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%0 Thesis %A Zhang, Yizhe %T Development of hierarchical testing workflows to support virtual verification of technical systems %I Rheinisch-Westfälische Technische Hochschule Aachen %V Dissertation %C Aachen %M RWTH-2023-07259 %P 1 Online-Ressource : Illustrationen, Diagramme %D 2023 %Z Veröffentlicht auf dem Publikationsserver der RWTH Aachen University %Z Dissertation, Rheinisch-Westfälische Technische Hochschule Aachen, 2023 %X The increasing complexity of technical systems requires more powerful system development approaches to withstand or further reduce cost pressure and time-to-market. Model-Based Systems Engineering (MBSE) is a promising approach for increasing the efficiency of system development processes. MBSE relies on virtual system models as central development artifacts. The modeling methods use formal system models to describe system requirements, functions, as well as solutions, and link the input/output data of the system with each other. System models can generally be used to test physical system behavior at early stages by integrating domain simulation models. The virtual verification process sequentially performs activities to support design decisions before prototypes. However, there is a lack of methods for building structured, reusable, and efficient workflows and integrating these workflows into system models to support the virtual verification process. The goal of this work is the development of executable virtual test workflows across hierarchy levels of the system, allowing for the testing of modeled solution architectures based on specific requirements while ensuring data consistency between the hierarchical levels of the system. The workflows contain activities as modules that automatically execute simulation models within the individual domains. Test workflows are carried out according to various test scenarios concerning system scopes, model purposes, and model fidelities. The developed method for designing workflows is tested using a case study, the system development process for wind turbine (WT) systems. The modularity and efficiency improvement of the process design are discussed using the case study, and generalizations are derived. %F PUB:(DE-HGF)11 %9 Dissertation / PhD Thesis %R 10.18154/RWTH-2023-07259 %U https://publications.rwth-aachen.de/record/962225