diff --git a/src/application/models/Admins_model.php b/src/application/models/Admins_model.php
index f002a32e..0c371016 100644
--- a/src/application/models/Admins_model.php
+++ b/src/application/models/Admins_model.php
@@ -33,13 +33,6 @@
  * @package Models
  */
 class Admins_Model extends CI_Model {
-    /**
-     * Class Constructor
-     */
-    public function __construct() {
-        parent::__construct();
-    }
-    
     /**
      * Add (insert or update) an admin user record into database.
      * 
diff --git a/src/application/models/Appointments_model.php b/src/application/models/Appointments_model.php
index a4636573..25ec2ae1 100644
--- a/src/application/models/Appointments_model.php
+++ b/src/application/models/Appointments_model.php
@@ -17,13 +17,6 @@
  * @package Models
  */
 class Appointments_Model extends CI_Model {
-    /**
-     * Class Constructor
-     */
-    public function __construct() {
-        parent::__construct();
-    }
-
     /**
      * Add an appointment record to the database.
      *
@@ -68,7 +61,7 @@ class Appointments_Model extends CI_Model {
                 || !isset($appointment['id_users_customer'])
                 || !isset($appointment['id_services'])) {
             throw new Exception('Not all appointment field values '
-                    . 'are provided : ' . print_r($appointment, TRUE));
+                    . 'are provided: ' . print_r($appointment, TRUE));
         }
 
         $num_rows = $this->db->get_where('ea_appointments', array(
@@ -253,7 +246,7 @@ class Appointments_Model extends CI_Model {
     public function get_row($appointment_id) {
         if (!is_numeric($appointment_id)) {
             throw new Exception('Invalid argument given. Expected '
-                    . 'integer for the $appointment_id : ' . $appointment_id);
+                    . 'integer for the $appointment_id: ' . $appointment_id);
         }
         return $this->db->get_where('ea_appointments',
                 array('id' => $appointment_id))->row_array();
@@ -269,18 +262,18 @@ class Appointments_Model extends CI_Model {
     public function get_value($field_name, $appointment_id) {
         if (!is_numeric($appointment_id)) {
             throw new Exception('Invalid argument given, expected '
-                    . 'integer for the $appointment_id : ' . $appointment_id);
+                    . 'integer for the $appointment_id: ' . $appointment_id);
         }
 
         if (!is_string($field_name)) {
             throw new Exception('Invalid argument given, expected '
-                    . 'string for the $field_name : ' . $field_name);
+                    . 'string for the $field_name: ' . $field_name);
         }
 
         if ($this->db->get_where('ea_appointments',
                 array('id' => $appointment_id))->num_rows() == 0) {
             throw new Exception('The record with the provided id '
-                    . 'does not exist in the database : ' . $appointment_id);
+                    . 'does not exist in the database: ' . $appointment_id);
         }
 
         $row_data = $this->db->get_where('ea_appointments',
@@ -288,7 +281,7 @@ class Appointments_Model extends CI_Model {
 
         if (!isset($row_data[$field_name])) {
             throw new Exception('The given field name does not '
-                    . 'exist in the database : ' . $field_name);
+                    . 'exist in the database: ' . $field_name);
         }
 
         return $row_data[$field_name];
diff --git a/src/application/models/Customers_model.php b/src/application/models/Customers_model.php
index e50d9e91..df3895bb 100644
--- a/src/application/models/Customers_model.php
+++ b/src/application/models/Customers_model.php
@@ -17,13 +17,6 @@
  * @package Models
  */
 class Customers_Model extends CI_Model {
-    /**
-     * Class Constructor
-     */
-    public function __construct() {
-        parent::__construct();
-    }
-
     /**
      * Add a customer record to the database.
      *
@@ -148,7 +141,7 @@ class Customers_Model extends CI_Model {
      */
     public function find_record_id($customer) {
         if (!isset($customer['email'])) {
-            throw new Exception('Customer\'s email was not provided : '
+            throw new Exception('Customer\'s email was not provided: '
                     . print_r($customer, TRUE));
         }
 
@@ -191,13 +184,13 @@ class Customers_Model extends CI_Model {
         if (!isset($customer['last_name'])
                 || !isset($customer['email'])
                 || !isset($customer['phone_number'])) {
-            throw new Exception('Not all required fields are provided : '
+            throw new Exception('Not all required fields are provided: '
                     . print_r($customer, TRUE));
         }
 
         // Validate email address
         if (!filter_var($customer['email'], FILTER_VALIDATE_EMAIL)) {
-            throw new Exception('Invalid email address provided : '
+            throw new Exception('Invalid email address provided: '
                     . $customer['email']);
         }
 
@@ -230,7 +223,7 @@ class Customers_Model extends CI_Model {
      */
     public function delete($customer_id) {
         if (!is_numeric($customer_id)) {
-            throw new Exception('Invalid argument type $customer_id : ' . $customer_id);
+            throw new Exception('Invalid argument type $customer_id: ' . $customer_id);
         }
 
         $num_rows = $this->db->get_where('ea_users', array('id' => $customer_id))->num_rows();
@@ -266,25 +259,25 @@ class Customers_Model extends CI_Model {
      */
     public function get_value($field_name, $customer_id) {
         if (!is_numeric($customer_id)) {
-            throw new Exception('Invalid argument provided as $customer_id : '
+            throw new Exception('Invalid argument provided as $customer_id: '
                     . $customer_id);
         }
 
         if (!is_string($field_name)) {
-            throw new Exception('$field_name argument is not a string : '
+            throw new Exception('$field_name argument is not a string: '
                     . $field_name);
         }
 
         if ($this->db->get_where('ea_users', array('id' => $customer_id))->num_rows() == 0) {
             throw new Exception('The record with the $customer_id argument '
-                    . 'does not exist in the database : ' . $customer_id);
+                    . 'does not exist in the database: ' . $customer_id);
         }
 
         $row_data = $this->db->get_where('ea_users', array('id' => $customer_id)
                 )->row_array();
         if (!isset($row_data[$field_name])) {
             throw new Exception('The given $field_name argument does not'
-                    . 'exist in the database : ' . $field_name);
+                    . 'exist in the database: ' . $field_name);
         }
 
         $customer = $this->db->get_where('ea_users', array('id' => $customer_id))->row_array();
diff --git a/src/application/models/Providers_model.php b/src/application/models/Providers_model.php
index 455089e1..b11271a8 100644
--- a/src/application/models/Providers_model.php
+++ b/src/application/models/Providers_model.php
@@ -45,13 +45,6 @@
  * @package Models
  */
 class Providers_Model extends CI_Model {
-    /**
-     * Class Constructor
-     */
-    public function __construct() {
-        parent::__construct();
-    }
-
     /**
      * Add (insert - update) a service provider record.
      *
diff --git a/src/application/models/Roles_model.php b/src/application/models/Roles_model.php
index 9079c8fe..517f1102 100644
--- a/src/application/models/Roles_model.php
+++ b/src/application/models/Roles_model.php
@@ -17,13 +17,6 @@
  * @package Models
  */
 class Roles_Model extends CI_Model {
-    /**
-     * Class Constructor
-     */
-    public function __construct() {
-        parent::__construct();
-    }
-
     /**
      * Get the record id of a particular role.
      *
diff --git a/src/application/models/Secretaries_model.php b/src/application/models/Secretaries_model.php
index f08a123f..802a9bfd 100644
--- a/src/application/models/Secretaries_model.php
+++ b/src/application/models/Secretaries_model.php
@@ -34,13 +34,6 @@
  * @package Models
  */
 class Secretaries_Model extends CI_Model {
-    /**
-     * Class Constructor
-     */
-    public function __construct() {
-        parent::__construct();
-    }
-
     /**
      * Add (insert or update) a secretary user record into database.
      *
diff --git a/src/application/models/Services_model.php b/src/application/models/Services_model.php
index e9656d05..c3c840ab 100644
--- a/src/application/models/Services_model.php
+++ b/src/application/models/Services_model.php
@@ -17,13 +17,6 @@
  * @package Models
  */
 class Services_Model extends CI_Model {
-    /**
-     * Class Constructor
-     */
-    function __construct() {
-        parent::__construct();
-    }
-
     /**
      * Add (insert or update) a service record on the database
      *
@@ -220,20 +213,20 @@ class Services_Model extends CI_Model {
      */
     public function get_value($field_name, $service_id) {
         if (!is_numeric($service_id)) {
-            throw new Exception('Invalid argument provided as $service_id : ' . $service_id);
+            throw new Exception('Invalid argument provided as $service_id: ' . $service_id);
         }
 
         if (!is_string($field_name)) {
-            throw new Exception('$field_name argument is not a string : ' . $field_name);
+            throw new Exception('$field_name argument is not a string: ' . $field_name);
         }
 
         if ($this->db->get_where('ea_services', array('id' => $service_id))->num_rows() == 0) {
-            throw new Exception('The record with the $service_id argument does not exist in the database : ' . $service_id);
+            throw new Exception('The record with the $service_id argument does not exist in the database: ' . $service_id);
         }
 
         $row_data = $this->db->get_where('ea_services', array('id' => $service_id))->row_array();
         if (!isset($row_data[$field_name])) {
-            throw new Exception('The given $field_name argument does not exist in the database : ' . $field_name);
+            throw new Exception('The given $field_name argument does not exist in the database: ' . $field_name);
         }
 
         $setting = $this->db->get_where('ea_services', array('id' => $service_id))->row_array();
diff --git a/src/application/models/Settings_model.php b/src/application/models/Settings_model.php
index 4f4e6d97..7f8379e0 100644
--- a/src/application/models/Settings_model.php
+++ b/src/application/models/Settings_model.php
@@ -17,13 +17,6 @@
  * @package Models
  */
 class Settings_Model extends CI_Model {
-    /**
-     * Class Constructor
-     */
-    function __construct() {
-        parent::__construct();
-    }
-
     /**
      * Get setting value from database.
      *
@@ -37,11 +30,11 @@ class Settings_Model extends CI_Model {
      */
     public function get_setting($name) {
         if (!is_string($name)) { // Check argument type.
-            throw new Exception('$name argument is not a string : ' . $name);
+            throw new Exception('$name argument is not a string: ' . $name);
         }
 
         if ($this->db->get_where('ea_settings', array('name' => $name))->num_rows() == 0) { // Check if setting exists in db.
-            throw new Exception('$name setting does not exist in database : ' . $name);
+            throw new Exception('$name setting does not exist in database: ' . $name);
         }
 
         $query = $this->db->get_where('ea_settings', array('name' => $name));
@@ -63,7 +56,7 @@ class Settings_Model extends CI_Model {
      */
     public function set_setting($name, $value) {
         if (!is_string($name)) {
-            throw new Exception('$name argument is not a string : ' . $name);
+            throw new Exception('$name argument is not a string: ' . $name);
         }
 
         $query = $this->db->get_where('ea_settings', array('name' => $name));
@@ -99,7 +92,7 @@ class Settings_Model extends CI_Model {
      */
     public function remove_setting($name) {
         if (!is_string($name)) {
-            throw new Exception('$name is not a string : ' . $name);
+            throw new Exception('$name is not a string: ' . $name);
         }
 
         if ($this->db->get_where('ea_settings', array('name' => $name))->num_rows() == 0) {
diff --git a/src/application/models/User_model.php b/src/application/models/User_model.php
index dc793755..89d49c17 100644
--- a/src/application/models/User_model.php
+++ b/src/application/models/User_model.php
@@ -20,18 +20,13 @@
  */
 class User_Model extends CI_Model {
     /**
-     * Class Constructor
-     */
-    public function __construct() {
-        parent::__construct();
-    }
-
-    /**
-     * Returns the user settings from the database.
+     * Returns the user from the database for the "settings" page.
      *
-     * @param numeric $user_id User record id of which the settings will be returned.
+     * @param numeric $user_id User record id.
      *
-     * @return array Returns an array with user settings.
+     * @return array Returns an array with user data.
+     *
+     * @todo Refactor this method as it does not do as it states. 
      */
     public function get_settings($user_id) {
         $user = $this->db->get_where('ea_users', array('id' => $user_id))->row_array();
@@ -41,11 +36,13 @@ class User_Model extends CI_Model {
     }
 
     /**
-     * This method saves the user settings into the database.
+     * This method saves the user record into the database (used in backend settings page).
      *
-     * @param array $user Contains the current users settings.
+     * @param array $user Contains the current users data.
      *
      * @return bool Returns the operation result.
+     *
+     * @todo Refactor this method as it does not do as it states. 
      */
     public function save_settings($user) {
         $user_settings = $user['settings'];