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% Document Info
\author{Everdeen}
\pdfinfo{
  /Title (safety-and-reliability-of-embedded-systems.pdf)
  /Creator (Cheatography)
  /Author (Everdeen)
  /Subject (Safety and Reliability of Embedded Systems Cheat Sheet)
}

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\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
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    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
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\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Safety and Reliability of Embedded Systems Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Everdeen} via \textcolor{DarkBackground}{\uline{cheatography.com/57687/cs/23704/}}}
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\noindent
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  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}Everdeen \\
  \uline{cheatography.com/everdeen} \\
  \end{tabulary}
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  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 9th July, 2020.\\
   Page {\thepage} of \pageref{LastPage}.
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  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
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\begin{document}
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% www.emerson.emory.edu/services/latex/latex_169.html
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\begin{multicols*}{2}

\begin{tabularx}{8.4cm}{x{2.8 cm} x{5.2 cm} }
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\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Introduction}}  \tn
% Row 0
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{\bf{Quality Management}} & ensure that the development processes are suitable \tn 
% Row Count 2 (+ 2)
% Row 1
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{\bf{Quality Assurance}} & ensure that the development steps provided the desired results \tn 
% Row Count 5 (+ 3)
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\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
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\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Terminology}}  \tn
% Row 0
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\mymulticolumn{1}{x{8.4cm}}{System} \tn 
\mymulticolumn{1}{x{8.4cm}}{\hspace*{6 px}\rule{2px}{6px}\hspace*{6 px}* Technical and organizational means for the autonomous fulfillment of a task \{\{nl\}\}*Generally, a system can consist of hardware, software, people (service and maintenance personnel) and logistic assistance} \tn 
% Row Count 6 (+ 6)
% Row 1
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\mymulticolumn{1}{x{8.4cm}}{Technical System} \tn 
\mymulticolumn{1}{x{8.4cm}}{\hspace*{6 px}\rule{2px}{6px}\hspace*{6 px}* System where influences by people and logistics are ignored} \tn 
% Row Count 9 (+ 3)
% Row 2
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\mymulticolumn{1}{x{8.4cm}}{Quality} \tn 
\mymulticolumn{1}{x{8.4cm}}{\hspace*{6 px}\rule{2px}{6px}\hspace*{6 px}* Degree in which the inherent (anhaftend, dazugeh{\"o}rend) attributes of an entitiy fulfill quality requirements} \tn 
% Row Count 13 (+ 4)
% Row 3
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\mymulticolumn{1}{x{8.4cm}}{Quality Requirement} \tn 
\mymulticolumn{1}{x{8.4cm}}{\hspace*{6 px}\rule{2px}{6px}\hspace*{6 px}* Expectation or demand defined (by a customer) that is generally assumed or mandatory} \tn 
% Row Count 16 (+ 3)
% Row 4
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\mymulticolumn{1}{x{8.4cm}}{Quality Characteristics} \tn 
\mymulticolumn{1}{x{8.4cm}}{\hspace*{6 px}\rule{2px}{6px}\hspace*{6 px}* Property of an entity on the basis of which its quality is described and estimated, but which makes no statement about the degree of fulfillment of the characteristic \{\{nl\}\} * A quality characteristic can be refined incrementally into partial characteristics \{\{nl\}\} * Inherent attribute of a process, product or a system that relates to a quality requirement /DIN EN ISO 9000 05/} \tn 
% Row Count 26 (+ 10)
% Row 5
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\mymulticolumn{1}{x{8.4cm}}{Quality Measure} \tn 
\mymulticolumn{1}{x{8.4cm}}{\hspace*{6 px}\rule{2px}{6px}\hspace*{6 px}* Measure which allows to draw conclusions on the fulfillment of specific quality characteristics. For instance, MTTF (Mean Time To Failure) is a quality measure of the quality characteristic Reliability} \tn 
% Row Count 32 (+ 6)
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\par\addvspace{1.3em}

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\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Terminology (cont)}}  \tn
% Row 6
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\mymulticolumn{1}{x{8.4cm}}{Safety} \tn 
\mymulticolumn{1}{x{8.4cm}}{\hspace*{6 px}\rule{2px}{6px}\hspace*{6 px}* State where the danger of a personal or property damage is reduced to an acceptable value (DIN EN ISO 8402) \{\{nl\}\} * Birolini defines safety as a measure for the ability of an item to endanger neither persons, property nor the environment \{\{nl\}\} * A distinction is drawn between the safety of a failure-free system (accident prevention) and the technical safety of a failure afflicted system \{\{nl\}\} * Absence of unacceptable risks /IEC 61508 98/ \{\{nl\}\} {\bf{Safety analysis aims at proving that the actual risk is below the acceptable risk}}} \tn 
% Row Count 13 (+ 13)
% Row 7
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\mymulticolumn{1}{x{8.4cm}}{Technical Safety} \tn 
\mymulticolumn{1}{x{8.4cm}}{\hspace*{6 px}\rule{2px}{6px}\hspace*{6 px}* Measure for the ability of a failure afflicted item to endanger neither persons, property nor the environment} \tn 
% Row Count 17 (+ 4)
% Row 8
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\mymulticolumn{1}{x{8.4cm}}{Correctness} \tn 
\mymulticolumn{1}{x{8.4cm}}{\hspace*{6 px}\rule{2px}{6px}\hspace*{6 px}* Correctness has a binary character, i.e., an item is either correct or incorrect \{\{nl\}\} * A fault-free realization is correct \{\{nl\}\} * An artifact is correct if it is consistent to its specification \{\{nl\}\} * If no specification exists for an artifact, correctness is not defined} \tn 
% Row Count 25 (+ 8)
% Row 9
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\mymulticolumn{1}{x{8.4cm}}{Completeness} \tn 
\mymulticolumn{1}{x{8.4cm}}{\hspace*{6 px}\rule{2px}{6px}\hspace*{6 px}* A system is functional complete, if all functions required in the specification are implemented. This concerns the treatment of normal cases as well as the interception of failure situations} \tn 
% Row Count 31 (+ 6)
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\mymulticolumn{1}{x{8.4cm}}{Robustness} \tn 
\mymulticolumn{1}{x{8.4cm}}{\hspace*{6 px}\rule{2px}{6px}\hspace*{6 px}* Property to deliver an acceptable behavior also in exceptional situations (e.g. ability of a software to detect hardware failures) \{\{nl\}\} * A correct system – as measured by the specification – can have a low robustness, actually \{\{nl\}\} * Accordingly, robustness is rather a property of the specification than of the implementation \{\{nl\}\} * A robust program is the result of the correct implementation of a good and complete specification \{\{nl\}\} *  Robustness has a gradual character} \tn 
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% Row 11
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\mymulticolumn{1}{x{8.4cm}}{Reliability} \tn 
\mymulticolumn{1}{x{8.4cm}}{\hspace*{6 px}\rule{2px}{6px}\hspace*{6 px}* Part of the quality with regard to the behavior of an entity during or after given time periods with given working conditions (DIN 40041) \{\{nl\}\} * Collective term for the description of the power concerning availability and its influencing factors: power concerning functionality, maintainability and maintainability support (DIN EN ISO 8402) \{\{nl\}\} * Property of an entity regarding its qualification to fulfill the reliability requirements during or after given time periods with given application requirements (DIN ISO 9000) \{\{nl\}\} *  Measure for the ability of an item to remain functional, expressed by the probability that the required function is executed failure-free under given working conditions during a given time period (based on Birolini, ETH)} \tn 
% Row Count 30 (+ 18)
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\mymulticolumn{1}{x{8.4cm}}{\hspace*{6 px}\rule{2px}{6px}\hspace*{6 px}*  Measure for the ability of an item to be functional at a given time} \tn 
% Row Count 3 (+ 3)
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% That's all folks
\end{multicols*}

\end{document}