% \documentclass[11pt,a4paper,twoside]{article}
%   \usepackage[T1]{fontenc}
%   \usepackage[applemac]{inputenc}
%   % \usepackage[latin1]{inputenc}
%   \usepackage{pst-uml}
% \begin{document}

\begin{center}
   % \scalebox{0.5}{%}  Fonctionne egalement
   \resizebox{0.9\linewidth}{!}{%
     \begin{pspicture}(0,0.5)(15,13.5)%\psgrid
     \psset{framesep=0}
     % 
     \psframe[linewidth=0.5pt, linestyle=dashed](3,14)(12,0.5)
     \rput(7.5,1){\Large Système à développer}
     % 
     \rput(1,12){\rnode{acCL}{\umlActor{Client}}}
     \rput(1,6){\rnode{acSC}{\umlActor{Service\\Clientèle}}}
     \rput(14,4){\rnode{acST}{\umlActor{Service\\Technique}}}
     \rput(14,11.5){\rnode{acSU}{\umlActor{Superviseur}}}
     % 
     % 
     % \umlPutCase{5,13}{VISU}{\\[0mm]Visualiser\\[0mm]}
     \umlPutCase{5,13}{VISU}{Visualiser}
     \umlPutCase{5,5}{SR}{Saisir\\Risques}
     \umlPutCase{5,3}{SD}{Saisir\\Demandes}
     \umlPutCase{5,8}{RD}{Routage\\demandes}
     \umlPutCase{10,10}{ICB}{%
              Identifier\\
              contraintes\\
              bloquantes}
     \umlPutCase{10,3}{MR}{Modifie\\ Réseau }
     \umlPutCase{5,11}{VAD}{Vérifier\\ acceptation\\demande }
     \umlPutCase{10,5}{IR}{Indiquer\\risques }
     \umlPutCase{10,13}{PM}{Préparer\\modif .}
     %
     \ncline{acCL}{VAD}
     \ncline{acCL}{VISU}
     \ncline{acSC}{SR}
     \ncline{acSC}{SD}
     \ncline{acSC}{RD}
     \ncline{acSU}{ICB}
     \ncline{acSU}{PM}
     \ncline{acST}{IR}
     \ncline{acST}{MR}
     % 
     \ncline{RD}{ICB}\naput[nrot=:U]{\umlStereoType{uses}}
     \ncputicon{umlHerit}
     \ncline{IR}{SR}\nbput[nrot=:D,npos=0.65]{\umlStereoType{uses}}
     \ncputicon{umlHerit}
     \end{pspicture}
   }%end resizeORscalebox
\end{center}


% \end{document}