diff --git a/src/app/interface/interface_resp.c b/src/app/interface/interface_resp.c
index f1afd34..0e68114 100644
--- a/src/app/interface/interface_resp.c
+++ b/src/app/interface/interface_resp.c
@@ -1 +1,54 @@
+#include <stdio.h>
 #include "interface_resp.h"
+
+void affichArticles( int tRef[], float tPoids[], float tVol[], float tPrix[], int tPhysique)
+{
+    int i;
+    printf("______________________________________\n");
+    printf("\t Liste des articles \n\n");
+    for ( i = 0; i < tPhysique; ++i)
+    {
+        printf("\t %d  %.2f  %.2f  %.2f\n\n", tRef[i], tPoids[i], tVol[i], tPrix[i]);
+    }      
+}
+
+void affichUnArticle(int tRef[], float tPoids[], float tVol[], float tPrix[], int tLogique, int val)
+{
+    int i;
+    for ( i = 0; i < tLogique; ++i)
+    {
+        if ( val == tRef[i] )
+        {
+            printf("\t %d  %.2f  %.2f  %.2f\n\n", tRef[i], tPoids[i], tVol[i], tPrix[i]);
+            return;
+        }
+    }
+    fprintf(stderr"Article introuvable");
+    printf("Article introuvable");
+    return;    
+}
+
+void affichUnClient(int tNumClient[], float tCagnotte[], int tSus[], int tLogique, int val)
+{
+    int i;
+    for ( i = 0; i < tLogique; ++i)
+    {
+        if ( val == tNumClient[i] )
+        {
+            printf("\t %d %.2f %d\n\n", tNumClient[i], tCagnotte[i], tSus[i]);
+        }
+    }
+    fprintf(stderr"Client introuvable");
+    printf("Client introuvable");
+}
+
+void affichUnClients(int tNumClient[], float tCagnotte[], int tSus[], int tLogique, int val)
+{
+    int i;
+    for ( i = 0; i < tLogique; ++i)
+    {
+        printf("\t %d %.2f %d\n\n", tNumClient[i], tCagnotte[i], tSus[i]);
+    }
+    fprintf(stderr"Client introuvable");
+    printf("Client introuvable");
+}
\ No newline at end of file