diff --git a/src/main/java/DAO/ChoixDAO.java b/src/main/java/DAO/ChoixDAO.java
new file mode 100644
index 0000000..d48071f
--- /dev/null
+++ b/src/main/java/DAO/ChoixDAO.java
@@ -0,0 +1,4 @@
+package DAO;
+
+public class ChoixDAO {
+}
diff --git a/src/main/java/DAO/QuestionDAO.java b/src/main/java/DAO/QuestionDAO.java
new file mode 100644
index 0000000..102d33f
--- /dev/null
+++ b/src/main/java/DAO/QuestionDAO.java
@@ -0,0 +1,4 @@
+package DAO;
+
+public class QuestionDAO {
+}
diff --git a/src/main/java/DAO/QuizzDAO.java b/src/main/java/DAO/QuizzDAO.java
new file mode 100644
index 0000000..460421c
--- /dev/null
+++ b/src/main/java/DAO/QuizzDAO.java
@@ -0,0 +1,4 @@
+package DAO;
+
+public class QuizzDAO {
+}
diff --git a/src/main/java/DAO/ReponseCourteDAO.java b/src/main/java/DAO/ReponseCourteDAO.java
new file mode 100644
index 0000000..8ec07ba
--- /dev/null
+++ b/src/main/java/DAO/ReponseCourteDAO.java
@@ -0,0 +1,5 @@
+package DAO;
+
+public class ReponseCourteDAO {
+
+}
diff --git a/src/main/java/DAO/ReponseDAO.java b/src/main/java/DAO/ReponseDAO.java
new file mode 100644
index 0000000..3f82a85
--- /dev/null
+++ b/src/main/java/DAO/ReponseDAO.java
@@ -0,0 +1,4 @@
+package DAO;
+
+public class ReponseDAO {
+}
diff --git a/src/main/java/DAO/SessionDAO.java b/src/main/java/DAO/SessionDAO.java
new file mode 100644
index 0000000..21b2585
--- /dev/null
+++ b/src/main/java/DAO/SessionDAO.java
@@ -0,0 +1,4 @@
+package DAO;
+
+public class SessionDAO {
+}
diff --git a/src/main/java/DAO/Tous.java b/src/main/java/DAO/Tous.java
new file mode 100644
index 0000000..36ec12b
--- /dev/null
+++ b/src/main/java/DAO/Tous.java
@@ -0,0 +1,14 @@
+package DAO;
+
+import java.io.Serializable;
+import java.util.List;
+
+public interface Tous<T, Id extends Serializable> {
+    T create(T t);
+    T update(T t);
+    T read(Id id);
+    void delete(T t);
+    List<T> findAll();
+
+    T save(T t);
+}
diff --git a/src/main/java/DAO/TousDAOImpl.java b/src/main/java/DAO/TousDAOImpl.java
new file mode 100644
index 0000000..6e691bf
--- /dev/null
+++ b/src/main/java/DAO/TousDAOImpl.java
@@ -0,0 +1,31 @@
+package DAO;
+
+import jakarta.persistence.EntityManager;
+import jakarta.persistence.EntityTransaction;
+import jakarta.persistence.PersistenceException;
+import jpa.EntityManagerHelper;
+
+import java.io.Serializable;
+
+public abstract class TousDAOImpl<T, Id extends Serializable> implements Tous<T, Id> {
+    protected EntityManager em;
+    private Class<T> entityClass;
+
+    public TousDAOImpl() {
+        this.em = EntityManagerHelper.getEntityManager();
+    }
+
+    @Override
+    public T save(T t) {
+        EntityTransaction tx = em.getTransaction();
+        try {
+            tx.begin();
+            em.persist(t);
+            tx.commit();
+            return t;
+        } catch (PersistenceException e) {
+            throw new PersistenceException(e.getMessage());
+        }
+    }
+}
+
diff --git a/src/main/java/DAO/UtilisateurDAO.java b/src/main/java/DAO/UtilisateurDAO.java
new file mode 100644
index 0000000..c05dcfc
--- /dev/null
+++ b/src/main/java/DAO/UtilisateurDAO.java
@@ -0,0 +1,4 @@
+package DAO;
+
+public class UtilisateurDAO {
+}