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Early Engagement of Safety and Mission Assurance Expertise Using Systems Engineering Tools: A Risk-Based Approach to Early Identification of Safety and Assurance RequirementsDecades of systems engineering practice have demonstrated that the earlier the identification of requirements occurs, the lower the chance that costly redesigns will needed later in the project life cycle. A better understanding of all requirements can also improve the likelihood of a design's success. Significant effort has been put into developing tools and practices that facilitate requirements determination, including those that are part of the model-based systems engineering (MBSE) paradigm. These efforts have yielded improvements in requirements definition, but have thus far focused on a design's performance needs. The identification of safety & mission assurance (S&MA) related requirements, in comparison, can occur after preliminary designs are already established, yielding forced redesigns. Engaging S&MA expertise at an earlier stage, facilitated by the use of MBSE tools, and focused on actual project risk, can yield the same type of design life cycle improvements that have been realized in technical and performance requirements.
Document ID
20160014878
Document Type
Conference Paper
Authors
Darpel, Scott
(NASA Glenn Research Center Cleveland, OH United States)
Beckman, Sean
(NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
December 29, 2016
Publication Date
May 18, 2016
Subject Category
Engineering (General)
Report/Patent Number
GRC-E-DAA-TN31282
Meeting Information
International Association for the Advancement of Space (IAASS) Conference: Safety First Safety for All(Melbourne, FL)
Funding Number(s)
WBS: WBS 432938.10.02.03.13
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Keywords
Requirement
Safety
Systems

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