diff --git a/src/main/java/metier/Activity.java b/src/main/java/metier/Activity.java
index d82eeba..c725218 100644
--- a/src/main/java/metier/Activity.java
+++ b/src/main/java/metier/Activity.java
@@ -1,5 +1,5 @@
 package metier;
 
 public abstract class Activity {
-
+    private long id_utilisateur_created;
 }
diff --git a/src/main/java/metier/Reponse.java b/src/main/java/metier/Reponse.java
index e60e1d0..23865a9 100644
--- a/src/main/java/metier/Reponse.java
+++ b/src/main/java/metier/Reponse.java
@@ -4,9 +4,9 @@ import jakarta.persistence.Id;
 
 public abstract class Reponse {
     @Id
-    int id;
-    String value;
-    Boolean correct;
+    private int id;
+    private String value;
+    private Boolean correct;
 
     public Reponse(){
     }
diff --git a/src/main/java/metier/Session.java b/src/main/java/metier/Session.java
index d53f022..c1ac826 100644
--- a/src/main/java/metier/Session.java
+++ b/src/main/java/metier/Session.java
@@ -10,10 +10,10 @@ import jakarta.persistence.OneToMany;
 public class Session {
 
     @Id
-    protected int codePIN;
+    private int codePIN;
 
     @OneToMany
-    ArrayList<Activity> activities;
+    private ArrayList<Activity> activities;
 
     public Session(){
     }
diff --git a/src/main/java/metier/Utilisateur.java b/src/main/java/metier/Utilisateur.java
index 64d7941..a59063e 100644
--- a/src/main/java/metier/Utilisateur.java
+++ b/src/main/java/metier/Utilisateur.java
@@ -2,15 +2,27 @@ package metier;
 
 import jakarta.persistence.*;
 
+import java.util.List;
+
 @Entity
 public class Utilisateur{
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     private long id;
     private String name;
+
     @ManyToMany
     private Session session;
 
+    @Column(unique=true)
+    private String email;
+    private String password;
+
+    @OneToMany(mappedBy = "utilisateur")
+    private List<Activity> activities;
+
+    public Utilisateur() {}
+
     public Long getId() {
         return id;
     }