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Fault Management Design StrategiesDevelopment of dependable systems relies on the ability of the system to determine and respond to off-nominal system behavior. Specification and development of these fault management capabilities must be done in a structured and principled manner to improve our understanding of these systems, and to make significant gains in dependability (safety, reliability and availability). Prior work has described a fundamental taxonomy and theory of System Health Management (SHM), and of its operational subset, Fault Management (FM). This conceptual foundation provides a basis to develop framework to design and implement FM design strategies that protect mission objectives and account for system design limitations. Selection of an SHM strategy has implications for the functions required to perform the strategy, and it places constraints on the set of possible design solutions. The framework developed in this paper provides a rigorous and principled approach to classifying SHM strategies, as well as methods for determination and implementation of SHM strategies. An illustrative example is used to describe the application of the framework and the resulting benefits to system and FM design and dependability.
Document ID
20160008180
Document Type
Conference Paper
External Source(s)
Authors
Day, John C. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Johnson, Stephen B. (Colorado Univ. Colorado Springs, CO, United States)
Date Acquired
July 1, 2016
Publication Date
May 5, 2014
Subject Category
Quality Assurance and Reliability
Statistics and Probability
Meeting Information
International Conference on Space Operations (SpaceOps 2014)(Pasadena, CA)
Distribution Limits
Public
Copyright
Other
Keywords
systems engineering
fault protection