Computer Science Theses and Dissertations

Permanent URI for this collectionhttp://hdl.handle.net/1903/2756

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Subject: search.filters.subject.Model-Based Systems Engineering

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    APPLICATIONS OF MODEL-BASED SYSTEMS ENGINEERING IN PERFORMANCE-BASED VULNERABILITY ASSESSMENT
    (2015) Bassam, Seyed Soroush -; Herrmann, Jeffrey W.; Schmidt, Linda C.; Systems Engineering; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)
    This thesis discusses the use of a model-based systems engineering (MBSE) approach for physical protection systems (PPS) evaluation. We discuss the role of requirements analysis in Vulnerability Assessment (VA). Then, we discuss different tools that are being used for requirement analysis and demonstrate how requirements modeling tools can be used in analyzing requirements for VA. Next, we review the steps in vulnerability assessment (VA) and describe the use of SysML models in these steps. The thesis presents examples of SysML models that can be used when conducting VA. Such models can enable the development and integration of other VA tools and reduce the time and cost of conducting VA, which will lead to safer facilities.
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    Integration of SysML with Trade-off Analysis Tools
    (2012) Spyropoulos, Dimitrios; Baras, John S.; Systems Engineering; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)
    Changes in technology, economy and society create challenges that force us to rethink the way we develop systems. Model-Based Systems Engineering is an approach that can prove catalytic in this new era of systems development. In this work we introduce the concept of the modeling "hub" in order to realize the vision of Model-Based Systems Engineering and especially we focus on the trade-off analysis and design space exploration part of this "hub". For that purpose the capabilities of SysML are extended by integrating it with the trade-off analysis tool Consol-Optcad. The integration framework, the implementation details as well as the tools that were used for this work are described throughout this thesis. The implemented integration is then applied to analyze a very interesting multi-criteria optimization problem concerning power allocation and scheduling of a microgrid.