSS antenna position, terrain data and the accelerations acting on the skier in order to approximate the CoM location, velocity and acceleration. The validity of the method was assessed against a reference system (video-based 3D kinematics) over 12 turn cycles on a giant slalom skiing course. The mean (± s) position, velocity and acceleration differences between the CoM obtained from the GNSS and the reference system were 9 ± 12 cm, 0.08 ± 0.19 m · s^-1 and 0.22 ± 1.28 m · s^-2, respectively. The velocity and acceleration differences obtained were smaller than typical differences between the measures of several skiers on the same course observed in the literature, while the position differences were slightly larger than its discriminative meaningful change. The proposed method can therefore be interpreted to be technically valid and adequate for a variety of biomechanical research questions in the field of alpine skiing with certain limitations regarding position.  相似文献   

Automated vehicles and the morality of post-collision behavior     

Krügel  Sebastian  Uhl  Matthias  Balcombe  Bryn 《Ethics and Information Technology》2021,23(4):691-701

Ethics and Information Technology - We address the considerations of the European Commission Expert Group on the ethics of connected and automated vehicles regarding data provision in the event of...  相似文献   

Pedagogical content knowledge of experts and novices—what knowledge do they activate when analyzing science lessons?          下载免费PDF全文

Matthias Krepf  Wilfried Plöger  Daniel Scholl  Andreas Seifert 《科学教学研究杂志》2018,55(1):44-67

In the current debate on pedagogical content knowledge (PCK), the term is used to refer to the context‐specific knowledge that teachers activate when reflecting on practice. Against the background of this debate, we conducted an empirical study and sought to answer the question of which knowledge experts and novices activated in assessing a videotaped lesson in relation to its effectiveness for learning. Our assumption was that the participants activate their PCK as a blending of content knowledge (CK) and pedagogical knowledge (PK) as suggested by Shulman's amalgam thesis. The participants (9 experts and 9 novices) were shown a lesson on optics, in which the law of refraction (Snell's law) was being studied. In a subsequent interview, the participants were asked to analyze the observed lesson. A qualitative and quantitative evaluation of the interviews showed that experts activated both CK and PK intensively and in this respect they differed significantly from novices. Further analysis of the expert statements also proved that they do not activate their CK and PK in isolation, but instead combine both kinds of knowledge together, in line with Shulman's amalgam thesis. © 2017 Wiley Periodicals, Inc. J Res Sci Teach 55: 44–67, 2018  相似文献   

Does the accuracy matter? Accurate concept map feedback helps students improve the cohesion of their explanations     

Andreas Lachner  Iris Backfisch  Matthias Nückles 《Educational technology research and development : ETR & D》2018,66(5):1051-1067

Students are often challenged by the demand of writing cohesive explanatory texts. Prior research has shown that providing students with concept map feedback that visualizes explanatory cohesion deficits helped students generate more cohesive explanations. We conducted an experiment to investigate whether the accuracy of the provided information within the concept map feedback affected students’ improvements of cohesion. Accordingly, we varied the represented accuracy of information within such concept maps: Students either received accurate concept map feedback that depicted the real relations between concepts, as well as the authentic cohesion gaps in their explanations, or students received inaccurate concept map feedback, which depicted randomly drawn relations and random cohesion gaps. Additionally, in a baseline condition, students did not receive any feedback. We found that the students in the accurate feedback condition generated more cohesive explanations than the students in the no-feedback condition, whereas the students in the inaccurate feedback condition lay in-between. Evidently, providing feedback in general can be regarded as beneficial to enhance students’ writing. However, the accuracy of the provided feedback further impacts the effectiveness of computer-generated concept maps.  相似文献   

Simulation research and design: a dual-level framework for multi-project research programs     

Fink  Maximilian C.  Radkowitsch  Anika  Bauer  Elisabeth  Sailer  Michael  Kiesewetter  Jan  Schmidmaier  Ralf  Siebeck  Matthias  Fischer  Frank  Fischer  Martin R. 《Educational technology research and development : ETR & D》2021,69(2):809-841

Collaborations between researchers and practitioners have recently become increasingly popular in education, and educational design research (EDR) may benefit greatly from investigating such partnerships. One important domain in which EDR on collaborations between researchers and practitioners can be applied is research on simulation-based learning. However, frameworks describing both research and design processes in research programs on simulation-based learning are currently lacking. The framework proposed in this paper addresses this research gap. It is derived from theory and delineates levels, phases, activities, roles, and products of research programs to develop simulations as complex scientific artifacts for research purposes. This dual-level framework applies to research programs with a research committee and multiple subordinate research projects. The proposed framework is illustrated by examples from the actual research and design process of an interdisciplinary research program investigating the facilitation of diagnostic competences through instructional support in simulations. On a theoretical level, the framework contributes primarily to the literature of EDR by offering a unique dual-level perspective. Moreover, on a practical level, the framework may help by providing recommendations to guide the research and design process in research programs.

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Pädagogisierung und Systembildung     

Matthias?ProskeEmail author 《Zeitschrift für Erziehungswissenschaft》2002,5(2):279-298

Eine M?glichkeit, das Verh?ltnis von P?dagogik und Gesellschaft zu beschreiben, scheint im Begriff P?dagogisierung zu liegen. In der jüngeren Diskussion lassen sich zwei Konzeptualisierungen dieses Begriffs unterscheiden. P?dagogisierung kann erstens als Transformation sozialer Probleme in p?dagogische Probleme gedeutet werden. Hier wird unterstellt, dass soziale Probleme durch die Einwirkung auf Menschen mit den Mitteln institutionalisierter Erziehung und Bildung zu bearbeiten seien. P?dagogisierung l?sst sich zweitens als Ausdifferenzierung eines symbolisch-kommunikativen Systems innerhalb der Gesellschaft beschreiben. Diese Vorstellung referiert auf die Abl?sung des P?dagogischen von den klassischen Erziehungsinstitutionen. Vor dem Hintergrund dieser Unterscheidung rückt der vorliegende Beitrag in drei Fallstudien den gesellschaftlichen Umgang mit dem so genannten Dritte-Welt-Problem in der Bundesrepublik in das Blickfeld. Die dabei zu beobachtenden Bezugnahmen auf P?dagogik durch die Dritte-Welt-Protestbewegung, das zust?ndige Bundesministerium und Organisationen des Erziehungssystems werden als je unterschiedliche P?dagogisierungsf?lle rekonstruiert. Deren Hybridit?t, d.h. sowohl Eingrenzung wie Entgrenzung, sowohl Bezug des P?dagogischen auf wie auch Abl?sung des P?dagogischen vom institutionalisierten Erziehungssystem, legt es theoretisch nahe, so die These, P?dagogisierungsprozesse in den Zusammenhang von Formbildungen des P?dagogischen einzuordnen.  相似文献   

Competency-based curriculum development in the informal sector: The case of sewing skills training in rural South India     

Ramasamy  Muthuveeran  Pilz  Matthias 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》2019,65(6):905-928

International Review of Education - Although India is one of the world’s fastest-growing economies, a large proportion of its people live in rural regions and is employed in the informal...  相似文献