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Merge branch 'master' of dev:/home/robin/git/thesis

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robin 2011-03-29 20:29:18 +01:00
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fmmd_design_aide/Makefile
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@ -6,7 +6,8 @@ paper: paper.tex fmmd_design_aide_paper.tex
#latex paper.tex
#dvipdf paper pdflatex cannot use eps ffs
pdflatex paper.tex
okular paper.pdf
mv paper.pdf fmmd_design_aide_paper.pdf
okular fmmd_design_aide_paper.pdf
# Remove the need for referncing graphics in subdirectories

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logic_diagram/logic_diagram.tex
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@ -244,7 +244,7 @@ $$ \hat{z} = \bigcap_{c \in \mathcal{X}}
{interior}
(\hat{c})
%\; \cup \;
\cap % J.Howse correction 25MAR2011
\; \cap \; % J.Howse correction 25MAR2011
\bigcap_{\hat{c} \in \hat{C}-X}
exterior (\hat{c})
$$
@ -857,24 +857,26 @@ The test case AFE represents the condition where all four engines have failed \c
\end{figure}
\section{Conclusion}
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PLD's provide a means to visually model failure modes within {\fgs} and after analysis
of the test cases, extract the {\fg}'s common failure symptoms.
%
Because PLD's model failure modes generally, they are not constrained to
any particular discipline.
%
Most methodologies are aimed at solving problems for a particular discipline,
UML for instance is only suitable for modelling software.
Most failure mode methodologies are focussed on solving problems for a particular discipline;
UML for instance is only suitable for modelling software;
FMEA, FMEDA and FMECA are good at modelling
electronic and mechanical systems, but struggle with software.
%
FTA models all systems, but from the top down, and rarely giving complete coverage
FTA models all systems, but from the top down rarely giving complete coverage
to all base component failure modes.
%
PLD's can be used to model Mechanical, Electrical and Software
failure modes. More importantly the interfaces between these disciplines can be modelled
seamlessly.
failure modes. More importantly the interfaces between these disciplines can be modelled
seamlessly. The bottom-up nature of its associated methodology, Failure Mode Modular De-Composition (FMMD)
ensures that complete coverage of all base~component failures modes
can be ensured.
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