Added common mode chapter
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common_mode/Makefile
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common_mode/Makefile
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#
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paper: paper.tex common_mode_paper.tex
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#latex paper.tex
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#dvipdf paper pdflatex cannot use eps ffs
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pdflatex paper.tex
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mv paper.pdf common_mode.pdf
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okular common_mode.pdf
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# Remove the need for referncing graphics in subdirectories
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#
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common_mode_paper.tex: common_mode.tex paper.tex
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cat common_mode.tex | sed 's/common_mode\///' > common_mode_paper.tex
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bib:
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bibtex paper
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common_mode/common_mode.tex
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common_mode/common_mode.tex
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\ifthenelse {\boolean{paper}}
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{
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\abstract{
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This paper describes how the Failure Mode Modular De-composition (FMMD) methodology
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can be applied to the problems of common mode failure
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analysis.
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%
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Common mode failures are often difficult to
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determine in embedded real time systems.
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%
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Environmental effects can lead to component failure
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modes, that can occur in separate sub-systems
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in a system, but interact to create unexpected fault.
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% WHAT IS DID
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The FMMD methodology can model and warn for two types of common mode failures.
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Failures caused by separate sub-systems relying on
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a common component, and environmental effects that can induce failure
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modes in components in separate sub-systems.
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% WHAT I FOUND
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From the FMMD data model it is possible to link the environmental effects
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and ensure determine the weak points in a design, where the failure modes may interact.
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For the component dependency case, the dependent component
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can be automatically highlighted by traversing the data model.
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% WHY YOU WOULD WANT TO READ IT
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This feature of FMMD proides another tool in the safety engineers
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repotiore, one that can shake out difficult to find common mode failure
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effects.
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}
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}
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{
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\paragraph{Chapter overview}
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This chapter describes how the % Failure Mode Modular De-composition (FMMD)
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FMMD methodology
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can be applied to the problems of common mode failure
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analysis.
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%
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Common mode failures are often difficult to
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determine in embedded real time systems.
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%
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Environmental effects can lead to component failure
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modes, that can occur in separate sub-systems
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in a system, but interact to create unexpected fault.
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% WHAT IS DID
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The FMMD methodology can model and warn for two types of common mode failures.
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Failures caused by separate sub-systems relying on
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a common component, and environmental effects that can induce failure
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modes in components in separate sub-systems.
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% WHAT I FOUND
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From the FMMD data model it is possible to link the environmental effects
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and ensure determine the weak points in a design, where the failure modes may interact.
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For the component dependency case, the dependent component
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can be automatically highlighted by traversing the data model.
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% WHY YOU WOULD WANT TO READ IT
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This feature of FMMD proides another tool in the safety engineers
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repotiore, one that can shake out difficult to find common mode failure
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effects.
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}
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\section{Introduction}
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\ifthenelse {\boolean{paper}}
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{
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paper
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}
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{
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chapter
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}
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Outline the fmmd process.
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Show modules with common dependencies (like on a power supply, a powersupply could have a fault
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like nopisy output)
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Trace a theoretical example and show how FMMD detects this (common dependency - like two
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{\dc}s being depemdent on the same failure mode.
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Then show an environmental effect, such as temperature and how
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it can induce faults in sepatate modulkes that
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would not be obviously related.
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Trace a theoretical example and show how FMMD detects this
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i.e. the environmental factor affecting both systems and causing a problem.
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what about the third way it can be affected.
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Like a chain of relays...... all could get welded .... think about that one.....
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31
common_mode/paper.tex
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common_mode/paper.tex
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\documentclass[a4paper,10pt]{article}
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\usepackage{graphicx}
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\usepackage{fancyhdr}
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\usepackage{tikz}
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\usepackage{amsfonts,amsmath,amsthm}
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\input{../style}
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\usepackage{ifthen}
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\newboolean{paper}
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\setboolean{paper}{true} % boolvar=true or false
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%\newtheorem{definition}{Definition:}
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\begin{document}
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\pagestyle{fancy}
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%\outerhead{{\small\bf Statistical Basis for Current Static Analysis Methodologies}}
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%\innerfoot{{\small\bf R.P. Clark } }
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% numbers at outer edges
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\pagenumbering{arabic} % Arabic page numbers hereafter
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\author{R.P.Clark}
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\title{Modelling and Uncovering Common Mode Failures using FMMD}
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\maketitle
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\input{common_mode_paper}
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\bibliographystyle{plain}
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\bibliography{../vmgbibliography,../mybib}
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\today
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\end{document}
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31
lifecycle_modelling/paper.tex
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31
lifecycle_modelling/paper.tex
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\documentclass[a4paper,10pt]{article}
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\usepackage{graphicx}
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\usepackage{fancyhdr}
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\usepackage{tikz}
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\usepackage{amsfonts,amsmath,amsthm}
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\input{../style}
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\usepackage{ifthen}
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\newboolean{paper}
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\setboolean{paper}{true} % boolvar=true or false
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%\newtheorem{definition}{Definition:}
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\begin{document}
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\pagestyle{fancy}
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%\outerhead{{\small\bf Statistical Basis for Current Static Analysis Methodologies}}
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%\innerfoot{{\small\bf R.P. Clark } }
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% numbers at outer edges
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\pagenumbering{arabic} % Arabic page numbers hereafter
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\author{R.P.Clark}
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\title{Product Lifecycle Modelling with FMMD}
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\maketitle
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\input{life_cycle_modelling_paper}
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\bibliographystyle{plain}
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\bibliography{../vmgbibliography,../mybib}
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\today
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\end{document}
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Safety critical in that it must not overheat, and that it must alarm
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for incorrect temperature.
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for incorrect temperature.
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\chapter{Modelling and uncovering Common Mode Failures using FMMD}
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\input{common_mode/common_mode}
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\chapter{FMMD Used as a design aide}
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\chapter{FMMD Used as a design aide}
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\input{fmmd_design_aide/fmmd_design_aide}
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\input{fmmd_design_aide/fmmd_design_aide}
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