19 lines
870 B
TeX
19 lines
870 B
TeX
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% Describe FMMD
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\section{Background:\\ FMMD outline}
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The symptom abstraction process described here, is a core process in the
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%Failure Mode Modular De-Composition
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FMMD modelling technique. FMMD builds a hierarchy of failure mode behaviours from the bottom up.
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To start with collections of base components are chosen to form functional~groups, which are analysed
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w.r.t. its failure mode behaviour.
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These functional groups
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can then be treated as components in their own right.
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These higher level, or derived compoenents,
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can be used to build derived components at higher levels of abstraction, and ultimately
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are used to build an FMMD fault model hierarchy of the system modelled.
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Intermediate FMMD structures may be re-used in other designs, and
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re-used in repeated sections of a design (consider a system
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with several safety critical digital inputs for instance).
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