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%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
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% of cheat sheets but are needed for some symbol support.
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\author{{[}deleted{]}}
\pdfinfo{
  /Title (software-engineering.pdf)
  /Creator (Cheatography)
  /Author ({[}deleted{]})
  /Subject (Software engineering Cheat Sheet)
}

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% Header and Footer
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\fancyhead[L]{
\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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\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Software engineering Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{{[}deleted{]}} via \textcolor{DarkBackground}{\uline{cheatography.com/28772/cs/8501/}}}
\end{tabulary}
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\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
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  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}{[}deleted{]} \\
  \uline{cheatography.com/deleted-28772} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 26th June, 2016.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
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  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
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  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
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% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.

\begin{multicols*}{2}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Entity-relationship model}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{An {\bf{entity}} is a thing that exists either physically or logically. Entities can be thought of as nouns: {\emph{a company}}, {\emph{a computer}}.} \tn 
% Row Count 3 (+ 3)
% Row 1
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\mymulticolumn{1}{x{8.4cm}}{A {\bf{relationship}} captures how entities are related to one another. Relationships can be thought of as verbs, linking two or more nouns.} \tn 
% Row Count 6 (+ 3)
% Row 2
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\mymulticolumn{1}{x{8.4cm}}{Entities and relationships can both have {\bf{attributes}}.} \tn 
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% Row 3
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\mymulticolumn{1}{x{8.4cm}}{Every entity must have a minimal set of uniquely identifying attributes, which is called the entity's {\bf{primary key}}.} \tn 
% Row Count 11 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Relation representation}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{p{8.4cm}}{\vspace{1px}\centerline{\includegraphics[width=5.1cm]{/web/www.cheatography.com/public/uploads/rarelyimpressed_1466850744_637px-ERD_Representation.svg.png}}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{Various methods of representing the same one to many relationship. In each case, the diagram shows the relationship between a person and a place of birth: each person must have been born at one, and only one, location, but each location may have had zero or more people born at it.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
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\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Links}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{\{\{link="https://en.wikipedia.org/wiki/Entity\%E2\%80\%93relationship\_model"\}\}Entity-relationship models\{\{/link\}\}} \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{\{\{link="https://en.wikipedia.org/wiki/Class\_diagram"\}\}Class diagram\{\{/link\}\}} \tn 
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% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{\{\{link="https://en.wikipedia.org/wiki/Data\_modeling"\}\}Data modeling\{\{/link\}\}} \tn 
% Row Count 7 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{\{\{link="https://en.wikipedia.org/wiki/Use\_case"\}\}Use case\{\{/link\}\}} \tn 
% Row Count 9 (+ 2)
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\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{2.16 cm} x{5.84 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{UML diagrams}}  \tn
% Row 0
\SetRowColor{LightBackground}
class diagram & a type of static structure diagram that describes the structure of a system by showing the system's classes, their attributes, operations, and the relationships among objects. \tn 
% Row Count 7 (+ 7)
% Row 1
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object diagramm & shows a complete or partial view of the system at a given moment of time \tn 
% Row Count 10 (+ 3)
% Row 2
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domain model & conceptual model of the domain that incorporates both: behaviour and data \tn 
% Row Count 13 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Class diagramm}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{p{8.4cm}}{\vspace{1px}\centerline{\includegraphics[width=5.1cm]{/web/www.cheatography.com/public/uploads/rarelyimpressed_1466854090_212px-BankAccount1.svg.png}}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{Three compartments of class diagramm: \newline - Name of the class;  \newline - Attributes of the class; \newline - Methods of the class;}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{p{0.8 cm} x{7.2 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Class members visibility}}  \tn
% Row 0
\SetRowColor{LightBackground}
+ & public \tn 
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% Row 1
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- & private \tn 
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\# & protected \tn 
% Row Count 3 (+ 1)
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/ & derived \tn 
% Row Count 4 (+ 1)
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\textasciitilde{} & package \tn 
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\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{To specify the visibility of a class member (i.e. any attribute or method), these notations must be placed before the member's name}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{UML relations notation}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{p{8.4cm}}{\vspace{1px}\centerline{\includegraphics[width=5.1cm]{/web/www.cheatography.com/public/uploads/rarelyimpressed_1466854449_Uml_classes_en.svg.png}}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{1.76 cm} x{6.24 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Instance-level relationships in class diagramms}}  \tn
% Row 0
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\seqsplit{dependency} & connection between dependent and independent model elements; exists when changes to one element may cause changes in dependent element; this relation in uni-directional \tn 
% Row Count 6 (+ 6)
% Row 1
\SetRowColor{white}
\seqsplit{association} & association is a relationship between two classes when, that allows one instance to perform an action on behalf of another; \tn 
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% Row 2
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\seqsplit{aggregation} & aggregation is a variant of "has a" relationship; it can occur when a class is a collection of other classes; contained classes are not automatically destroyed when the container is \tn 
% Row Count 16 (+ 6)
% Row 3
\SetRowColor{white}
\seqsplit{composition} & more specific version of aggregation; when container destroyed every insance if contains will be destroyed as well; composition unlike aggregation is a "whole-part" relationship \tn 
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\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{Both {\emph{aggregation}} and {\emph{composition}} are types of association betweetn classes. The aggregation relationship is often "catalog" containment to distinguish it from composition's "physical" containment.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{1.76 cm} x{6.24 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Class-level relationship}}  \tn
% Row 0
\SetRowColor{LightBackground}
\seqsplit{inheritance} & indicates that subcless is a cperialized form of superclass; implements "is a" relationship; \tn 
% Row Count 3 (+ 3)
% Row 1
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\seqsplit{realization} & relationship between compotent and it's interface; \tn 
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\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{1.6 cm} x{6.4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{General relationship}}  \tn
% Row 0
\SetRowColor{LightBackground}
\seqsplit{dependency} & weaker form of bond that indicates that one class is dependent on the other; one class depends on another when the independent class is a paramter or local variable; \tn 
% Row Count 6 (+ 6)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}