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Systems engineering and assurance modeling (SEAM): A web-based solution for integrated mission assurance

We present an overview of the Systems Engineering and Assurance Modeling
 (SEAM) platform, a web-browser-based tool which is designed to help
 engineers evaluate the radiation vulnerabilities and develop an assurance
 approach for electronic parts in space systems. The SEAM framework consists
 of three interconnected modeling tools, a SysML compatible system
 description tool, a Goal Structuring Notation (GSN) visual argument tool,
 and Bayesian Net and Fault Tree extraction and export tools. The SysML and
 GSN sections also have a coverage check application that ensures that every
 radiation fault identified on the SysML side is also addressed in the
 assurance case in GSN. The SEAM platform works on space systems of any
 degree of radiation hardness but is especially helpful for assessing
 radiation performance in systems with commercial off-the-shelf (COTS)
 electronic components.