diff --git a/backend/build.gradle.kts b/backend/build.gradle.kts
index 91c7679..85fae7b 100644
--- a/backend/build.gradle.kts
+++ b/backend/build.gradle.kts
@@ -19,6 +19,7 @@ dependencies {
 	implementation("org.springframework.boot:spring-boot-starter-jdbc")
 	implementation("org.springframework.boot:spring-boot-starter-mail")
 	implementation("org.springframework.boot:spring-boot-starter-web")
+	implementation("org.springframework.boot:spring-boot-starter-data-jpa")
 	// implementation("org.springframework.session:spring-session-jdbc")
 	developmentOnly("org.springframework.boot:spring-boot-devtools")
 	developmentOnly("org.springframework.boot:spring-boot-docker-compose")
diff --git a/backend/src/main/java/ovh/herisson/Clyde/Tables/Course.java b/backend/src/main/java/ovh/herisson/Clyde/Tables/Course.java
new file mode 100644
index 0000000..b5bdf00
--- /dev/null
+++ b/backend/src/main/java/ovh/herisson/Clyde/Tables/Course.java
@@ -0,0 +1,16 @@
+package ovh.herisson.Clyde.Tables;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+
+@Entity
+public class Course {
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private int CourseID;
+    private int Credits;
+    private String Title;
+    private String Faculty;
+}
diff --git a/backend/src/main/java/ovh/herisson/Clyde/Tables/Cursus.java b/backend/src/main/java/ovh/herisson/Clyde/Tables/Cursus.java
new file mode 100644
index 0000000..c909f9e
--- /dev/null
+++ b/backend/src/main/java/ovh/herisson/Clyde/Tables/Cursus.java
@@ -0,0 +1,16 @@
+package ovh.herisson.Clyde.Tables;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+
+@Entity
+public class Cursus {
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private int CursusId;
+    private int Year;
+    private String Option;
+
+}
diff --git a/backend/src/main/java/ovh/herisson/Clyde/Tables/CursusCourse.java b/backend/src/main/java/ovh/herisson/Clyde/Tables/CursusCourse.java
new file mode 100644
index 0000000..c8a669f
--- /dev/null
+++ b/backend/src/main/java/ovh/herisson/Clyde/Tables/CursusCourse.java
@@ -0,0 +1,16 @@
+package ovh.herisson.Clyde.Tables;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+
+@Entity
+public class CursusCourse {
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private int id;
+    private int CursusId;
+    private int CourseId;
+
+}
diff --git a/backend/src/main/java/ovh/herisson/Clyde/Tables/Role.java b/backend/src/main/java/ovh/herisson/Clyde/Tables/Role.java
new file mode 100644
index 0000000..d9ccb94
--- /dev/null
+++ b/backend/src/main/java/ovh/herisson/Clyde/Tables/Role.java
@@ -0,0 +1,7 @@
+package ovh.herisson.Clyde.Tables;
+
+public enum Role {
+    Teacher,
+    Student;
+
+}
diff --git a/backend/src/main/java/ovh/herisson/Clyde/Tables/Secretary.java b/backend/src/main/java/ovh/herisson/Clyde/Tables/Secretary.java
new file mode 100644
index 0000000..8c2220b
--- /dev/null
+++ b/backend/src/main/java/ovh/herisson/Clyde/Tables/Secretary.java
@@ -0,0 +1,15 @@
+package ovh.herisson.Clyde.Tables;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+
+@Entity
+public class Secretary {
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private int id;
+    private int RegNo;
+    private String Faculty;
+}
diff --git a/backend/src/main/java/ovh/herisson/Clyde/Tables/TeacherGivenCourse.java b/backend/src/main/java/ovh/herisson/Clyde/Tables/TeacherGivenCourse.java
new file mode 100644
index 0000000..cf6e39d
--- /dev/null
+++ b/backend/src/main/java/ovh/herisson/Clyde/Tables/TeacherGivenCourse.java
@@ -0,0 +1,15 @@
+package ovh.herisson.Clyde.Tables;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+
+@Entity
+public class TeacherGivenCourse {
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private int id;
+    private int RegNo;
+    private int CourseId;
+}
diff --git a/backend/src/main/java/ovh/herisson/Clyde/Tables/TeacherOwnerCourse.java b/backend/src/main/java/ovh/herisson/Clyde/Tables/TeacherOwnerCourse.java
new file mode 100644
index 0000000..385f504
--- /dev/null
+++ b/backend/src/main/java/ovh/herisson/Clyde/Tables/TeacherOwnerCourse.java
@@ -0,0 +1,16 @@
+package ovh.herisson.Clyde.Tables;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+
+@Entity
+public class TeacherOwnerCourse {
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private int id;
+
+    private int RegNo;
+    private int CourseId;
+}
diff --git a/backend/src/main/java/ovh/herisson/Clyde/Tables/User.java b/backend/src/main/java/ovh/herisson/Clyde/Tables/User.java
new file mode 100644
index 0000000..ca69efe
--- /dev/null
+++ b/backend/src/main/java/ovh/herisson/Clyde/Tables/User.java
@@ -0,0 +1,35 @@
+package ovh.herisson.Clyde.Tables;
+
+import jakarta.persistence.*;
+
+import java.util.Date;
+
+//Classe représentant un utilisateur l'attribut password demande surement un peu de rafinement niveau sécurité
+//et l'attribut tokenApi doit encore être ajouté vu qu'il faut en discuter
+
+@Entity
+//Je rajoute un s au nom de la table pour éviter les conflits avec les mots réservés
+@Table(name = "Users")
+public class User {
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private int RegNo;
+
+    private String LastName;
+    private String FirstName;
+    private String Email;
+    private String Adress;
+    private String Country;
+    private Date BirthDate;
+    private ovh.herisson.Clyde.Tables.Role Role;
+    private String Password;
+
+    public User(String LastName, String FirstName){
+        this.LastName = LastName;
+        this.FirstName = FirstName;
+    }
+
+    public User() {
+
+    }
+}
diff --git a/backend/src/main/java/ovh/herisson/Clyde/Tables/UserCursus.java b/backend/src/main/java/ovh/herisson/Clyde/Tables/UserCursus.java
new file mode 100644
index 0000000..d638198
--- /dev/null
+++ b/backend/src/main/java/ovh/herisson/Clyde/Tables/UserCursus.java
@@ -0,0 +1,13 @@
+package ovh.herisson.Clyde.Tables;
+
+import jakarta.persistence.*;
+
+@Entity
+@Table(name = "User_Cursus")
+public class UserCursus {
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private int id;
+    private int RegNo;
+    private int CursusId;
+}