TY - CONF AB - Challenges in decisions on technical changes are the lack of knowledge about the expected impact and change propagation. Currently, no literature study contains a systematic differentiation and evaluation of existing approaches, which is a prerequisite for practitioners to select a suitable approach. This research aims at defining differentiation criteria as well as generally applicable requirements for evaluation. A four-step approach is used: systematic literature review on approaches for impact analysis of engineering changes (1), categorization and prioritization of approaches based on reoccuring elements (2), derivation of context specific requirements for evaluation (3), and evaluation of approaches (4). The result indicates existing potential of object-oriented modeling approaches. AU - Gräßler, Iris AU - Wiechel, Dominik ED - Krause, Dieter ED - Paetzold, Kristin ED - Wartzack, Sandro ID - 24280 KW - Engineering Change Management KW - Impact Analysis KW - Engineering Changes KW - Model-based Systems Engineering KW - Product Developmen T2 - DS 111: Proceedings of the 32nd Symposium Design for X TI - Systematische Bewertung von Auswirkungsanalysen des Engineering Change Managements ER - TY - CONF AU - Gräßler, Iris AU - Roesmann, Daniel AU - Wiechel, Dominik AU - Preuß, Daniel AU - Pottebaum, Jens ID - 26866 T2 - 54th CIRP Conference on Manufacturing Systems TI - Determine similarity of assembly operations using semantic technology ER - TY - CONF AU - Gräßler, Iris AU - Wiechel, Dominik AU - Pottebaum, Jens ID - 23392 T2 - Proceedings of 19th Drive Train Technology Conference (ATK 2021), 9. - 11. Mrz. 2021 TI - Role model of model-based systems engineering application ER - TY - CHAP AU - Schreckenberg, Stefan ED - Mecke, Jochen ED - Schoentjes, Pierre ED - Donnarieix, Anne-Sophie ID - 44693 T2 - Esthétique de la guerre - Éthique de la paix. Un siècle de littérature sur la Grande Guerre TI - Éthiques et esthétiques de la Grande Guerre chez des auteurs de la génération des petits-enfants ER - TY - CONF AB - Challenges of the development of mechatronic systems and corresponding production systems have increased steadily. Changes are primarily due to increased product complexity and the connection to the internet of things and services, enabling Cyber-Physical Systems (CPS) and Cyber-Physical Production Systems (CPPS). Major innovations of the revised VDI guideline 2206 for developing mechatronic systems are systems thinking as a core element and six checkpoints for structuring deliverables along the V-Model. These checkpoints serve for orientation in result progress and thus enable a structured and complete development process. However, tasks and checkpoints of the new guideline focus on the product development itself without integrating the development of related CPPS, enabling optimization simultaneously to system development. Implications are derived by a three-step analysis. The paper at hand contributes fundamental extensions of the checkpoint questions regarding integrated CPPS development. These questions provide methodical support for system developers of CPPS for CPS by enabling the project manager to check the status, schedule further development steps and evaluate the maturity of the whole, integrated development. AU - Gräßler, Iris AU - Wiechel, Dominik AU - Roesmann, Daniel AU - Thiele, Henrik ID - 24080 KW - Cyber-Physical Production System (CPPS) KW - V-Model KW - Product System Development KW - Integrated Development KW - VDI 2206 SN - 2212-8271 T2 - Procedia CIRP TI - V-model based development of cyber-physical systems and cyber-physical production systems ER - TY - CONF AB - In order to optimize production processes and to avoid errors, it is not only necessary to automate processes, but also to integrate workers with their individual personality and skill profiles. For this purpose, human factors should be considered in the entire design process. The integrated view of mental human models, the cognitive demand of the working environment and the automation design is essential. Human-System Integration (HSI) constitutes a promising approach. Current model-based approaches offer possibilities to analyze and optimize tasks within an overall system, but they still lack integration. This leads to the research question: How can human factors be integrated into a system model of a socio-technical, Cyber-Physical Production System? The paper at hand contributes an approach of human factor integration into the procedure of Model-Based Systems Engineering for Cyber-Physical Production Systems (CPPS). The approach combines a system model of a CPPS with HSI concepts. In accordance to the benefits of MBSE, SysML is selected to integrate human factors in the development process of a CPPS. The approach is divided into five steps, which includes the extension of the SysML meta model. This allows the optimization of skill-based human-machine interaction. Defined HSI-Profiles enable system developers to integrate employee requirements at early stages within the development process. The approach is demonstrated by the maintenance of a 3D-Printer as a case example. This research enables system developers to depict individual workers with the help of the developed concepts and systematically integrate them into the development process of a CPPS. AU - Gräßler, Iris AU - Wiechel, Dominik AU - Roesmann, Daniel ID - 24281 SN - 2212-8271 T2 - Procedia CIRP TI - Integrating human factors in the model based development of cyber-physical production systems ER - TY - CONF AU - Hesse, Philipp AU - Gräßler, Iris ED - Biedermann, Hubert ED - Posch, Wolfgang ED - Vorbach, Stefan ID - 24444 T2 - Digitalisierung im Kontext von Nachhaltigkeit und Klimawandel TI - Digitaler Zwilling zur Gestaltung der Prozesse im End-of-Life VL - 9 ER - TY - GEN AU - Gräßler, Iris AU - Hentze, Julian AU - Hesse, Philipp AU - Preuß, Daniel AU - Thiele, Henrik AU - Wiechel, Dominik AU - Bothen, Martin AU - Bruckmann, Tobias AU - Dattner, Michael AU - Ehl, Thomas AU - Hawlas, Martin AU - Krimpmann, Christoph AU - Lachmayer, Roland AU - Knöchelmann, Marvin AU - Mock, Randolf AU - Mozgova, Iryna AU - Schneider, Maximilian AU - Stollt, Guido ID - 27680 TI - VDI/VDE 2206 - Entwicklung mechatronischer und cyber-physischer Systeme ER - TY - CONF AB - The battle of developing hardware Trojans and corresponding countermeasures has taken adversaries towards ingenious ways of compromising hardware designs by circumventing even advanced testing and verification methods. Besides conventional methods of inserting Trojans into a design by a malicious entity, the design flow for field-programmable gate arrays (FPGAs) can also be surreptitiously compromised to assist the attacker to perform a successful malfunctioning or information leakage attack. The advanced stealthy malicious look-up-table (LUT) attack activates a Trojan only when generating the FPGA bitstream and can thus not be detected by register transfer and gate level testing and verification. However, also this attack was recently revealed by a bitstream-level proof-carrying hardware (PCH) approach. In this paper, we present a novel attack that leverages malicious routing of the inserted Trojan circuit to acquire a dormant state even in the generated and transmitted bitstream. The Trojan's payload is connected to primary inputs/outputs of the FPGA via a programmable interconnect point (PIP). The Trojan is detached from inputs/outputs during place-and-route and re-connected only when the FPGA is being programmed, thus activating the Trojan circuit without any need for a trigger logic. Since the Trojan is injected in a post-synthesis step and remains unconnected in the bitstream, the presented attack can currently neither be prevented by conventional testing and verification methods nor by recent bitstream-level verification techniques. AU - Ahmed, Qazi Arbab AU - Wiersema, Tobias AU - Platzner, Marco ID - 20681 T2 - 2021 Design, Automation & Test in Europe Conference & Exhibition (DATE) TI - Malicious Routing: Circumventing Bitstream-level Verification for FPGAs ER - TY - GEN AU - Dewerth, Mats-Ole AU - Neukötter, Moritz ID - 42989 TI - Entwicklung eines Versuchsaufbaus zur rheo-optischen Untersuchung des Dehnverhaltens von Polymerschmelzen und -lösungen am Hochdruck-Kapillarrheometer (Studienarbeit) ER -