diff --git a/src/application/helpers/constants_controller_helper.php b/src/application/helpers/constants_controller_helper.php
new file mode 100644
index 0000000..dcd49b5
--- /dev/null
+++ b/src/application/helpers/constants_controller_helper.php
@@ -0,0 +1,16 @@
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * Views
+ *
+ * @author André Brunnsberg
+ *
+*/
+
+define('CONTROLLER_DEFAULT',			'/');
+
+//Dashboard
+define('CONTROLLER_DASHBOARD',			'dashboard');
+
+//Login
+define('CONTROLLER_LOGIN',				'login');
+define('CONTROLLER_LOGIN_AUTHENTICATE',	'login/authenticate');
diff --git a/src/application/helpers/constants_database_helper.php b/src/application/helpers/constants_database_helper.php
new file mode 100644
index 0000000..07d8ca3
--- /dev/null
+++ b/src/application/helpers/constants_database_helper.php
@@ -0,0 +1,83 @@
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * Database constants
+ *
+ * @author André Brunnsberg
+ *
+*/
+
+//Table Event
+define('DB_TABLE_EVENT',					'Event');
+define('DB_EVENT_ID,',						'Id');
+define('DB_EVENT_NAME',						'Name');
+define('DB_EVENT_STARTDATE',				'StartDate');
+define('DB_EVENT_ENDDATE',					'EndDate');
+define('DB_EVENT_REGISTRATIONDUEDATE',		'RegistrationDueDate');
+define('DB_EVENT_PAYMENTDUEDATE',			'PaymentDueDate');
+define('DB_EVENT_DESCRIPTION',				'Description');
+define('DB_EVENT_PRICE',					'Price');
+define('DB_EVENT_LOCATION',					'Location');
+define('DB_EVENT_ISATCLUB',					'IsAtClub');
+define('DB_EVENT_TYPE',						'Type');
+define('DB_EVENT_ISEXTERNAL',				'IsExternal');
+define('DB_EVENT_RESPONSIBLEID',			'ResponsibleId');
+define('DB_EVENT_CREATED',					'Created');
+define('DB_EVENT_CREATEDBY',				'CreatedBy');
+define('DB_EVENT_MODIFIED',					'Modified');
+define('DB_EVENT_MODIFIEDBY',				'ModifiedBy');
+
+//Table PaymentType
+define('TABLE_PAYMENTTYPE',					'PaymentType');
+define('DB_PAYMENTTYPE_ID',					'Id');
+define('DB_PAYMENTTYPE_NAME',				'Name');
+define('DB_PAYMENTTYPE_CREATED',			'Created');
+define('DB_PAYMENTTYPE_CREATEDBY',			'CreatedBy');
+define('DB_PAYMENTTYPE_MODIFIED',			'Modified');
+define('DB_PAYMENTTYPE_MODIFIEDBY',			'ModifiedBy');
+
+//Table Person
+define('DB_TABLE_PERSON',					'Person');
+define('DB_PERSON_ID',						'Id');
+define('DB_PERSON_FIRSTNAME',				'FirstName');
+define('DB_PERSON_LASTNAME',				'LastName');
+define('DB_PERSON_VOICE',					'Voice');
+define('DB_PERSON_ADDRESS',					'Address');
+define('DB_PERSON_POSTALCODE',				'PostalCode');
+define('DB_PERSON_CITY',					'City');
+define('DB_PERSON_COUNTRYID',				'CountryId');
+define('DB_PERSON_PHONE',					'Phone');
+define('DB_PERSON_EMAIL',					'Email');
+define('DB_PERSON_ALLERGIES',				'Allergies');
+define('DB_PERSON_DESCRIPTION',				'Description');
+define('DB_PERSON_STATUS',					'Status');
+define('DB_PERSON_PASSWORD',				'Password');
+define('DB_PERSON_CREATED',					'Created');
+define('DB_PERSON_CREATEDBY',				'CreatedBy');
+define('DB_PERSON_MODIFIED',				'Modified');
+define('DB_PERSON_MODIFIEDBY',				'ModifiedBy');
+
+//Table PersonHasEvent
+define('DB_TABLE_PERSONHASEVENT',			'PersonHasEvent');
+define('DB_PERSONHASEVENT_PERSONID',		'PersonId');
+define('DB_PERSONHASEVENT_EVENTID',			'EventId');
+define('DB_PERSONHASEVENT_STATUS',			'Status');
+define('DB_PERSONHASEVENT_TRANSACTIONID',	'TransactionId');
+define('DB_PERSONHASEVENT_PAYMENTTYPEID',	'PaymentTypeId');
+define('DB_PERSONHASEVENT_UNREGISTERED',	'Unregistered');
+define('DB_PERSONHASEVENT_CREATED',			'Created');
+define('DB_PERSONHASEVENT_CREATEDBY',		'CreatedBy');
+define('DB_PERSONHASEVENT_MODIFIED',		'Modified');
+define('DB_PERSONHASEVENT_MODIFIEDBY',		'ModifiedBy');
+
+//Table Transaction
+define('DB_TABLE_TRANSACTION',				'Transaction');
+define('DB_TRANSACTION_ID',					'Id');
+define('DB_TRANSACTION_PERSONID',			'PersonId');
+define('DB_TRANSACTION_TRANSACTIONDATE',	'TransactionDate');
+define('DB_TRANSACTION_AMOUNT',				'Amount');
+define('DB_TRANSACTION_DESCRIPTION',		'Description');
+define('DB_TRANSACTION_PAYMENTTYPEID',		'PaymentTypeId');
+define('DB_TRANSACTION_CREATED',			'Created');
+define('DB_TRANSACTION_CREATEDBY',			'CreatedBy');
+define('DB_TRANSACTION_MODIFIED',			'Modified');
+define('DB_TRANSACTION_MODIFIEDBY',			'ModifiedBy');
\ No newline at end of file
diff --git a/src/application/helpers/constants_generic_helper.php b/src/application/helpers/constants_generic_helper.php
new file mode 100644
index 0000000..1bc220f
--- /dev/null
+++ b/src/application/helpers/constants_generic_helper.php
@@ -0,0 +1,16 @@
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * Generic constants
+ *
+ * @author André Brunnsberg
+ *
+*/
+
+//Client
+define('CLIENT_DESKTOP',					'Desktop');
+define('CLIENT_MOBILE',						'Mobile');
+
+//Session
+define('SESSION_LOGGEDIN',					'LoggedIn');
+define('SESSION_PERSONID',					'PersonId');
+define('SESSION_LANG',						'Lang');
\ No newline at end of file
diff --git a/src/application/helpers/constants_language_helper.php b/src/application/helpers/constants_language_helper.php
new file mode 100644
index 0000000..fc34a92
--- /dev/null
+++ b/src/application/helpers/constants_language_helper.php
@@ -0,0 +1,26 @@
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * Languages
+ *
+ * @author André Brunnsberg
+ *
+*/
+
+//File name
+define('LANG_FILE',							'Text');
+
+//Languages
+define('LANG_LANGUAGE_SV',					'sv');	
+
+//Headers
+define('LANG_KEY_LOGIN_HEADER',				'login_header');
+
+//Form buttons
+define('LANG_KEY_FORM_SUBMIT',				'login_form_submit');
+
+//Fields
+define('LANG_KEY_FIELD_EMAIL',				'field_email');
+define('LANG_KEY_FIELD_PASSWORD',			'field_password');
+
+//Error texts
+define('LANG_KEY_ERROR_WRONG_CREDENTIALS',	'error_wrong_credentials');
\ No newline at end of file
diff --git a/src/application/helpers/constants_model_helper.php b/src/application/helpers/constants_model_helper.php
new file mode 100644
index 0000000..dd99a53
--- /dev/null
+++ b/src/application/helpers/constants_model_helper.php
@@ -0,0 +1,12 @@
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * Models
+ *
+ * @author André Brunnsberg
+ *
+*/
+
+define('MODEL_PERSON',		'Person');
+define('MODEL_EVENT',		'Event');
+define('MODEL_PAYMENTTYPE',	'PaymentType');
+define('MODEL_TRANSACTION',	'Transaction');
\ No newline at end of file
diff --git a/src/application/helpers/constants_view_helper.php b/src/application/helpers/constants_view_helper.php
new file mode 100644
index 0000000..41ff621
--- /dev/null
+++ b/src/application/helpers/constants_view_helper.php
@@ -0,0 +1,12 @@
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * Views
+ *
+ * @author André Brunnsberg
+ *
+*/
+
+define('VIEW_GENERIC_HEADER',			'/generic/header');
+define('VIEW_GENERIC_FOOTER',			'/generic/footer');
+
+define('VIEW_CONTENT_LOGIN_FORM',		'/content/login/form');
\ No newline at end of file