\documentclass[a4paper,11pt, svgnames]{article}

\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[french]{babel}
\usepackage{listings}
\usepackage{tikz-umld}

\textwidth 18.5cm
\textheight 25.5cm
\hoffset=-2.9cm
\voffset=-2.9cm

\sloppy
\hyphenpenalty 10000000

\date{}
\title{}
\author{}

\lstdefinelanguage{tikzuml}{language=[LaTeX]TeX, classoffset=0, morekeywords={umlbasiccomponent, umlprovidedinterface, umlrequiredinterface, umldelegateconnector, umlassemblyconnector, umlVHVassemblyconnector, umlHVHassemblyconnector, umlnote, umlusecase, umlactor, umlinherit, umlassoc, umlVHextend, umlinclude, umlstateinitial, umlbasicstate, umltrans, umlstatefinal, umlVHtrans, umlHVtrans, umldatabase, umlmulti, umlobject, umlfpart, umlcreatecall, umlclass, umlvirt, umlunicompo, umlimport, umlaggreg}, keywordstyle=\color{DarkBlue}, classoffset=1, morekeywords={umlcomponent, umlsystem, umlstate, umlseqdiag, umlcall, umlcallself, umlfragment, umlpackage}, keywordstyle=\color{DarkRed}, classoffset=0,  sensitive=true, morecomment=[l]{\%}}

\begin{document}

\maketitle

If you want to copy and paste the following source code, please take care of white spaces and special characters such as the minus symbol !

\medskip
\lstset{breaklines=true, frame=trBL, language=tikzuml}
\begin{lstlisting}
\begin{umlsystem}[x=4, fill=red!10]{The system}
\umlusecase{use case1}
\umlusecase[y=-2]{use case2}
\umlusecase[y=-4]{use case3}
\umlusecase[x=4, y=-2, width=1.5cm]{use case4 on 2 lines}
\umlusecase[x=6, fill=green!20]{use case5}
\umlusecase[x=6, y=-4]{use case6}
\end{umlsystem}

\umlactor{user}
\umlactor[y=-3]{subuser}
\umlactor[x=14, y=-1.5]{admin}

\umlinherit{subuser}{user}
\umlassoc{user}{usecase-1}
\umlassoc{subuser}{usecase-2}
\umlassoc{subuser}{usecase-3}
\umlassoc{admin}{usecase-5}
\umlassoc{admin}{usecase-6}
\umlinherit{usecase-2}{usecase-1}
\umlVHextend{usecase-5}{usecase-4}
\umlinclude[name=incl]{usecase-3}{usecase-4}

\umlnote[x=7, y=-7]{incl-1}{note on include dependency}
\end{lstlisting}

\begin{center}
\begin{tikzpicture}
\begin{umlsystem}[x=4, fill=red!10]{The system}
\umlusecase{use case1}
\umlusecase[y=-2]{use case2}
\umlusecase[y=-4]{use case3}
\umlusecase[x=4, y=-2, width=1.5cm]{use case4 on 2 lines}
\umlusecase[x=6, fill=green!20]{use case5}
\umlusecase[x=6, y=-4]{use case6}
\end{umlsystem}

\umlactor{user}
\umlactor[y=-3]{subuser}
\umlactor[x=14, y=-1.5]{admin}

\umlinherit{subuser}{user}
\umlassoc{user}{usecase-1}
\umlassoc{subuser}{usecase-2}
\umlassoc{subuser}{usecase-3}
\umlassoc{admin}{usecase-5}
\umlassoc{admin}{usecase-6}
\umlinherit{usecase-2}{usecase-1}
\umlVHextend{usecase-5}{usecase-4}
\umlinclude[name=incl]{usecase-3}{usecase-4}

\umlnote[x=7, y=-7]{incl-1}{note on include dependency}
\end{tikzpicture}
\end{center}
\end{document}