TikZ : un schéma

\documentclass{minimal}
\usepackage{tikz}
\usepackage{pgf}

\begin{document}

\begin{tikzpicture}
        % Titres des zones
    \node (ZA) at (-4,9) {Zone A};
    \node (ZB) at (2,9) {Zone B};
    \node (ZC) at (8,9) {Zone C};

    % Zones (rectangles aux coins arrondis)
\draw[rounded corners=3pt] (-6,-1) rectangle (-2,8);
\draw[rounded corners=3pt] (0,-1) rectangle (4,8);
\draw[rounded corners=3pt] (6,-1) rectangle (10,8);

    % Lignes parallèles
    \draw (-4,7) -- (8,7) ;
    \draw (2,6) -- (8,6) ;
    \draw (2,5) -- (8,5) ;
    \draw (2,4) -- (8,4) ;
    \draw (2,1) -- (8,1) ;
    \draw (2,0) -- (8,0) ;

    % Points
    \draw (-4,7) node{$\bullet$} ;
    \draw (2,6) node{$\bullet$};
    \draw (2,5) node{$\bullet$} ;
    \draw (2,4) node{$\bullet$} ;
    \draw (2,1) node{$\bullet$} ;
    \draw (2,0) node{$\bullet$} ;

    \draw (8,7) node{$\bullet$} ;
    \draw (8,6) node{$\bullet$};
    \draw (8,5) node{$\bullet$} ;
    \draw (8,4) node{$\bullet$} ;
    \draw (8,3) node{$\bullet$} ;
    \draw (8,2) node{$\bullet$} ;
    \draw (8,1) node{$\bullet$} ;
    \draw (8,0) node{$\bullet$} ;

    % Indications
    \node (E1-1) at (-1,7.25) {E 1} ;
    \node (PTh) at (2,7.25) {Path thru};
    \node (E1-2) at (5,7.25) {E 1};
    \node (E2) at (5,6.25) {Élément 2};
    \node (E3) at (5,5.25) {Élément 3};
    \node (E4) at (5,4.25) {Élément 4};
    \node (E7) at (5,1.25) {Élément 7};
    \node (E8) at (5,0.25) {Élément 8};
\end{tikzpicture}

\end{document}