TY - CHAP A1 - Schumm, Michael A1 - Joseph, Saskia A1 - Schroll-Decker, Irmgard A1 - Niemetz, Michael A1 - Mottok, Jürgen T1 - Required competences in software engineering – pair programming as an instrument for facilitating life-long learning T2 - 15th International Conference on Interactive Collaborative Learning and 41st International Conference on Engineering Pedagogy, Villach N2 - The professional requirements in software engineering have become highly volatile due to the complexities of project development and rapid and innovative changes occurring in the field. Therefore, the development of inter-personal and social competences has gained central importance in the training of software developers. The following text will present a concept allowing to acquire competences by using Pair Programming as an instrument. Moreover, arrangements for learning and teaching will be presented facilitating the acquisition of these competences. By approaching the issue of competence acquisition on a technical as well as on an educational and social level, lifelong learning is facilitated and supported. Y1 - 2012 U6 - https://doi.org/10.1109/ICL.2012.6402229 ER - TY - GEN A1 - Weigl, Stefan A1 - Matysik, Frank-Michael A1 - Bierl, Rudolf T1 - Development of a sensor system for analysis of human breath exhale T2 - BayWISS Herbstakademie 2018, Plankstetten N2 - Atemgasanalyse ist ein junges und vielversprechendes Feld im Bereich der diagnostischen Medizin. Der Ansatz verspricht einfach zugängliche und leicht wiederholbare Probennahme die zum einen non-invasiv ist und zugleich Rückschlüsse auf Vorgänge im menschlichen Körper und bspw. dessen Gesundheitszustand zulässt. Seit Ende des 20. Jahrhunderts gibt es Massenspektrometer die es ermöglicht haben mehrere Tausend verschiedene Stoffe in der Ausatemluft nachzuweisen. Diese Technologien verbessern sich stetig und ermöglichen es die Vorgänge und Zusammenhänge zwischen Zusammensetzung der Ausatemluft und systemischen Prozessen besser zu verstehen. Die bei Studien mit Massenspektrometern ermittelten Biomarker, deren qualitative und quantitative Detektion Gesundheitsdiagnosen ermöglichen, haben aber noch nicht den Weg in den klinischen Alltag gefunden. Das Problem sind meistens die hohen Anschaffungskosten, komplizierte Datenauswertung und zumeist geringe Verfügbarkeit und Immobilität dieser Messgeräte. Die photoakustische Spektroskopie ist eine selektive und hochsensitive Messmethode, die es ermöglichen soll den Biomarker „Aceton“, der grundsätzlich die Metabolisierung von Fetten widerspiegelt, schnell und reproduzierbar quantitativ zu detektieren. Dabei müssen Hindernisse wie Querempfindlichkeiten, ausgelöst durch die komplexe Zusammensetzung der Messmatrix Atemgas, bei gleichzeitig kleine Aceton Konzentrationen (200-800 parts-per-billion) überwunden werden. Verschiedene Wellenlängenbereiche mit unterschiedlichen Lichtquellen, akustisch resonante sowie innovative Messzellendesigns und anspruchsvolle Datenauswertung mittels komplexer Algorithmik sind nötig um das Ziel, die Entwicklung eines kompakten, günstigen und zuverlässigen Acetonsensors, zu erreichen. Y1 - 2018 ER - TY - JOUR A1 - Rück, Thomas A1 - Bierl, Rudolf A1 - Matysik, Frank-Michael T1 - Low-cost photoacoustic NO2 trace gas monitoring at the pptV-level JF - Sensors and Actuators A: Physical N2 - We present the development and the characterization of a photoacoustic NO2 trace gas detection system. The system is based on the implementation of low-cost components, i.e. a mass-produced blue diode laser and a standard MEMS microphone which is commonly built into smartphones, for example. An optimized cell design was realized by means of 3D printing. The linearity of the photoacoustic signal dependency on the analyte concentration was verified from 200 ppbV to 100 ppmV NO2. The detection limit (1σ) was determined to 33 pptV and the normalized noise equivalent absorption coefficient was calculated to 7.0 ∙ 10−10 W cm−1 Hz−1/2. The dynamic range of the system was verified to be linear over three magnitudes of order and the sensitivity was calculated to 814 μV/ppmV. The system was characterized in view of optimal operating parameters, i.e. lock-in time constant τLIA and total mass flow rate, optical performance and signal stability. The mass flow dependend response time of the system was specified to 19 s and an idealized step response to a quasi-Heaviside step function was quantified as a function of τLIA. The quality factor of acoustic resonance was determined to 21.9 and an empirical expression regarding acoustic node shifting is provided. The expression takes into account the radius of the resonator pipe and the radius of the hole, which was drilled into the pipe for microphone coupling. Furthermore, we studied the cross-sensitivity of the photoacoustic signal towards H2O and CO2, respectively. Y1 - 2017 U6 - https://doi.org/10.1016/j.sna.2017.06.036 VL - 263 SP - 501 EP - 509 PB - Elsevier CY - Amsterdam, Niederlande ER - TY - JOUR A1 - Rück, Thomas A1 - Bierl, Rudolf A1 - Matysik, Frank-Michael T1 - NO2 trace gas monitoring in air using off-beam quartz enhanced photoacoustic spectroscopy (QEPAS) and interference studies towards CO2, H2O and acoustic noise JF - Sensors and Actuators B: Chemical N2 - We present the development and characterization as well as comprehensive interference studies of a photoacoustic NO2 trace gas detection system. The system is based on an off-beam quartz enhanced photoacoustic scheme (off-beam QEPAS) and signal generation was initiated by amplitude modulating a low-cost diode laser emitting at 450 nm. The QEPAS sensor element features double-resonant amplification, still it is only ∼ 5 × 5 × 2.5 mm in size. The individual and combined resonance characteristics were investigated and specified to 52 dB amplification, adding up 15 dB acoustic- and 37 dB mechanical-resonance amplification. The linearity of the photoacoustic signal dependency on the analyte concentration was verified from 200 ppbV to 100 ppmV NO2 in synthetic air. The detection limit (3σ) was determined to 1.8 ppbV using a lock-in time constant of 10 s and an averaging time of 20 s. The normalized noise equivalent absorption coefficient was specified to 2.5·10−8 W cm−1 Hz−0.5. The stability of the signal was investigated over time and a slight drift by 1‰ was observed after 30 min without temperature stabilizing the photoacoustic cell (PAC). Noise analysis was performed by means of Allan deviation and the inverse dependency of response time and precision of the system on the lock-in time constant was outlined. We performed interference analyses towards N2, O2, CO2, H2O and acoustic noise, respectively. Although neither spectral interferences nor losses due to slow NO2 VT-relaxation were observed, O2 was identified to cause a 15% signal drop due to VVNO2-O2-relaxation. Changing H2O concentrations were found to cause acoustic detuning, which cannot be compensated by adjusting the frequency of modulation, because of the double-resonant feature of the PAC. However, alternative approaches of compensation were discussed. Finally, we carried out heavy traffic noise simulations and determined the QEPAS setup to be 46 times less susceptible towards ambient noise compared to standard microphone-based photoacoustic setups. Y1 - 2018 U6 - https://doi.org/10.1016/j.snb.2017.09.039 VL - 255 IS - Part 3, February SP - 2462 EP - 2471 PB - Elsevier ER - TY - CHAP A1 - Hausler, Peter A1 - Wunderlich, Lukas A1 - Fischer, Johannes A1 - Pfab, Christina A1 - Heckscher, Simon A1 - Hirsch, Thomas A1 - Bierl, Rudolf T1 - Surface plasmon resonance imaging for detection of drug metabolites in water T2 - Proceedings of SPIE, Optical Sensors 2019, 1 - 4 April 2019, Prague, Czech Republic N2 - The analysis of surface water, groundwater, drinking water as well as sewage is important to get information about the contamination of the water cycle. Currently, these time-consuming investigations require special equipment, like for example hyphenated mass spectrometry. Surface plasmon resonance (SPR) is a faster alternative as it is highly sensitive to changes in the dielectric medium next to a thin metal layer and makes it a quasi-universal detector. Therefore, and due to the labelfree nature, SPR is a widely used sensing tool for real‐time monitoring of molecular interactions of various analytes. SPR imaging (SPRi) has several advantages to standard surface plasmon resonance, as it allows to observe many analytes in parallel as well as the integration of referencing technologies. However, the homogenous illumination of a large area (several millimeters) with a small light source is challenging and demands new approaches. Allopurinol, a drug used to lower the blood concentration of urate and hence decrease the affection of gout, gets metabolized to oxipurinol in the body and dropped out almost entirely by urinary excretion. After wastewater treatment, concentrations of oxipurinol up to 21.7 μg•L-1 are detected. Further tracking of oxipurinol in the urban water cycle showed its presence in rivers and streams or even in groundwater. Therefore, the high biological stability of oxipurinol allows this molecule to be used as a marker for domestic wastewater in the environment. For the detection of oxipurinol by SPR graphene was used as receptive layer, as the analyte can bind via π-stacking to this surface. An SPRi technique was developed and compared to conventional SPR system for the detection of oxipurinol. Y1 - 2019 U6 - https://doi.org/10.1117/12.2522324 SN - 0277-786X VL - Vol. 11028 ER - TY - JOUR A1 - Weigl, Stefan A1 - Feldmeier, Florian A1 - Bierl, Rudolf A1 - Matysik, Frank-Michael T1 - Photoacoustic detection of acetone in N2 and synthetic air using a high power UV LED JF - Sensors Actuators B Chemical N2 - The performance of a photoacoustic trace gas sensor for the detection of acetone in N2 and synthetic air is reported. The sensor system utilises an amplitude modulated UV LED. The light source has an emission maximum at 278 nm and a maximum CW output power of 300 mW according to the datasheet. Three different collimating and focusing approaches have been investigated to guide the highly divergent LED light into the acoustic resonator of the photoacoustic measurement cell. A 3D printed aluminium cell was designed to optimize light coupling by simultaneously minimizing the photoacoustic background signal generation. Hence, the diameter of the resonator was set to a comparable large diameter of 10 mm and the inner walls of the resonator were mirror polished. The additive manufacturing procedure allowed for integration of a spirally formed gas channel, enabling gas heating prior to detection. The sensor performance was investigated by measuring acetone in N2 and synthetic air at different concentrations. The UV LED current was set to 86 % of the maximum value according to the datasheet of the light source in order to increase the lifetime and thermal stability. An Allan-Werle deviation analysis validates a stable sensor performance. The limit of detection (LoD) was determined at a 3σ noise level with a 10 s lock-in amplifier time constant by sampling data points over 20 s with a data acquisition rate of 5 Hz. LoDs of 80.8 ppbV and 19.6 ppbV were obtained for acetone in N2 and synthetic air, respectively. KW - Acetone detection KW - Photoacoustic spectroscopy KW - High power UV LED KW - UV LED collimation system KW - Acetone breath analysis Y1 - 2020 U6 - https://doi.org/10.1016/j.snb.2020.128109 N1 - Corresponding author at: Sensorik-Applikationszentrum (SappZ) der Ostbayerischen Technischen Hochschule Regensburg VL - 316 IS - August SP - 1 EP - 11 PB - Elsevier ER - TY - CHAP A1 - Hausler, Peter A1 - Genslein, Christa A1 - Roth, Carina A1 - Vitzthumecker, Thomas A1 - Hirsch, Thomas A1 - Bierl, Rudolf T1 - Miniaturized Surface Plasmon Resonance based Sensor System T2 - Proceedings of the 6th International Conference on Photonics, Optics and Laser Technology - PHOTOPTICS, Funchal, Madeira, Portugal N2 - We describe the miniaturization of the Surface Plasmon Resonance (SPR) technology which mainly finds its applications in pharmaceutical screening and biotechnology so far. SPR spectroscopy is a label-free, non-destructive and highly sensitive measurement principle detecting changes in the refractive index in striking distance to a gold surface. A transfer of this technology to a miniaturized sensor will broaden the range of possible applications. A promising feature which is included in the miniaturized system is the angle-dependent recording of the SPR signals without moving parts. Commercial SPR assays are mainly working with a small number of sensing spots. In contrast, the SPR imaging system shown here will allow to use an array of many sensing spots. In combination with chemical receptors designed as an artificial nose, the simultaneous detection of many analytes is envisioned for future applications. KW - Surface Plasmon Resonance Spectroscopy KW - Sensor KW - SPR-imaging KW - Miniaturization KW - Micro-Opto-Electro-Mechanical Systems Y1 - 2018 SN - 978-989-758-286-8 U6 - https://doi.org/10.5220/0006555400630066 SP - 63 EP - 66 PB - SciTePress ER - TY - JOUR A1 - Bieker, Johannes A1 - Roustaie, Farough A1 - Schlaak, Helmut F. A1 - Langer, Christoph A1 - Schreiner, Rupert A1 - Lotz, Marcel A1 - Wilfert, Stefan T1 - Field emission characterization of in situ deposited gold nanocones with variable cone densities JF - Journal of Vacuum Science and Technology B N2 - For the fabrication of field emitter cathodes with metallic nanocones, an in situ fabrication technique based on electrodeposition in an ion track etched polymer template was used. Three samples with nanocones made of gold and different cone densities were deposited on a circular electrode with a diameter of 2.5 mm, using templates with pore density of 6 × 104, 4 × 105, and 1 × 106 cones/cm2. The cones had a height of 24 μm, a base diameter between 3 and 3.75 μm, and a tip diameter below 500 nm. Integral field emission measurements revealed onset fields of down to 3.1 V/μm and average field enhancement factors of up to 1240. For one sample, the maximum emission current from the cathode reached 142.2 μA at an applied voltage of 338 V between cathode and extraction grid, which had a distance of 50 μm. To investigate the stability of the field emission current, cumulative long-term measurements were performed for over 50 h. A stable emission current of (31.0 ± 1.3) μA at an average applied voltage of 290 V (E = 5.8 V/μm) was observed. For currents above 100 μA, a decrease of the current and therefore a degradation of the emitter structures occurred. Y1 - 2018 U6 - https://doi.org/10.1116/1.5009504 VL - 36 IS - 2 PB - AIP Publishing ER - TY - CHAP A1 - Mottok, Jürgen T1 - Embedded trends T2 - Technologietag 2012, am 28. März, München Y1 - 2012 ER - TY - CHAP A1 - Mottok, Jürgen T1 - Migration path for secure and economic smart power grid devices with transitional smart metering support T2 - 2nd Applied Research Conference 2012 (ARC 2012), 25./26. June 2012, Nuremberg Y1 - 2012 SP - 64 EP - 70 ER - TY - JOUR A1 - Mottok, Jürgen T1 - Embedded functional safety, funktional safety in der praxis JF - Bayern Innovativ Y1 - 2012 ER - TY - CHAP A1 - Mottok, Jürgen A1 - Krämer, Stefan A1 - Deubzer, Michael A1 - Hobelsberger, Martin A1 - Martin, Felix T1 - Hardware Based Tracing of Embedded Multi-Core Systems T2 - 4th Applied Research Conference, 5th July 2014, Ingolstadt Y1 - 2014 SN - 978-3-8440-2875-1 ER - TY - CHAP A1 - Felis, Simeon A1 - Mottok, Jürgen A1 - Bauer, B. A1 - Kohlert, Dieter A1 - Jantz, D. A1 - Laumer, M. T1 - FBI3 – Fehlereinspeisung auf Hardware-Ebene T2 - 3. Landshuter Symposium Mikrosystemtechnik, Tagungsband, 13. und 14. März 2012, Hochschule Landshut Y1 - 2012 SP - 119 EP - 127 ER - TY - CHAP A1 - Lalo, Erjola A1 - Schmidhuber, Stefan A1 - Deubzer, Michael A1 - Mottok, Jürgen T1 - Extended Task Priority and Preemptability Optimization in Real-Time Multi-Core Embedded Systems T2 - 4th Applied Research Conference, 5th July 2014, Ingolstadt Y1 - 2014 SN - 978-3-8440-2875-1 SP - 90 EP - 95 CY - Ingolstadt ER - TY - CHAP A1 - Schmidhuber, Stefan A1 - Sailer, Andreas A1 - Deubzer, Michael A1 - Hobelsberger, Martin A1 - Mottok, Jürgen T1 - Overview of the itea2-project amalthea T2 - 2nd Applied Research Conference 2012 (ARC 2012) 25./26. June 2012, Nuremberg Y1 - 2012 SN - 978-3-8440-1093-0 SP - 60 EP - 62 PB - Shaker CY - Aachen ER - TY - CHAP A1 - Sailer, Andreas A1 - Schmidhuber, Stefan A1 - Deubzer, Michael A1 - Hobelsberger, Martin A1 - Mottok, Jürgen T1 - Requirements engineering for a continuous design flow and methodology T2 - 2nd Applied Research Conference 2012 (ARC 2012) 25./26. June 2012, Nuremberg Y1 - 2012 SN - 978-3-8440-1093-0 SP - 76 EP - 79 PB - Shaker CY - Aachen ER - TY - CHAP A1 - Krämer, Stefan A1 - Raab, Peter A1 - Mottok, Jürgen A1 - Racek, Stanislav T1 - Comparison of Enhanced Markov Models and Discrete Event Simulation T2 - 17th Euromicro Conference on Digital System Design (DSD), 27-29 August 2014, Verona, Italy N2 - In this paper we present simulation and model based approaches for evaluating and validating the temporal and safety relevant properties of software intensive safety-critical real-time embedded systems. A high level reliability model of a safe task execution is described by a continuous-time Markov process, enhanced by the modeling of execution times. It is shown that the behavior - regarding real-time and safety metrics - of this theoretical model can be transferred into an abstract system timing model, which then can be analyzed by a discrete event simulation approach. The verification of the discrete event simulation by Markov models offers the possibility of a holistic approach for reliability analysis combined with schedulability analysis of complex safety-critical multicore real-time systems by the discrete event simulation. Y1 - 2014 U6 - https://doi.org/10.1109/DSD.2014.42 SP - 591 EP - 598 ER - TY - CHAP A1 - Mottok, Jürgen T1 - Porting the microsoft .net micro framework onto an embedded operating system T2 - 2nd Applied Research Conference 2012 (ARC 2012) 25./26. June 2012, Nuremberg Y1 - 2012 SP - 26 EP - 30 ER - TY - CHAP A1 - Lalo, Erjola A1 - Deubzer, Michael A1 - Schmidhuber, Stefan A1 - Oklapi, Erna A1 - Mottok, Jürgen T1 - Task Priority Optimization in Real-Time Multi-Core Embedded Systems T2 - 4. Landshuter Symposium Mikrosystemtechnik, Mikrosystemtechnik als Schlüsseltechnologie der Systemintegration, Tagungsband zum Symposium 12./13. März 2014, Hochschule Landshut N2 - The shift from single-core to multi-core processors in real-time embedded systems leads to communication based effects on timing such as inter-core communication delays and blocking times. Moreover, the complexity of the scheduling problem increases when multi-core processors are used. In priority-based-scheduling, a fixed priority assignment is used in order to enable predictable behavior of the system. Predictability means that the system has to be analyzable which allows the detection of problems coming from scheduling decisions. For fixed priority scheduling in multi-core real-time embedded systems, a proper task priority assignment has to be done in a way that the system has minimal effects on timing. In this paper, we present an approach for finding near-optimal solutions for task priority assignment and the preemption/cooperation problem. A genetic algorithm is hereby used to create priority assignment solutions. A timing simulator is used for evaluation of each solution regarding real-time properties, memory consumption and communication overhead. In a case study we demonstrate that the proposed approach performs better than well known and single-core optimal heuristics for relatively complex systems. Y1 - 2014 SN - 978-3-9812696-5-9 SP - 96 EP - 109 CY - Landshut ER - TY - JOUR A1 - Braun, Jürgen A1 - Geyer, Dirk A1 - Mottok, Jürgen T1 - Alternative measure for safety related software JF - ATZelektronik N2 - Wie kann die funktionale Sicherheit in Fahrzeugen zukunftssicher und effektiv gewährleistet werden? Und wie kann dies speziell in elektrifizierten Antrieben gelingen? Mit dieser Aufgabenstellung haben sich AVL in Kooperation mit dem LaS³ und der Universität der Bundeswehr München in einem Forschungsprojekt beschäftigt. Die Antwort lautet: Die automatischen Speichertests in Zusammenspiel mit der Programmfluss-Überwachung und redundanter Hardware können besonders effektiv durch die „Codierte Verarbeitung“ ersetzt werden. Denn hier wird die Diversität in Software erhöht, um die aufwendigere und kostspielige Redundanz von Hardware zu reduzieren. Y1 - 2012 SN - 1862-1791 IS - 04 SP - 40 EP - 43 ER - TY - CHAP A1 - Schmidhuber, Stefan A1 - Deubzer, Michael A1 - Mottok, Jürgen ED - Mottok, Jürgen ED - Ziemann, Olaf T1 - Genetic optimization of real-time multicore systems with respect to communication-based metrics T2 - 2nd Applied Research Conference 2012 (ARC 2012) 25./26. June 2012, Nuremberg Y1 - 2012 SN - 978-3-8440-1093-0 SP - 21 EP - 25 PB - Shaker CY - Aachen ER - TY - CHAP A1 - Raab, Peter A1 - Mottok, Jürgen T1 - Modellbasierte Zuverlässigkeitsanalysen von arithmetischen Operationen in einem Prozessorsystem T2 - Proceedings of safe.tech 2014, 20. und 21. Mai 2014, München Y1 - 2014 ER - TY - CHAP A1 - Schmittner, Christoph A1 - Scharfenberg, Georg A1 - Mottok, Jürgen A1 - Strassmeier, Stefan A1 - Limmer, Thomas T1 - Analysis of the functional and electrical safety of charging stations T2 - 2nd Applied Research Conference 2012 (ARC 2012), 25./26. June 2012, Nuremberg N2 - The number of public charging stations for electric vehicles is rising. It's estimated that in 2014 more than 1.000.000 public charging stations will be installed worldwide. Currently there is no specific standard for Functional Safety and the standard for Electrical Safety is derived from standards for similar systems. The intent of this paper is to examine the existing safety architecture of mode 3 charging stations. First the standards for the charging process and the different modes are presented. Then a standard architecture for a mode 3 charging station, based on the IEC 61841, is described. After that a risk analysis of this model is performed and the electrical and Functional Safety of the architecture are analyzed. Both analyses are based on the general safety standards VDE 0100 and IEC 61508. After that possibilities for improvements and future challenges with Mode 4 charging are discussed. Y1 - 2012 SP - 80 EP - 85 ER - TY - CHAP A1 - Hackl, Magnus A1 - Thiel, Patrik A1 - Mottok, Jürgen T1 - Not Only SQL – a comparison to traditional RDBMS T2 - 4th Applied Research Conference (ARC 2014), 5th July 2014, Ingolstadt Y1 - 2014 SN - 978-3-8440-2875-1 PB - Shaker CY - Aachen ER - TY - CHAP A1 - Schreistetter, Stefan A1 - Hauser, Florian A1 - Reuter, Rebecca A1 - Jahn, Sabrina A1 - Mottok, Jürgen T1 - Using Eye Tracking Data to analyze students’ tasks solving behavior in classroom contexts T2 - 12th International Conference of Education, Research and Innovation (ICERI 2019), Conference Proceedings, 2019, Seville (Spain) Y1 - 2019 SN - 978-84-09-14755-7 U6 - https://doi.org/10.21125/iceri.2019.1473 SN - 2340-1095 SP - 6087 EP - 6096 ER - TY - CHAP A1 - Müller, L. A1 - Jahn, Sabrina A1 - Reuter, Rebecca A1 - Mottok, Jürgen ED - Chova, L. G. ED - Martínez, A. L. ED - Torres, I. C. T1 - A Task Design Concept For A Virtual Classroom For Requirements Engineering Education T2 - ICERI 2018 Proceedings, Seville, Spain Y1 - 2018 U6 - https://doi.org/10.21125/iceri.2018.1216 SP - 911 EP - 920 ER - TY - CHAP A1 - Bierl, Rudolf A1 - Boehm, M. A1 - Fraunhoffer, Judith A1 - Gardeia, Armin A1 - Mottok, Jürgen A1 - Schneider, Ralph A1 - Streubel, J. T1 - “Regensburger Modell zu den P-Seminaren” – Ein Konzept zur Gestaltung der Schnittstelle Gymnasium – Hochschule und zur Praxis einer kooperativen Lehr-Lern-Didaktik für Informationstechnik T2 - 3rd Embedded Software Engineering Congress, 7. bis 9. Dezember, Sindelfingen Y1 - 2010 PB - Vogel Business Media CY - Würzburg ER - TY - CHAP A1 - Knietzsch, Marco A1 - Muckelbauer, Daniel A1 - Reuter, Rebecca A1 - Mottok, Jürgen ED - Chova, L. G. ED - Martínez, A. L. ED - Torres, I. C. T1 - Experimental Verification of Indicated Benefits Of Integrating Augmented Reality into Academic Software Engineering Classes T2 - IATED, 11th International Conference of Education, Research and Innovation (ICERI 2018), 12-14 November 2018, Seville, Spain Y1 - 2018 SN - 978-84-09-05948-5 U6 - https://doi.org/10.21125/iceri.2018.1057 SN - 2340-1095 SP - 243 EP - 252 ER - TY - CHAP A1 - Hutzler, Ivonne A1 - Hauser, Florian A1 - Reuter, Rebecca A1 - Mottok, Jürgen A1 - Gruber, Hans T1 - Will the noun/verb analysis be used to generate class diagrams? An eye tracking study T2 - IATED, 11th International Conference of Education, Research and Innovation (ICERI 2018), 12-14 November 2018, Seville, Spain Y1 - 2018 U6 - https://doi.org/10.21125/iceri.2018.1103 SP - 505 EP - 514 ER - TY - CHAP A1 - Jahn, Sabrina A1 - Gold-Veerkamp, Carolin A1 - Reuter, Rebecca A1 - Mottok, Jürgen A1 - Abke, Jörg T1 - Secure Software Engineering in academic education: students’ sreconceptions of it security T2 - 12th International Conference of Education, Research and Innovation (ICERI2019), 11-13 November 2019, Seville, Spain Y1 - 2019 U6 - https://doi.org/10.21125/iceri.2019.1624 SP - 6825 EP - 6834 ER - TY - CHAP A1 - Seebauer, Stefan A1 - Jahn, Sabrina A1 - Mottok, Jürgen T1 - Escape Rooms for teaching IT-Security T2 - 12th International Conference of Education, Research and Innovation (ICERI2019), 11-13 November 2019, Seville, Spain Y1 - 2019 U6 - https://doi.org/10.21125/iceri.2019.1623 SP - 6815 EP - 6824 ER - TY - GEN ED - Mottok, Jürgen ED - Ziemann, Olaf T1 - 2nd Applied Research Conference 2012 (ARC 2012), 25./26. June 2012, Nuremberg Y1 - 2012 SN - 978-3-8440-1093-0 PB - Shaker Verlag CY - Aachen ER - TY - CHAP A1 - Alfranseder, Martin A1 - Mottok, Jürgen T1 - Benchmarking parallelisierbarer Algorithmen auf cuda Architekturen T2 - Tagungsband 5th Embedded Software Engineering Kongress, 3. bis 7. Dezember 2012, Sindelfingen Y1 - 2012 PB - Vogel Business Media CY - Würzburg ER - TY - CHAP A1 - Bock, T. A1 - Mottok, Jürgen A1 - Köhler, Thorsten ED - Mottok, Jürgen ED - Ziemann, Olaf T1 - A gesture-based human-machine interface using stereoscopic depth images T2 - 2nd Applied Research Conference 2012 (ARC 2012), 25./26. June 2012, Nuremberg N2 - Reasonable integration of gesture-based automotive HMI-functionality offers potential safety benefits by reducing driver distractions and glance times to operate tertiary in-car devices. Stereo camera systems are a well investigated choice to perform the task of generating depth data for spatial gesture recognition. This paper describes the functionality of our stereo vision software, which is intended for application in a target system based on CMOS wafer-level cameras. The retrieved point cloud data was passed to a gesture-based sample application. Y1 - 2012 SP - 166 EP - 169 PB - Shaker CY - Aachen ER - TY - CHAP A1 - Joseph, Saskia A1 - Schumm, Michael A1 - Schroll-Decker, Irmgard A1 - Niemetz, Michael A1 - Mottok, Jürgen T1 - Anmerkungen zur Kompetenz-Performanz-Relation: Software Engineering im Spannungsfeld der beruflichen Anforderungen T2 - Tagungsband 5th Embedded Software Engineering Kongress, 3. bis 7. Dezember 2012, Sindelfingen Y1 - 2012 ER - TY - BOOK A1 - Gebhard, Vera A1 - Rieger, Gerhard M. A1 - Mottok, Jürgen A1 - Gießelbach, Christian T1 - Funktionale Sicherheit nach ISO 26262 BT - Ein Praxisleitfaden zur Umsetzung KW - Funktionssicherheit KW - ISO/DIS 26262 KW - Kraftfahrzeugbau KW - OEM KW - Produktentwicklung Y1 - 2013 SN - 978-3-89864-788-5 PB - dpunkt.verlag CY - Heidelberg ER - TY - CHAP A1 - Landes, Dieter A1 - Sedelmaier, Yvonne A1 - Pfeiffer, Volkhard A1 - Mottok, Jürgen A1 - Hagel, Georg T1 - Learning and teaching software process models T2 - Proceedings of the 2012 IEEE Global Engineering Education Conference (EDUCON), 17-20 April 2012, Marrakech, Morocco N2 - Software process models are fairly abstract tools for organizing large, complex software development projects. Since particularly undergraduate students commonly do not have any experience in being part of such a project, their understanding of the benefits and shortcomings of particular process models is very limited. Even more, frequently they are not aware of the need to follow a particular process model since their previous one-person software assignments were too small for requiring any such model at all. Y1 - 2012 U6 - https://doi.org/10.1109/EDUCON.2012.6201191 ER - TY - CHAP A1 - Mottok, Jürgen T1 - Dependable multicore scheduling T2 - Continental Software Conference Y1 - 2012 ER - TY - CHAP A1 - Nick, Matthias A1 - Schorer, Michael A1 - Mottok, Jürgen ED - Mottok, Jürgen ED - Ziemann, Olaf T1 - Feasibility Study of a Build System Performing Automated Builds Based on Model-Based Build Descriptions T2 - 2nd Applied Research Conference 2012 (ARC 2012), 25./26. June 2012, Nuremberg Y1 - 2012 SP - 71 EP - 75 PB - Shaker CY - Aachen ER - TY - JOUR A1 - Ostermeier, Daniel A1 - Mottok, Jürgen A1 - Knorr, Christine A1 - Huber, Michael ED - Mottok, Jürgen ED - Ziemann, Olaf T1 - Competence Atlas for Save and Green Road Vehicles in the Electro Mobility Cluster Regensburg JF - Applied Research Conference 2012 (ARC 2012) 25./26. June 2012, Nuremberg Y1 - 2012 SP - 86 EP - 92 ER - TY - RPRT A1 - Steger, Sebastian A1 - Schmailzl, Anton A1 - Dostalek, Michael A1 - Armbruster, Dominik A1 - Hierl, Stefan ED - Baier, Wolfgang T1 - Entwicklung einer Systemtechnik für das quasisimultane Laser-Durchstrahlschweißen von 3D-Kunststoffbauteilen mit Temperaturmessung und Spanndruckregelung T2 - OTH Forschungsbericht 2016 Y1 - 2016 UR - https://doi.org/10.35096/othr/pub-1384 SP - 37 EP - 38 PB - Inixmedia GmbH CY - Kiel ER - TY - RPRT A1 - Schmailzl, Anton A1 - Hierl, Stefan ED - Baier, Wolfgang T1 - Rechenzeitoptimierte Temperaturfeldberechnung zur virtuellen Prozessauslegung des quasisimultanen Laser-Durchstrahlschweißens T2 - Forschungsbericht 2014 / Ostbayerische Technische Hochschule Regensburg Y1 - 2015 SP - 75 EP - 77 PB - Inixmedia GmbH CY - Kiel ER - TY - CHAP A1 - Steindl, Michael A1 - Mottok, Jürgen T1 - Deriving an integration order in a component-based embedded system using simulated annealing T2 - Proceedings of the 13. Mitteldeutschen Nachwuchswissenschaftlerkonferenz (NWK13), April 2012, Goerlitz, Germany Y1 - 2012 SN - 978-3-86870-436-5 ER - TY - CHAP A1 - Steindl, Michael A1 - Mottok, Jürgen T1 - Optimizing Software Integration Testing by Considering Integration Testability and Test Complexity T2 - 10th IEEE Workshop on Intelligent Solutions in Embedded Systems, 2012, Klagenfurt, Austria Y1 - 2012 ER - TY - CHAP A1 - Steindl, Michael A1 - Mottok, Jürgen T1 - Considering Schedule Requirements of Software Integration in Component based Embedded System T2 - International Conference on Applied Electronics, 2012, Pilsen, Czech Republic Y1 - 2012 ER - TY - CHAP A1 - Soska, Alexander A1 - Schroll-Decker, Irmgard A1 - Mottok, Jürgen T1 - Implementation of Practical Exercises in Software Engineering Education to Improve the Acquirement of Functional and Non-Functional Competences T2 - 2014 International Conference on Interactive Collaborative Learning (ICL), 3-6 Dec. 2014, Dubai, UAE N2 - Software Engineering is a very volatile profession that requires a variety of theoretical as well as practical skills. In addition to expertise technical knowledge, graduates have to have a variety of social, methodical and personal competences. The acquirement of these non-functional competences are getting more and more important for a successful software engineer. To fulfill these requirements, it is necessarily important to prepare future professionals already during their college course of education. This paper presents exercises for a software engineering lecture with the goal to strengthen the students' practical experiences and to support the development of their non-functional competences. The developed exercises impart technical knowledge and encourage the students to improve their self-organized and lifelong learning. Thereby they are facing practical issues in all steps of the software engineering process while working on an inter semester project. KW - software engineering education KW - project-based learning KW - software engineering exercises KW - competences Y1 - 2014 U6 - https://doi.org/10.1109/ICL.2014.7017795 ER - TY - CHAP A1 - Mottok, Jürgen T1 - Verbundprojekt EVELIN T2 - HDS.Forum Lernkulturen Y1 - 2012 ER - TY - CHAP A1 - Mottok, Jürgen T1 - Entdeckendes Lernen T2 - HDS.Forum Lernkulturen Y1 - 2012 ER - TY - JOUR A1 - Raab, Peter A1 - Krämer, Stefan A1 - Mottok, Jürgen T1 - Reliability of data processing and fault compensation in unreliable arithmetic processors, Microprocessors and Microsystems JF - Microprocessors and Microsystems N2 - In logical circuits, like arithmetic operations in a processor system, arbitrary faults become a more tremendous aspect in future. Modern manufacturing processes lead to less reliability and higher vulnerability of software execution to soft-errors. The correctness of certain results is important especially for safety–critical applications whose reliability depends on the fault-free execution of each single instruction and the dependencies between them. The more complex a software is the more unreliable the outcome is. But, there is a contrary effect. If the probability for multiple faults increases, there is also the chance that two faults compensate each other and the result is correct again. This paper presents the basic ideas for such a reliability evaluation of a software's data flow with arbitrary soft-errors and the effect of fault compensation. Further, this evaluation provides a possibility to compare different implementations of a data flow with respect to the reliability. This is shown by the comparison of two different error codes as alternatives for coded data processing. Y1 - 2016 U6 - https://doi.org/10.1016/j.micpro.2015.07.014 VL - 40 IS - Februar SP - 102 EP - 112 PB - Elsevier ER - TY - CHAP A1 - Krämer, Stefan A1 - Mottok, Jürgen A1 - Racek, Stanislav T1 - Proportionate fair based multicore scheduling for fault tolerant multicore real-time systems T2 - International Conference on Electrical and Information Technologies (ICEIT), 25-27 March 2015, Marakesch, Morocco N2 - In this paper we present a scheduling approach for safety critical, fault tolerant, multicore real-time embedded systems. For this kind of systems, not only the correctness of a computed result but also the strict adherence to timing requirements of computation is essential to avoid any kind of damage. To react to unpredictable, arbitrary hardware faults suitable error detection mechanisms have to be applied. The caused error itself and the detection and correction have great impact on the system's timing behavior. To still keep the real-time requirements, the used scheduling algorithm has to ensure maximum flexibility to disturbances of the timing. The group of Proportionate Fair (Pfairness) multicore scheduling algorithms has been proven to create an optimal schedule in polynomial time. The contribution of this paper is a Pfair-based algorithm that uses tight coupling between the error detection mechanisms and the scheduler of the real-time operating system to establish a loop-back connection. KW - Multicore processing KW - Time factors KW - Safety KW - Schedules KW - Scheduling algorithms KW - Real-time systems Y1 - 2015 U6 - https://doi.org/10.1109/EITech.2015.7162952 SP - 88 EP - 93 ER - TY - CHAP A1 - Studt, Reimer A1 - Winterfeldt, Götz A1 - Mottok, Jürgen T1 - Measuring software engineering competencies T2 - 2015 IEEE Global Engineering Education Conference (EDUCON), 18-20 March 2015, Tallinn, Estonia N2 - Measuring competencies may serve as a feedback mechanism as well as a judgment device for a lecturer. As measuring every competency from a catalogue of competencies is not very viable, the to-be-measured competencies are grouped in competency profiles. Further, assessment practices are shown and applied to a course in a study program. A discussion of useful practices concludes this contribution. Y1 - 2015 U6 - https://doi.org/10.1109/EDUCON.2015.7096081 ER -