Theses and Dissertations from UMD

Permanent URI for this communityhttp://hdl.handle.net/1903/2

New submissions to the thesis/dissertation collections are added automatically as they are received from the Graduate School. Currently, the Graduate School deposits all theses and dissertations from a given semester after the official graduation date. This means that there may be up to a 4 month delay in the appearance of a give thesis/dissertation in DRUM

More information is available at Theses and Dissertations at University of Maryland Libraries.

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Subject: search.filters.subject.Requirements Analysis

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    FLOOR (Framework for Linking Ontology Objects and Textual Requirements): A New Requirements Engineering Tool that Provides Real-time Feedback
    (2017) Zontek-Carney, Edward James; Austin, Mark A; Systems Engineering; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)
    Cost overruns on complex system-of-systems development programs frequently trace back to problems with requirements. For increasingly complex systems, a key capability is the identification and management of requirements early in a system’s life cycle, when errors are cheapest and easiest to correct. Significant work has been done to apply natural language processing (NLP) to the domain of requirements engineering. Recently, requirements engineering tools have been developed that use NLP to leverage both domain ontologies and requirement templates, which define acceptable sentence structures for requirements. Domain ontologies provide terminology consistency, and enable rule-checking during the testing of requirements. This thesis introduces FLOOR, a new software tool for requirements engineering that leverages NLP. FLOOR not only integrates domain ontologies and requirement templates, but also supports importing multiple external domain ontologies.
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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.