diff --git a/classes/models/BaseUserModel.php b/classes/models/BaseUserModel.php
new file mode 100644
index 0000000..01c292e
--- /dev/null
+++ b/classes/models/BaseUserModel.php
@@ -0,0 +1,31 @@
+<?php
+/**
+ * Base user model that contains identification information
+ * about the user
+ * 
+ * @author Pierre HUBERT
+ */
+
+class BaseUserModel {
+
+	//Private fields
+	private $userID = 0;
+
+	//Set and get user ID
+	public function set_id(int $id){
+		$this->id = $id;
+	}
+
+	public function get_id() : int {
+		return $this->id;
+	}
+	
+	/**
+	 * Check wether this object is valid or not
+	 * 
+	 * @return bool TRUE if this object is valid / FALSE else
+	 */
+	public function isValid() : bool {
+		return $this->id > 0;
+	}
+}
\ No newline at end of file
diff --git a/classes/models/GeneralSettings.php b/classes/models/GeneralSettings.php
index c9ff17e..6a1bea9 100644
--- a/classes/models/GeneralSettings.php
+++ b/classes/models/GeneralSettings.php
@@ -5,10 +5,9 @@
  * @author Pierre HUBERT
  */
 
-class GeneralSettings {
+class GeneralSettings extends BaseUserModel {
 
 	//Private fields
-	private $id;
 	private $email;
 	private $firstName;
 	private $lastName;
@@ -21,15 +20,6 @@ class GeneralSettings {
 	private $virtualDirectory;
 	private $personnalWebsite;
 
-	//Set and get user ID
-	public function set_id(int $id){
-		$this->id = $id;
-	}
-
-	public function get_id() : int {
-		return $this->id;
-	}
-
 	//Set and get the email address of the user
 	public function set_email(string $email){
 		$this->email = $email;
@@ -150,13 +140,4 @@ class GeneralSettings {
 	public function get_personnalWebsite() : string {
 		return $this->personnalWebsite != null ? $this->personnalWebsite : "null";
 	}
-
-	/**
-	 * Check wether is object is valid or not
-	 * 
-	 * @return bool TRUE if this object is valid / FALSE else
-	 */
-	public function isValid() : bool {
-		return $this->id > 0;
-	}
 }
\ No newline at end of file
diff --git a/classes/models/SecuritySettings.php b/classes/models/SecuritySettings.php
index 44e64f1..1a14551 100644
--- a/classes/models/SecuritySettings.php
+++ b/classes/models/SecuritySettings.php
@@ -5,7 +5,7 @@
  * @author Pierre HUBERT
  */
 
-class SecuritySettings {
+class SecuritySettings extends BaseUserModel {
 
 	//Private fields
 	private $security_question_1;
@@ -54,7 +54,7 @@ class SecuritySettings {
 	public function get_security_question_2() : string {
 		return $this->security_question_2 != null ? $this->security_question_2 : "null";
 	}
-	
+
 
 	//Set and get second security answer
 	public function set_security_answer_2(string $security_answer_2){
diff --git a/classes/models/User.php b/classes/models/User.php
index 99460c8..a7a2d2e 100644
--- a/classes/models/User.php
+++ b/classes/models/User.php
@@ -5,10 +5,12 @@
  * @author Pierre HUBERT
  */
 
-class User {
+//This model requires the BaseUserModel to be loaded
+require_once __DIR__."/BaseUserModel.php";
+
+class User extends BaseUserModel {
 
 	//Private fields
-	private $id;
 	private $firstName;
 	private $lastName;
 	private $publicPage;
@@ -16,26 +18,6 @@ class User {
 	private $virtualDirectory;
 	private $accountImageURL;
 
-	/**
-	 * Public constructor of this object
-	 */
-	public function __construct(){
-		
-		//Set the user ID to 0 by default (invalid user)
-		$this->set_id(0);
-
-	}
-
-	//Set and get user ID
-	public function set_id(int $id){
-		$this->id = $id;
-	}
-
-	public function get_id() : int {
-		return $this->id;
-	}
-
-
 	//Set and get the first name of the user
 	public function set_firstName(string $firstName){
 		$this->firstName = $firstName;
@@ -96,13 +78,4 @@ class User {
 	public function get_accountImageURL() : string {
 		return $this->accountImageURL;
 	}
-
-	/**
-	 * Check wether is object is valid or not
-	 * 
-	 * @return bool TRUE if this object is valid / FALSE else
-	 */
-	public function isValid() : bool {
-		return $this->id > 0;
-	}
 }
\ No newline at end of file