diff --git a/EXOS/Exam2020.tex b/EXOS/Exam2020.tex
index 193f9dd..823a890 100644
--- a/EXOS/Exam2020.tex
+++ b/EXOS/Exam2020.tex
@@ -139,10 +139,10 @@ loués.
 
 MCD de l’application : 
 
-\newpage
-\begin{center}
-  \includegraphics{MCD.png}
-\end{center}
+%\newpage
+%\begin{center}
+%  \includegraphics{MCD.png}
+%\end{center}
 
 \begin{center}
      	   \begin{tikzpicture}[every node/.style={inner sep=0,outer sep=0}]
@@ -188,7 +188,7 @@ nombre\\
 
 
 
-      \node (DFres) at (13,-3) {
+      \node (DFres) at (14,-3) {
                \begin{varwidth}{1.5in}
  \begin{tabular}{l}
 \rowcolor{Gray}DF\_reserver\\
@@ -214,7 +214,7 @@ nombre\\
 
 
 
-      \node (fact) at (7,-3) {
+      \node (fact) at (6.5,-3) {
                \begin{varwidth}{1.5in}
  \begin{tabular}{l}
 \rowcolor{Gray}facturer\\
@@ -302,25 +302,25 @@ num\'ero\\
 \end{tabular}
 };
 
-\draw (equip) --  (con);
-\draw (res) --  (con);
-\draw (faire) -- (c);
-\draw (res) -- (faire);
-\draw (res) -- (DFres);
-\draw (cre) -- (DFres);
-\draw (cre) -- (fact);
-\draw (fact) -- (g);
-\draw (g) -- (DFpra);
-\draw (ter) -- (DFpra);
-\draw (ter) -- (DFcon);
-\draw (res) -- (DFcon);
+\draw (equip) --  (con) node [pos=0.5, above] {$0,n$};
+\draw (res) --  (con) node [midway, right] {$0,n$};
+\draw (faire) -- (c) node [midway, above] {$0,n$};
+\draw (res) -- (faire)  node [midway, above] {$1,n$};
+\draw (res) -- (DFres) node [midway, above] {$1,1$};
+\draw (cre) -- (DFres) node [midway, above] {$0,n$};
+\draw (cre) -- (fact) node [midway, above] {$0,n$};
+\draw (fact) -- (g)  node [midway, above] {$0,n$};
+\draw (g) -- (DFpra)  node [midway, above] {$1,n$};
+\draw (ter) -- (DFpra)  node [midway, right] {$1,1$};
+\draw (ter) -- (DFcon)  node [midway, above] {$0,n$};
+\draw (res) -- (DFcon)  node [midway, above] {$1,1$};
 
 
 
            \end{tikzpicture}
 \end{center}
 
-  \newpage
+%  \newpage
 
 
 Modèle relationnel :