diff --git a/server/controllers/article/add-topic.php b/server/controllers/article/add-topic.php
index 796a81b0..64065e53 100644
--- a/server/controllers/article/add-topic.php
+++ b/server/controllers/article/add-topic.php
@@ -14,12 +14,11 @@ DataValidator::with('CustomValidations', true);
  * @apiPermission Staff level 2
  *
  * @apiParam {String} name Name of the new topic.
+ * @apiParam {String} icon Icon of the new topic.
+ * @apiParam {String} iconColor Icon's color of the new topic.
  *
- * @apiParam {string} icon Icon of the new topic.
- *
- * @apiParam {string} iconColor Icon's color of the new topic.
- *
- * @apiError {String} message
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_NAME
  *
  * @apiSuccess {Object} data
  *
diff --git a/server/controllers/article/add.php b/server/controllers/article/add.php
index 296e81c9..19439e11 100644
--- a/server/controllers/article/add.php
+++ b/server/controllers/article/add.php
@@ -14,14 +14,14 @@ DataValidator::with('CustomValidations', true);
  * @apiPermission Staff level 2
  *
  * @apiParam {String} title Title of the new article.
+ * @apiParam {String} content Content of the new article.
+ * @apiParam {Number} position Position of the new article.
+ * @apiParam {Number} topicId Id of the articles's topic.
  *
- * @apiParam {string} content Content of the new article.
- *
- * @apiParam {number} position Position of the new article.
- *
- * @apiParam {number} topicId Id of the articles's topic.
- *
- * @apiError {String} message
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_NAME
+ * @apiUse INVALID_CONTENT
+ * @apiUse INVALID_TOPIC
  *
  * @apiSuccess {Object} data
  *
diff --git a/server/controllers/article/delete-topic.php b/server/controllers/article/delete-topic.php
index a754980f..18bbe396 100644
--- a/server/controllers/article/delete-topic.php
+++ b/server/controllers/article/delete-topic.php
@@ -13,11 +13,12 @@ DataValidator::with('CustomValidations', true);
  *
  * @apiPermission Staff level 2
  *
- * @apiParam {number} topicId Id of the topic.
+ * @apiParam {Number} topicId Id of the topic.
  *
- * @apiError {String} message
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_TOPIC
  *
- * @apiSuccess {Object} data
+ * @apiSuccess {Object} data Empty object
  *
  */
 
diff --git a/server/controllers/article/delete.php b/server/controllers/article/delete.php
index bc418c31..49afe4e1 100644
--- a/server/controllers/article/delete.php
+++ b/server/controllers/article/delete.php
@@ -13,11 +13,12 @@ DataValidator::with('CustomValidations', true);
  *
  * @apiPermission Staff level 2
  *
- * @apiParam {number} articleId Id of the article.
+ * @apiParam {Number} articleId Id of the article.
  *
- * @apiError {String} message
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_TOPIC
  *
- * @apiSuccess {Object} data
+ * @apiSuccess {Object} data Empty object
  *
  */
 
diff --git a/server/controllers/article/edit-topic.php b/server/controllers/article/edit-topic.php
index 3e4f4b8b..32369ab6 100644
--- a/server/controllers/article/edit-topic.php
+++ b/server/controllers/article/edit-topic.php
@@ -13,17 +13,15 @@ DataValidator::with('CustomValidations', true);
  *
  * @apiPermission Staff level 2
  *
- * @apiParam {number} topicId Id of the topic.
- * 
+ * @apiParam {Number} topicId Id of the topic.
  * @apiParam {String} name The new name of the topic.
+ * @apiParam {String} icon The new icon of the topic.
+ * @apiParam {String} iconColor The new Icon's color of the topic.
  *
- * @apiParam {string} icon The new icon of the topic.
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_TOPIC
  *
- * @apiParam {string} iconColor The new Icon's color of the topic.
- *
- * @apiError {String} message
- *
- * @apiSuccess {Object} data
+ * @apiSuccess {Object} data Empty object
  *
  */
 
diff --git a/server/controllers/article/edit.php b/server/controllers/article/edit.php
index 7386916c..c33ca008 100644
--- a/server/controllers/article/edit.php
+++ b/server/controllers/article/edit.php
@@ -13,19 +13,16 @@ DataValidator::with('CustomValidations', true);
  *
  * @apiPermission Staff level 2
  *
- * @apiParam {number} articleId Id of the article.
+ * @apiParam {Number} articleId Id of the article.
+ * @apiParam {Number} topicId Id of the topic of the article.
+ * @apiParam {String} content The new content of the article.
+ * @apiParam {String} title The new title of the article.
+ * @apiParam {Number} position The new position of the article.
+ * 
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_TOPIC
  *
- * @apiParam {number} topicId Id of the topic of the article.
- * 
- * @apiParam {string} content The new content of the article.
- * 
- * @apiParam {string} title The new title of the article.
- * 
- * @apiParam {number} position The new position of the article.
- * 
- * @apiError {String} message
- *
- * @apiSuccess {Object} data
+ * @apiSuccess {Object} data Empty object
  *
  */
 
diff --git a/server/controllers/article/get-all.php b/server/controllers/article/get-all.php
index 2b3781a2..35e49357 100644
--- a/server/controllers/article/get-all.php
+++ b/server/controllers/article/get-all.php
@@ -3,16 +3,18 @@ use Respect\Validation\Validator as DataValidator;
 DataValidator::with('CustomValidations', true);
 
 /**
- * @api {post} /article/get-all Get all articles.
+ * @api {post} /article/get-all Retrieve all articles.
  *
  * @apiName Get all
  *
  * @apiGroup article
  *
- * @apiDescription This path give back all the articles.
+ * @apiDescription This path retrieves all the articles.
  *
- * @apiPermission any
+ * @apiPermission any or user
  *
+ * @apiUse NO_PERMISSION
+ * 
  * @apiSuccess {Object} data
  *
  */
diff --git a/server/controllers/staff/add.php b/server/controllers/staff/add.php
index 035a0167..cd809879 100644
--- a/server/controllers/staff/add.php
+++ b/server/controllers/staff/add.php
@@ -3,7 +3,7 @@ use Respect\Validation\Validator as DataValidator;
 DataValidator::with('CustomValidations', true);
 
 /**
- * @api {post} /staff/add  Add a new staff member.
+ * @api {post} /staff/add Add a new staff member.
  *
  * @apiName Add
  *
@@ -14,18 +14,18 @@ DataValidator::with('CustomValidations', true);
  * @apiPermission Staff level 3
  *
  * @apiParam {String} name The name of the new staff member.
- * 
  * @apiParam {String} email The email of the new staff member.
- * 
  * @apiParam {String} password The password of the new staff member.
- * 
- * @apiParam {number} level The level of the new staff member.
+ * @apiParam {Number} level The level of the new staff member.
+ * @apiParam {String} profilePic The profile pic of the new staff member.
+ * @apiParam {String} departments The departments that will have assigned the new staff member.
  *
- * @apiParam {string} profilePic The profile pic of the new staff member.
- *
- * @apiParam {string} departments The departments that will have assigned the new staff member.
- *
- * @apiError {String} message
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_NAME
+ * @apiUse INVALID_EMAIL
+ * @apiUse INVALID_PASSWORD
+ * @apiUse INVALID_LEVEL
+ * @apiUse ALREADY_A_STAFF
  *
  * @apiSuccess {Object} data
  *
diff --git a/server/controllers/staff/assign-ticket.php b/server/controllers/staff/assign-ticket.php
index d106ae4f..9a84e73e 100644
--- a/server/controllers/staff/assign-ticket.php
+++ b/server/controllers/staff/assign-ticket.php
@@ -13,11 +13,14 @@ DataValidator::with('CustomValidations', true);
  *
  * @apiPermission Staff level 1
  *
- * @apiParam {number} ticketNumber The number of the ticket to assign.
+ * @apiParam {Number} ticketNumber The number of the ticket to assign.
  *
- * @apiError {string} message
- *
- * @apiSuccess {Object} data
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_TICKET
+ * @apiUse TICKET_ALREADY_ASSIGNED
+ * @apiUse INVALID_DEPARTMENT
+ * 
+ * @apiSuccess {Object} data Empty object
  *
  */
 
diff --git a/server/controllers/staff/delete.php b/server/controllers/staff/delete.php
index b51cd3b7..cf9445fd 100644
--- a/server/controllers/staff/delete.php
+++ b/server/controllers/staff/delete.php
@@ -13,11 +13,12 @@ use RedBeanPHP\Facade as RedBean;
  *
  * @apiPermission Staff level 3
  *
- * @apiParam {number} staffId The id of the staff member.
+ * @apiParam {Number} staffId The id of the staff member.
  *
- * @apiError {String} message
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_STAFF
  *
- * @apiSuccess {Object} data
+ * @apiSuccess {Object} data Empty object
  *
  */
 
diff --git a/server/controllers/staff/edit.php b/server/controllers/staff/edit.php
index 44897e1a..fa476102 100644
--- a/server/controllers/staff/edit.php
+++ b/server/controllers/staff/edit.php
@@ -2,7 +2,7 @@
 use Respect\Validation\Validator as DataValidator;
 
 /**
- * @api {post} /staff/edit  Edit a staff member.
+ * @api {post} /staff/edit Edit a staff member.
  *
  * @apiName Edit
  *
@@ -12,19 +12,16 @@ use Respect\Validation\Validator as DataValidator;
  *
  * @apiPermission Staff level 1
  *
- * @apiParam {number} staffId Id of the staff.
- * 
+ * @apiParam {Number} staffId Id of the staff.
  * @apiParam {String} departments The name of the departments to change.
- * 
  * @apiParam {String} email The new email of the staff member.
- * 
  * @apiParam {String} password The new password of the staff member.
- * 
- * @apiParam {number} level The new level of the staff member.
+ * @apiParam {Number} level The new level of the staff member.
  *
- * @apiError {String} message
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_STAFF
  *
- * @apiSuccess {Object} data
+ * @apiSuccess {Object} data Empty object 
  *
  */
 
diff --git a/server/controllers/staff/get-all-tickets.php b/server/controllers/staff/get-all-tickets.php
index f649d26c..90956f21 100644
--- a/server/controllers/staff/get-all-tickets.php
+++ b/server/controllers/staff/get-all-tickets.php
@@ -2,19 +2,20 @@
 use Respect\Validation\Validator as DataValidator;
 
 /**
- * @api {post} /staff/get-all-tickets  Give back all tickets.
+ * @api {post} /staff/get-all-tickets Retrieve all tickets.
  *
  * @apiName Get all tickets
  *
  * @apiGroup staff
  *
- * @apiDescription This path give back all tickets created.
+ * @apiDescription This path retrieves all tickets created.
  *
  * @apiPermission Staff level 1
  *
- * @apiParam {number} page The page's number that it's looking for.
+ * @apiParam {Number} page The page's number that it's looking for.
  *
- * @apiError {String} message
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_PAGE
  *
  * @apiSuccess {Object} data
  *
diff --git a/server/controllers/staff/get-all.php b/server/controllers/staff/get-all.php
index 62b0fdb1..ce656906 100644
--- a/server/controllers/staff/get-all.php
+++ b/server/controllers/staff/get-all.php
@@ -2,15 +2,17 @@
 use Respect\Validation\Validator as DataValidator;
 
 /**
- * @api {post} /staff/get-all  Get information about all the staff members.
+ * @api {post} /staff/get-all  Retrieve information about all the staff members.
  *
  * @apiName Get all
  *
  * @apiGroup staff
  *
- * @apiDescription This path give back information about all the staff member.
+ * @apiDescription This path retrieves information about all the staff member.
  *
  * @apiPermission Staff level 3
+ * 
+ * @apiUse NO_PERMISSION
  *
  * @apiSuccess {Object} data
  *
diff --git a/server/controllers/staff/get-new-tickets.php b/server/controllers/staff/get-new-tickets.php
index b18242b6..e36ba3eb 100644
--- a/server/controllers/staff/get-new-tickets.php
+++ b/server/controllers/staff/get-new-tickets.php
@@ -3,16 +3,18 @@ use RedBeanPHP\Facade as RedBean;
 use Respect\Validation\Validator as DataValidator;
 
 /**
- * @api {post} /staff/get-new-tickets  Get new tickets.
+ * @api {post} /staff/get-new-tickets Retrieve new tickets.
  *
  * @apiName Get new tickets
  *
  * @apiGroup staff
  *
- * @apiDescription This path give back new tickets.
+ * @apiDescription This path retrieves new tickets.
  *
  * @apiPermission Staff level 1
  *
+ * @apiUse NO_PERMISSION
+ * 
  * @apiSuccess {Object} data
  *
  */
diff --git a/server/controllers/staff/get-tickets.php b/server/controllers/staff/get-tickets.php
index 940127f8..352bca6a 100644
--- a/server/controllers/staff/get-tickets.php
+++ b/server/controllers/staff/get-tickets.php
@@ -2,16 +2,18 @@
 use Respect\Validation\Validator as DataValidator;
 
 /**
- * @api {post} /staff/get-tickets  Get own tickets.
+ * @api {post} /staff/get-tickets Retrieve own tickets.
  *
  * @apiName Get tickets
  *
  * @apiGroup staff
  *
- * @apiDescription This path give back the tickets of current staff member.
+ * @apiDescription This path retrieves the tickets of current staff member.
  *
  * @apiPermission Staff level 1
  *
+ * @apiUse NO_PERMISSION
+ * 
  * @apiSuccess {Object} data
  *
  */
diff --git a/server/controllers/staff/get.php b/server/controllers/staff/get.php
index 2416488b..e42eee21 100644
--- a/server/controllers/staff/get.php
+++ b/server/controllers/staff/get.php
@@ -3,19 +3,19 @@ use Respect\Validation\Validator as DataValidator;
 DataValidator::with('CustomValidations', true);
 
 /**
- * @api {post} /staff/get  Get information about a staff member.
+ * @api {post} /staff/get  Retrieve information about a staff member.
  *
  * @apiName Get
  *
  * @apiGroup staff
  *
- * @apiDescription This path give back information about a staff member .
+ * @apiDescription This path retrieves information about a staff member .
  *
  * @apiPermission Staff level 1
  *
- * @apiParam {number} staffId The id of the staff member searched.
+ * @apiParam {Number} staffId The id of the staff member searched.
  * 
- * @apiError {String} message
+ * @apiUse NO_PERMISSION
  *
  * @apiSuccess {Object} data
  *
diff --git a/server/controllers/staff/last-events.php b/server/controllers/staff/last-events.php
index 59e089e1..6652b8b2 100644
--- a/server/controllers/staff/last-events.php
+++ b/server/controllers/staff/last-events.php
@@ -2,19 +2,20 @@
 use Respect\Validation\Validator as DataValidator;
 
 /**
- * @api {post} /staff/last-events  Give back the last events.
+ * @api {post} /staff/last-events Retrieve the last events.
  *
  * @apiName Last events
  *
  * @apiGroup staff
  *
- * @apiDescription This path give back the last events.
+ * @apiDescription This path retrieves the last events.
  *
  * @apiPermission Staff level 1
  *
- * @apiParam {number} page The page's number of the list.
+ * @apiParam {Number} page The page's number of the list.
  * 
- * @apiError {String} message
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_PAGE
  * 
  * @apiSuccess {Object} data
  *
diff --git a/server/controllers/staff/search-tickets.php b/server/controllers/staff/search-tickets.php
index 628e3f7f..c6c166df 100644
--- a/server/controllers/staff/search-tickets.php
+++ b/server/controllers/staff/search-tickets.php
@@ -2,7 +2,7 @@
 use Respect\Validation\Validator as DataValidator;
 
 /**
- * @api {post} /staff/search-tickets  Search some tickets.
+ * @api {post} /staff/search-tickets Search some tickets.
  *
  * @apiName Search tickets
  *
@@ -12,11 +12,12 @@ use Respect\Validation\Validator as DataValidator;
  *
  * @apiPermission Staff level 1
  *
- * @apiParam {String} query key to search.
+ * @apiParam {String} query Key to search.
+ * @apiParam {Number} page The number of page.
  *
- * @apiParam {number} page The number of page.
- *
- * @apiError {String} message
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_QUERY
+ * @apiUse INVALID_PAGE
  *
  * @apiSuccess {Object} data
  *
diff --git a/server/controllers/staff/un-assign-ticket.php b/server/controllers/staff/un-assign-ticket.php
index 8471cf27..cadc3cbd 100644
--- a/server/controllers/staff/un-assign-ticket.php
+++ b/server/controllers/staff/un-assign-ticket.php
@@ -3,7 +3,7 @@ use Respect\Validation\Validator as DataValidator;
 DataValidator::with('CustomValidations', true);
 
 /**
- * @api {post} /staff/un-assign-ticket  Un-assign a ticket.
+ * @api {post} /staff/un-assign-ticket Un-assign a ticket.
  *
  * @apiName Un-assign ticket
  *
@@ -13,11 +13,12 @@ DataValidator::with('CustomValidations', true);
  *
  * @apiPermission Staff level 1
  *
- * @apiParam {number} ticketNumber Ticket number to un-assign.
+ * @apiParam {Number} ticketNumber Ticket number to un-assign.
  *
- * @apiError {String} message
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_TICKET
  *
- * @apiSuccess {Object} data
+ * @apiSuccess {Object} data Empty object
  *
  */
 
diff --git a/server/controllers/system/add-api-key.php b/server/controllers/system/add-api-key.php
index c943aba4..26e2d966 100644
--- a/server/controllers/system/add-api-key.php
+++ b/server/controllers/system/add-api-key.php
@@ -12,9 +12,11 @@ use Respect\Validation\Validator as DataValidator;
  *
  * @apiPermission Staff level 3
  *
- * @apiParam {string} name Number of the new api-key.
+ * @apiParam {String} name Name of the new api-key.
  *
- * @apiError {String} message
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_NAME
+ * @apiUse NAME_ALREADY_USED
  *
  * @apiSuccess {Object} data
  *
diff --git a/server/controllers/system/add-department.php b/server/controllers/system/add-department.php
index aab91e6e..9bdfbaea 100644
--- a/server/controllers/system/add-department.php
+++ b/server/controllers/system/add-department.php
@@ -12,9 +12,10 @@ use Respect\Validation\Validator as DataValidator;
  *
  * @apiPermission Staff level 3
  *
- * @apiParam {string} name Number of the new department.
+ * @apiParam {String} name Name of the new department.
  *
- * @apiError {String} message
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_NAME
  *
  * @apiSuccess {Object} data
  *
diff --git a/server/controllers/system/backup-database.php b/server/controllers/system/backup-database.php
index 709e23f3..0e10a7e9 100644
--- a/server/controllers/system/backup-database.php
+++ b/server/controllers/system/backup-database.php
@@ -12,7 +12,7 @@ use Ifsnop\Mysqldump as IMysqldump;
  *
  * @apiPermission Staff level 3
  *
- * @apiSuccess {Object} data
+ * @apiUse NO_PERMISSION
  *
  */
 
diff --git a/server/controllers/system/check-requirements.php b/server/controllers/system/check-requirements.php
index 2de68b7c..6dcd587d 100644
--- a/server/controllers/system/check-requirements.php
+++ b/server/controllers/system/check-requirements.php
@@ -1,13 +1,13 @@
 <?php
 
 /**
- * @api {post} /system/check-requirements Checks and give back the current requirements.
+ * @api {post} /system/check-requirements Checks and retrieves the current requirements.
  *
  * @apiName Check requirements
  *
  * @apiGroup system
  *
- * @apiDescription This path checks and give back the current requirements.
+ * @apiDescription This path checks and retrieves the current requirements.
  *
  * @apiPermission any
  *
diff --git a/server/controllers/system/csv-import.php b/server/controllers/system/csv-import.php
index a6d68353..0c26a4cb 100644
--- a/server/controllers/system/csv-import.php
+++ b/server/controllers/system/csv-import.php
@@ -1,18 +1,20 @@
 <?php
 
 /**
- * @api {post} /system/csv-import Recieves a csv file with a list of users to signup .
+ * @api {post} /system/csv-import Receives a csv file with a list of users to signup .
  *
- * @apiName csv import
+ * @apiName CSV import
  *
  * @apiGroup system
  *
- * @apiDescription This path recieves a csv file with a list of users to signup.
+ * @apiDescription This path receives a csv file with a list of users to signup.
  *
  * @apiPermission Staff level 3
  *
- * @apiParam {string} file A csv file with this content format: email,password, name.
+ * @apiParam {String} file A csv file with this content format: email,password, name.
  *
+ * @apiUse NO_PERMISSION
+ * 
  * @apiSuccess {Object} data
  *
  */
diff --git a/server/controllers/system/delete-all-users.php b/server/controllers/system/delete-all-users.php
index f9e8510b..77497a7e 100644
--- a/server/controllers/system/delete-all-users.php
+++ b/server/controllers/system/delete-all-users.php
@@ -12,9 +12,12 @@ use RedBeanPHP\Facade as RedBean;
  *
  * @apiPermission Staff level 3
  *
- * @apiParam {string} password The password of the current staff.
+ * @apiParam {String} password The password of the current staff.
  *
- * @apiSuccess {Object} data
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_PASSWORD
+ * 
+ * @apiSuccess {Object} data Empty object
  *
  */
 
diff --git a/server/controllers/system/delete-api-key.php b/server/controllers/system/delete-api-key.php
index 6c4eaa71..eba96d18 100644
--- a/server/controllers/system/delete-api-key.php
+++ b/server/controllers/system/delete-api-key.php
@@ -12,11 +12,12 @@ use Respect\Validation\Validator as DataValidator;
  *
  * @apiPermission Staff level 3
  *
- * @apiParam {string} name Name of the api-key to delete.
+ * @apiParam {String} name Name of the api-key to delete.
  *
- * @apiError {String} message
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_NAME
  *
- * @apiSuccess {Object} data
+ * @apiSuccess {Object} data Empty object
  *
  */
 
diff --git a/server/controllers/system/delete-department.php b/server/controllers/system/delete-department.php
index c3ecb1ec..2a30fdf3 100644
--- a/server/controllers/system/delete-department.php
+++ b/server/controllers/system/delete-department.php
@@ -13,13 +13,14 @@ DataValidator::with('CustomValidations', true);
  *
  * @apiPermission Staff level 3
  *
- * @apiParam {number} departmentId Id of the department to delete.
+ * @apiParam {Number} departmentId Id of the department to delete.
+ * @apiParam {Number} transferDepartmentId Id of the department where the tickets will be transfer to.
  *
- * @apiParam {number} transferDepartmentId Id of the department where the tickets will be transfer to.
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_DEPARTMENT
+ * @apiUse SAME_DEPARTMENT
  *
- * @apiError {String} message
- *
- * @apiSuccess {Object} data
+ * @apiSuccess {Object} data Empty object
  *
  */
 
diff --git a/server/controllers/system/disable-registration.php b/server/controllers/system/disable-registration.php
index 598592a6..d192ed7c 100644
--- a/server/controllers/system/disable-registration.php
+++ b/server/controllers/system/disable-registration.php
@@ -11,11 +11,12 @@
  *
  * @apiPermission Staff level 3
  *
- * @apiParam {string} password The password of the current staff.
+ * @apiParam {String} password The password of the current staff.
  *
- * @apiError {String} message
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_PASSWORD
  *
- * @apiSuccess {Object} data
+ * @apiSuccess {Object} data Empty object
  *
  */
 
diff --git a/server/controllers/system/disable-user-system.php b/server/controllers/system/disable-user-system.php
index 8010ff79..71286148 100644
--- a/server/controllers/system/disable-user-system.php
+++ b/server/controllers/system/disable-user-system.php
@@ -11,11 +11,13 @@
  *
  * @apiPermission Staff level 3
  *
- * @apiParam {string} password The password of the current staff.
+ * @apiParam {String} password The password of the current staff.
  *
- * @apiError {String} message
- *
- * @apiSuccess {Object} data
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_PASSWORD
+ * @apiUse SYSTEM_USER_IS_ALREADY_DISABLED
+ * 
+ * @apiSuccess {Object} data Empty object 
  *
  */
 
diff --git a/server/controllers/system/edit-department.php b/server/controllers/system/edit-department.php
index 31369534..05e6669b 100644
--- a/server/controllers/system/edit-department.php
+++ b/server/controllers/system/edit-department.php
@@ -13,13 +13,15 @@ DataValidator::with('CustomValidations', true);
  *
  * @apiPermission Staff level 3
  *
- * @apiParam {string} name The new name of the department.
+ * @apiParam {String} name The new name of the department.
  *
- * @apiParam {number} departmentId The Id of the department.
+ * @apiParam {Number} departmentId The Id of the department.
  *
- * @apiError {String} message
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_NAME
+ * @apiUse INVALID_DEPARTMENT
  *
- * @apiSuccess {Object} data
+ * @apiSuccess {Object} data Empty object
  *
  */
 
diff --git a/server/controllers/system/edit-mail-template.php b/server/controllers/system/edit-mail-template.php
index 8525bcfb..26e2ef65 100644
--- a/server/controllers/system/edit-mail-template.php
+++ b/server/controllers/system/edit-mail-template.php
@@ -12,17 +12,18 @@ use Respect\Validation\Validator as DataValidator;
  *
  * @apiPermission Staff level 3
  *
- * @apiParam {string} templateType The new type of the template.
+ * @apiParam {String} templateType The new type of the template.
+ * @apiParam {String} language The new language of the template.
+ * @apiParam {String} subject The new subject of the template.
+ * @apiParam {String} body The new content of the template.
  *
- * @apiParam {string} language The new language of the template.
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_TEMPLATE
+ * @apiUse INVALID_LANGUAGE
+ * @apiUse INVALID_SUBJECT
+ * @apiUse INVALID_BODY
  *
- * @apiParam {string} subject The new subject of the template.
- *
- * @apiParam {string} body The new content of the template.
- *
- * @apiError {String} message
- *
- * @apiSuccess {Object} data
+ * @apiSuccess {Object} data Empty object 
  *
  */
 
diff --git a/server/controllers/system/edit-settings.php b/server/controllers/system/edit-settings.php
index 8378f5de..8513c6e5 100644
--- a/server/controllers/system/edit-settings.php
+++ b/server/controllers/system/edit-settings.php
@@ -11,15 +11,13 @@
  *
  * @apiPermission Staff level 3
  *
- * @apiParam {string} allowedLanguages The list of languages allowed.
+ * @apiParam {String} allowedLanguages The list of languages allowed.
+ * @apiParam {String} supportedLanguages The list of languages supported.
+ * @apiParam {String} settings A list this content format: language, recaptcha-public, recaptcha-private, no-reply-email, smtp-host, smtp-port, smtp-user, smtp-pass, time-zone, maintenance-mode, layout, allow-attachments, max-size, title, url.
  *
- * @apiParam {string} supportedLanguages The list of languages supported.
+ * @apiUse NO_PERMISSION
  *
- * @apiParam {string} settings A list this content format: language, recaptcha-public, recaptcha-private, no-reply-email, smtp-host, smtp-port, smtp-user, smtp-pass, time-zone, maintenance-mode, layout, allow-attachments, max-size, title, url.
- *
- * @apiError {String} message
- *
- * @apiSuccess {Object} data
+ * @apiSuccess {Object} data Empty object
  *
  */
 
diff --git a/server/controllers/system/enable-registration.php b/server/controllers/system/enable-registration.php
index 1ed11ce7..88e745d5 100644
--- a/server/controllers/system/enable-registration.php
+++ b/server/controllers/system/enable-registration.php
@@ -12,11 +12,12 @@ use Respect\Validation\Validator as DataValidator;
  *
  * @apiPermission Staff level 3
  *
- * @apiParam {string} password The password of the current staff.
+ * @apiParam {String} password The password of the current staff.
  *
- * @apiError {String} message
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_PASSWORD
  *
- * @apiSuccess {Object} data
+ * @apiSuccess {Object} data Empty object
  *
  */
 
diff --git a/server/controllers/system/enable-user-system.php b/server/controllers/system/enable-user-system.php
index 8930273c..e745c658 100644
--- a/server/controllers/system/enable-user-system.php
+++ b/server/controllers/system/enable-user-system.php
@@ -11,11 +11,13 @@
  *
  * @apiPermission Staff level 3
  *
- * @apiParam {string} password The password of the current staff.
+ * @apiParam {String} password The password of the current staff.
  *
- * @apiError {String} message
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_PASSWORD
+ * @apiUse SYSTEM_USER_IS_ALREADY_ENABLED
  *
- * @apiSuccess {Object} data
+ * @apiSuccess {Object} data Empty object
  *
  */
 
diff --git a/server/controllers/system/get-api-keys.php b/server/controllers/system/get-api-keys.php
index d8cce02d..c710055b 100644
--- a/server/controllers/system/get-api-keys.php
+++ b/server/controllers/system/get-api-keys.php
@@ -2,16 +2,18 @@
 use Respect\Validation\Validator as DataValidator;
 
 /**
- * @api {post} /system/get-api-keys Get api keys.
+ * @api {post} /system/get-api-keys Retrieve api keys.
  *
  * @apiName Get api keys
  *
  * @apiGroup system
  *
- * @apiDescription This path give back the all api keys.
+ * @apiDescription This path retrieves the all api keys.
  *
  * @apiPermission Staff level 3
  *
+ * @apiUse NO_PERMISSION
+ * 
  * @apiSuccess {Object} data
  *
  */
diff --git a/server/controllers/system/get-logs.php b/server/controllers/system/get-logs.php
index ad141541..4b769a39 100644
--- a/server/controllers/system/get-logs.php
+++ b/server/controllers/system/get-logs.php
@@ -2,19 +2,20 @@
 use Respect\Validation\Validator as DataValidator;
 
 /**
- * @api {post} /system/get-logs Get logs.
+ * @api {post} /system/get-logs retrieve logs.
  *
  * @apiName Get logs
  *
  * @apiGroup system
  *
- * @apiDescription This path give back the all logs.
+ * @apiDescription This path retrieves the all logs.
  *
  * @apiPermission Staff level 1
  *
- * @apiParam {number} page The page of logs.
+ * @apiParam {Number} page The page of logs.
  *
- * @apiError {String} message
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_PAGE
  *
  * @apiSuccess {Object} data
  *
diff --git a/server/controllers/system/get-mail-templates.php b/server/controllers/system/get-mail-templates.php
index b4028da0..56609777 100644
--- a/server/controllers/system/get-mail-templates.php
+++ b/server/controllers/system/get-mail-templates.php
@@ -2,16 +2,18 @@
 use Respect\Validation\Validator as DataValidator;
 
 /**
- * @api {post} /system/get-mail-templates Get mail templates.
+ * @api {post} /system/get-mail-templates Retrieve mail templates.
  *
  * @apiName Get mail templates
  *
  * @apiGroup system
  *
- * @apiDescription This path give back the all mail templates.
+ * @apiDescription This path retrieves the all mail templates.
  *
  * @apiPermission Staff level 3
  *
+ * @apiUse NO_PERMISSION
+ * 
  * @apiSuccess {Object} data
  *
  */
diff --git a/server/controllers/system/get-settings.php b/server/controllers/system/get-settings.php
index 7a2d4e07..66c53d8b 100644
--- a/server/controllers/system/get-settings.php
+++ b/server/controllers/system/get-settings.php
@@ -1,17 +1,17 @@
 <?php
 
 /**
- * @api {post} /system/get-settings Get settings.
+ * @api {post} /system/get-settings Retrieve settings.
  *
  * @apiName Get settings
  *
  * @apiGroup system
  *
- * @apiDescription This path returns one or more settings.
+ * @apiDescription This path retrieves one or more settings.
  *
  * @apiPermission any
  *
- * @apiParam {bool} allSettings A bool that means if you want a regular settings list or a complety settings list.
+ * @apiParam {Boolean} allSettings A bool that means if you want a regular settings list or a complety settings list.
  *
  * @apiSuccess {Object} data
  *
diff --git a/server/controllers/system/get-stats.php b/server/controllers/system/get-stats.php
index bda9372d..a27ce258 100644
--- a/server/controllers/system/get-stats.php
+++ b/server/controllers/system/get-stats.php
@@ -2,21 +2,21 @@
 use Respect\Validation\Validator as DataValidator;
 
 /**
- * @api {post} /system/get-stats Get stats.
+ * @api {post} /system/get-stats Retrieve stats.
  *
  * @apiName Get stats
  *
  * @apiGroup system
  *
- * @apiDescription This path give back stats.
+ * @apiDescription This path retrieves stats.
  *
  * @apiPermission Staff level 1
  *
  * @apiParam {String} period Period of search.
- * 
- * @apiParam {number} staffId Id of the current staff.
- *
- * @apiError {String} message
+ * @apiParam {Number} staffId Id of the current staff.
+
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_PERIOD
  *
  * @apiSuccess {Object} data
  *
diff --git a/server/controllers/system/init-admin.php b/server/controllers/system/init-admin.php
index 0d11a590..5e24be81 100644
--- a/server/controllers/system/init-admin.php
+++ b/server/controllers/system/init-admin.php
@@ -14,14 +14,15 @@ DataValidator::with('CustomValidations', true);
  * @apiPermission any
  *
  * @apiParam {String} name Name of the administrator.
+ * @apiParam {String} email Email of the administrator.
+ * @apiParam {String} password Password of the administrator.
  *
- * @apiParam {string} email Email of the administrator.
- * 
- * @apiParam {string} password Password of the administrator.
+ * @apiUse INVALID_NAME
+ * @apiUse INVALID_EMAIL
+ * @apiUse INVALID_PASSWORD
+ * @apiUse INIT_SETTINGS_DONE
  *
- * @apiError {String} message
- *
- * @apiSuccess {Object} data
+ * @apiSuccess {Object} data Empty object
  *
  */
 
diff --git a/server/controllers/system/recover-mail-template.php b/server/controllers/system/recover-mail-template.php
index 9663a33b..017a37ca 100644
--- a/server/controllers/system/recover-mail-template.php
+++ b/server/controllers/system/recover-mail-template.php
@@ -13,12 +13,13 @@ use Respect\Validation\Validator as DataValidator;
  * @apiPermission Staff level 3
  *
  * @apiParam {String} templateType type of the template.
+ * @apiParam {String} language language of the template.
  *
- * @apiParam {string} language language of the template.
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_TEMPLATE
+ * @apiUse INVALID_LANGUAGE
  *
- * @apiError {String} message
- *
- * @apiSuccess {Object} data
+ * @apiSuccess {Object} data Empty object
  *
  */
 
diff --git a/server/controllers/ticket/add-custom-response.php b/server/controllers/ticket/add-custom-response.php
index 37cb0199..7a7a2605 100644
--- a/server/controllers/ticket/add-custom-response.php
+++ b/server/controllers/ticket/add-custom-response.php
@@ -14,11 +14,10 @@ DataValidator::with('CustomValidations', true);
  * @apiPermission Staff Level 2
  *
  * @apiParam {String} name Name of the response.
- *
  * @apiParam {String} content Content of the response.
- *
  * @apiParam {String} language Language of the response.
  *
+ * @apiUse NO_PERMISSION
  * @apiUse INVALID_NAME
  * @apiUse INVALID_CONTENT
  * @apiUse INVALID_LANGUAGE
diff --git a/server/controllers/ticket/change-department.php b/server/controllers/ticket/change-department.php
index e7a1aa3f..5179bcbb 100644
--- a/server/controllers/ticket/change-department.php
+++ b/server/controllers/ticket/change-department.php
@@ -13,13 +13,14 @@ DataValidator::with('CustomValidations', true);
  *
  * @apiPermission Staff Level 1
  *
- * @apiParam {number} ticketNumber The number of a ticket.
+ * @apiParam {Number} ticketNumber The number of a ticket.
+ * @apiParam {Number} departmentId The id of the new department of the ticket.
  *
- * @apiParam {number} departmentId The id of the new department of the ticket.
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_TICKET
+ * @apiUse INVALID_DEPARTMENT
  *
- * @apiError {String} message
- *
- * @apiSuccess {Object} data
+ * @apiSuccess {Object} data Empty object
  *
  */
 
diff --git a/server/controllers/ticket/change-priority.php b/server/controllers/ticket/change-priority.php
index b3c3de98..c7cc6349 100644
--- a/server/controllers/ticket/change-priority.php
+++ b/server/controllers/ticket/change-priority.php
@@ -12,13 +12,14 @@ use Respect\Validation\Validator as DataValidator;
  *
  * @apiPermission Staff Level 1
  *
- * @apiParam {number} ticketNumber The number of a ticket.
+ * @apiParam {Number} ticketNumber The number of a ticket.
+ * @apiParam {String} priority The new priority of the ticket.
  *
- * @apiParam {string} priority The new priority of the ticket.
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_TICKET
+ * @apiUse INVALID_PRIORITY 
  *
- * @apiError {String} message
- *
- * @apiSuccess {Object} data
+ * @apiSuccess {Object} data Empty object 
  *
  */
 
diff --git a/server/controllers/ticket/check.php b/server/controllers/ticket/check.php
index f3940971..3d2af299 100644
--- a/server/controllers/ticket/check.php
+++ b/server/controllers/ticket/check.php
@@ -13,13 +13,14 @@ DataValidator::with('CustomValidations', true);
  *
  * @apiPermission any
  *
- * @apiParam {number} ticketNumber The number of a ticket.
+ * @apiParam {Number} ticketNumber The number of a ticket.
+ * @apiParam {String} email Email of the person who created the ticket.
+ * @apiParam {String} captcha Encrypted value generated by google captcha client.
  *
- * @apiParam {string} email Email of the person who created the ticket.
- *
- * @apiParam {string} captcha Encrypted value generated by google captcha client.
- *
- * @apiError {String} message
+ * @apiUse INVALID_TICKET
+ * @apiUse INVALID_EMAIL
+ * @apiUse INVALID_CAPTCHA 
+ * @apiUse NO_PERMISSION
  *
  * @apiSuccess {Object} data
  *
diff --git a/server/controllers/ticket/close.php b/server/controllers/ticket/close.php
index 5ab52476..6ac853d8 100644
--- a/server/controllers/ticket/close.php
+++ b/server/controllers/ticket/close.php
@@ -13,11 +13,12 @@ DataValidator::with('CustomValidations', true);
  *
  * @apiPermission user
  *
- * @apiParam {number} ticketNumber The number of a ticket.
+ * @apiParam {Number} ticketNumber The number of a ticket.
  *
- * @apiError {String} message
- *
- * @apiSuccess {Object} data
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_TICKET
+ * 
+ * @apiSuccess {Object} data Empty object
  *
  */
 
diff --git a/server/controllers/ticket/comment.php b/server/controllers/ticket/comment.php
index 0e097769..f536872d 100644
--- a/server/controllers/ticket/comment.php
+++ b/server/controllers/ticket/comment.php
@@ -13,15 +13,15 @@ DataValidator::with('CustomValidations', true);
  *
  * @apiPermission user
  *
- * @apiParam {string} content Content of the comment.
+ * @apiParam {String} content Content of the comment.
+ * @apiParam {Number} ticketNumber The number of the ticket to comment.
+ * @apiParam {String} csrf_token Token of the session.
  *
- * @apiParam {number} ticketNumber The number of the ticket to comment.
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_CONTENT
+ * @apiUse INVALID_TICKET
  *
- * @apiParam {string} csrf_token Token of the session.
- *
- * @apiError {String} message
- *
- * @apiSuccess {Object} data
+ * @apiSuccess {Object} data Empty object 
  *
  */
 
diff --git a/server/controllers/ticket/create.php b/server/controllers/ticket/create.php
index 37035e74..ab5fa3da 100644
--- a/server/controllers/ticket/create.php
+++ b/server/controllers/ticket/create.php
@@ -13,19 +13,19 @@ DataValidator::with('CustomValidations', true);
  *
  * @apiPermission user
  *
- * @apiParam {string} title Title of the ticket.
+ * @apiParam {String} title Title of the ticket.
+ * @apiParam {String} content Content of the ticket.
+ * @apiParam {Number} departmentId The id of the department of the current ticket.
+ * @apiParam {String} language The language of the ticket.
+ * @apiParam {String} email The email of the user who created the ticket.
+ * @apiParam {String} name The Name of the author of the ticket.
  *
- * @apiParam {string} content Content of the ticket.
- *
- * @apiParam {number} departmentId The id of the department of the current ticket.
- *
- * @apiParam {string} language The language of the ticket.
- *
- * @apiParam {string} email The email of the user who created the ticket.
- *
- * @apiParam {string} name The Name of the author of the ticket.
- *
- * @apiError {String} message
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_TITLE
+ * @apiUse INVALID_CONTENT
+ * @apiUse INVALID_DEPARTMENT
+ * @apiUse INVALID_LANGUAGE
+ * @apiUse INVALID_CAPTCHA
  *
  * @apiSuccess {Object} data
  *
diff --git a/server/controllers/ticket/delete-custom-response.php b/server/controllers/ticket/delete-custom-response.php
index baf496d6..94a4da24 100644
--- a/server/controllers/ticket/delete-custom-response.php
+++ b/server/controllers/ticket/delete-custom-response.php
@@ -13,11 +13,12 @@ DataValidator::with('CustomValidations', true);
  *
  * @apiPermission user
  *
- * @apiParam {number} id Id of the custom response to delete.
+ * @apiParam {Number} id Id of the custom response to delete.
  *
- * @apiError {String} message
- *
- * @apiSuccess {Object} data
+ * @apiUse NO_PERMISSION
+ * @apiUse NO_PERMISSION
+ * 
+ * @apiSuccess {Object} data Empty object
  *
  */
 
diff --git a/server/controllers/ticket/edit-custom-response.php b/server/controllers/ticket/edit-custom-response.php
index b94f1f97..8c5128f6 100644
--- a/server/controllers/ticket/edit-custom-response.php
+++ b/server/controllers/ticket/edit-custom-response.php
@@ -13,17 +13,15 @@ DataValidator::with('CustomValidations', true);
  *
  * @apiPermission Staff level 2
  *
- * @apiParam {number} id Id of the custom response to edit.
+ * @apiParam {Number} id Id of the custom response to edit.
+ * @apiParam {String} content The new content of the custom response.
+ * @apiParam {String} language The new language of the custom response.
+ * @apiParam {String} name The new name of the custom response.
  *
- * @apiParam {string} content The new content of the custom response.
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_NAME
  *
- * @apiParam {string} language The new language of the custom response.
- *
- * @apiParam {string} name The new name of the custom response.
- *
- * @apiError {String} message
- *
- * @apiSuccess {Object} data
+ * @apiSuccess {Object} data Empty object
  *
  */
 
diff --git a/server/controllers/ticket/get-custom-responses.php b/server/controllers/ticket/get-custom-responses.php
index 14cd8891..13e1b4b4 100644
--- a/server/controllers/ticket/get-custom-responses.php
+++ b/server/controllers/ticket/get-custom-responses.php
@@ -3,7 +3,7 @@ use Respect\Validation\Validator as DataValidator;
 DataValidator::with('CustomValidations', true);
 
 /**
- * @api {post} /ticket/get-custom-responses give back customs responses.
+ * @api {post} /ticket/get-custom-responses Retrieve customs responses.
  *
  * @apiName Get custom responses
  *
@@ -13,9 +13,10 @@ DataValidator::with('CustomValidations', true);
  *
  * @apiPermission Staff level 1
  *
+ * @apiUse NO_PERMISSION
+ * 
  * @apiSuccess {[CustomResponse](#api-Data_Structures-ObjectCustomresponse)[]} data List of custom responses.
  *
- * @apiUse NO_PERMISSION
  */
 
 class GetCustomResponsesController extends Controller {
diff --git a/server/controllers/ticket/get.php b/server/controllers/ticket/get.php
index f8562c13..c6bf17c9 100644
--- a/server/controllers/ticket/get.php
+++ b/server/controllers/ticket/get.php
@@ -8,18 +8,18 @@ DataValidator::with('CustomValidations', true);
  *
  * @apiGroup Ticket
  *
- * @apiDescription This path gives back information about a ticket.
+ * @apiDescription This path retrieves information about a ticket.
  *
  * @apiPermission any
  *
- * @apiParam {number} ticketNumber The number of the ticket.
+ * @apiParam {Number} ticketNumber The number of the ticket.
+ * @apiParam {String} csrf_token Token of the current session.
  *
- * @apiParam {string} csrf_token Token of the current session.
- *
- * @apiUse NO_PERMISSION
  * @apiUse INVALID_TICKET
- *
+ * @apiUse NO_PERMISSION
+ * 
  * @apiSuccess {[Ticket](#api-Data_Structures-ObjectTicket)} data Information about the requested ticket.
+ * 
  */
 
 
diff --git a/server/controllers/ticket/re-open.php b/server/controllers/ticket/re-open.php
index 547058cc..48ead6a9 100644
--- a/server/controllers/ticket/re-open.php
+++ b/server/controllers/ticket/re-open.php
@@ -12,11 +12,12 @@ use Respect\Validation\Validator as DataValidator;
  *
  * @apiPermission user
  *
- * @apiParam {string} ticketNumber Number of the ticket to be reopened.
+ * @apiParam {String} ticketNumber Number of the ticket to be reopened.
  *
- * @apiError {String} message
- *
- * @apiSuccess {Object} data
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_TICKET
+ * 
+ * @apiSuccess {Object} data Empty object
  *
  */
 
diff --git a/server/controllers/ticket/seen.php b/server/controllers/ticket/seen.php
index f64b81c1..220f2a62 100644
--- a/server/controllers/ticket/seen.php
+++ b/server/controllers/ticket/seen.php
@@ -12,9 +12,10 @@ use Respect\Validation\Validator as DataValidator;
  *
  * @apiPermission user
  *
- * @apiParam {string} ticketNumber Number of the ticket.
+ * @apiParam {String} ticketNumber Number of the ticket.
  *
- * @apiError {String} message
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_TICKET
  *
  * @apiSuccess {Object} data
  *
diff --git a/server/controllers/user/ban.php b/server/controllers/user/ban.php
index baa64fe4..5ee0deeb 100644
--- a/server/controllers/user/ban.php
+++ b/server/controllers/user/ban.php
@@ -14,7 +14,9 @@ use Respect\Validation\Validator as DataValidator;
  * 
  * @apiParam {String} email Email of user to ban.
  *
- * @apiError {String} message
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_EMAIL
+ * @apiUse ALREADY_BANNED
  *
  * @apiSuccess {Object} data
  *
diff --git a/server/controllers/user/check-session.php b/server/controllers/user/check-session.php
index 8f3c854d..66242f1f 100644
--- a/server/controllers/user/check-session.php
+++ b/server/controllers/user/check-session.php
@@ -3,7 +3,7 @@
 /**
  * @api {post} /user/check-session Check if session exist or not.
  *
- * @apiName check session
+ * @apiName Check session
  *
  * @apiGroup User
  *
@@ -11,8 +11,6 @@
  *
  * @apiPermission Any
  *
- * @apiError {String} message
- *
  * @apiSuccess {Object} data
  *
  */
diff --git a/server/controllers/user/delete.php b/server/controllers/user/delete.php
index a67ae0e1..402edf57 100644
--- a/server/controllers/user/delete.php
+++ b/server/controllers/user/delete.php
@@ -5,7 +5,7 @@ use RedBeanPHP\Facade as RedBean;
 /**
  * @api {post} /user/delete Delete a user.
  *
- * @apiName delete
+ * @apiName Delete
  *
  * @apiGroup User
  *
@@ -13,9 +13,11 @@ use RedBeanPHP\Facade as RedBean;
  *
  * @apiPermission Staff level 1
  *
- * @apiParam {number} userId The id of the user to delete.
+ * @apiParam {Number} userId The id of the user to delete.
  *
- * @apiError {String} message
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_USER
+ * @apiUse USER_SYSTEM_DISABLED
  *
  * @apiSuccess {Object} data
  *
diff --git a/server/controllers/user/edit-email.php b/server/controllers/user/edit-email.php
index 7cf6364c..d4f2b33d 100644
--- a/server/controllers/user/edit-email.php
+++ b/server/controllers/user/edit-email.php
@@ -4,7 +4,7 @@ use Respect\Validation\Validator as DataValidator;
 /**
  * @api {post} /user/edit-email Edit email of an user.
  *
- * @apiName edit-email
+ * @apiName Edit-email
  *
  * @apiGroup User
  *
@@ -12,11 +12,12 @@ use Respect\Validation\Validator as DataValidator;
  *
  * @apiPermission User
  *
- * @apiParam {string} newEmail The new email that the user wants to change.
+ * @apiParam {String} newEmail The new email that the user wants to change.
  *
- * @apiError {String} message
- *
- * @apiSuccess {Object} data
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_EMAIL
+ * 
+ * @apiSuccess {Object} data Empty object
  *
  */
 
diff --git a/server/controllers/user/edit-password.php b/server/controllers/user/edit-password.php
index d6fc3da0..037cd726 100644
--- a/server/controllers/user/edit-password.php
+++ b/server/controllers/user/edit-password.php
@@ -4,7 +4,7 @@ use Respect\Validation\Validator as DataValidator;
 /**
  * @api {post} /user/edit-password Edit password of an user.
  *
- * @apiName edit-password
+ * @apiName Edit-password
  *
  * @apiGroup User
  *
@@ -12,13 +12,14 @@ use Respect\Validation\Validator as DataValidator;
  *
  * @apiPermission User
  *
- * @apiParam {string} newPassword The new password that the user wants to change.
+ * @apiParam {String} newPassword The new password that the user wants to change.
+ * @apiParam {String} oldPassword The actual password of the user.
  *
- * @apiParam {string} oldPassword The actual password of the user.
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_PASSWORD
+ * @apiUse INVALID_OLD_PASSWORD
  *
- * @apiError {String} message
- *
- * @apiSuccess {Object} data
+ * @apiSuccess {Object} data Empty object
  *
  */
 
diff --git a/server/controllers/user/get-user.php b/server/controllers/user/get-user.php
index d59d22ee..bfedf8cb 100644
--- a/server/controllers/user/get-user.php
+++ b/server/controllers/user/get-user.php
@@ -3,19 +3,21 @@ use Respect\Validation\Validator as DataValidator;
 DataValidator::with('CustomValidations', true);
 
 /**
- * @api {post} /user/get-user Give back the information of an specific user.
+ * @api {post} /user/get-user Retrieve the information of an specific user.
  *
- * @apiName get-user
+ * @apiName Get-user
  *
  * @apiGroup User
  *
- * @apiDescription This path give back information about an specific user.
+ * @apiDescription This path retrieves information about an specific user.
  *
  * @apiPermission Staff level 1
  *
- * @apiParam {string} userId The id of the user to find information of.
+ * @apiParam {String} userId The id of the user to find information of.
  *
- * @apiError {String} message
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_USER
+ * @apiUse USER_SYSTEM_DISABLED
  *
  * @apiSuccess {Object} data
  *
diff --git a/server/controllers/user/get-users.php b/server/controllers/user/get-users.php
index 85a523d3..d8bca578 100644
--- a/server/controllers/user/get-users.php
+++ b/server/controllers/user/get-users.php
@@ -2,25 +2,25 @@
 use Respect\Validation\Validator as DataValidator;
 
 /**
- * @api {post} /user/get-users Give back the information of a list of users.
+ * @api {post} /user/get-users Retrieve the information of a list of users.
  *
- * @apiName get-users
+ * @apiName Get-users
  *
  * @apiGroup User
  *
- * @apiDescription This path give back information about a list of users.
+ * @apiDescription This path retrieves information about a list of users.
  *
  * @apiPermission Staff level 1
  *
- * @apiParam {number} page Number of pages of users.
+ * @apiParam {Number} page Number of pages of users.
+ * @apiParam {String} orderBy Parameter to order the users by tickets or id.
+ * @apiParam {Boolean} desc  Parameter to order the user ascending or descending way.
+ * @apiParam {String} search Key to find some specific users.
  *
- * @apiParam {string} orderBy Parameter to order the users by tickets or id.
- *
- * @apiParam {bool} desc  Parameter to order the user ascending or descending way.
- *
- * @apiParam {string} search Key to find some specific users.
- *
- * @apiError {String} message
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_PAGE
+ * @apiUse INVALID_ORDER
+ * @apiUse USER_SYSTEM_DISABLED
  *
  * @apiSuccess {Object} data
  *
diff --git a/server/controllers/user/get.php b/server/controllers/user/get.php
index aa9207b7..adb69cd3 100644
--- a/server/controllers/user/get.php
+++ b/server/controllers/user/get.php
@@ -3,17 +3,18 @@ use Respect\Validation\Validator as DataValidator;
 DataValidator::with('CustomValidations', true);
 
 /**
- * @api {post} /user/get Give back the information of yourself.
+ * @api {post} /user/get Retrieve the information of yourself.
  *
- * @apiName get
+ * @apiName Get
  *
  * @apiGroup User
  *
- * @apiDescription This path give back the information of a user.
+ * @apiDescription This path retrieve the information of a user.
  *
  * @apiPermission User
  *
- * @apiError {String} message
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_CREDENTIALS
  *
  * @apiSuccess {Object} data
  *
diff --git a/server/controllers/user/list-ban.php b/server/controllers/user/list-ban.php
index c411d590..1a0d2e81 100644
--- a/server/controllers/user/list-ban.php
+++ b/server/controllers/user/list-ban.php
@@ -2,16 +2,18 @@
 use Respect\Validation\Validator as DataValidator;
 
 /**
- * @api {post} /user/list-ban Give back the list of banned users.
+ * @api {post} /user/list-ban Retrieve the list of banned users.
  *
- * @apiName list-ban
+ * @apiName List-ban
  *
  * @apiGroup User
  *
- * @apiDescription This path give back the list of banned users.
+ * @apiDescription This path retrieves the list of banned users.
  *
  * @apiPermission Staff level 1
  *
+ * @apiUse NO_PERMISSION
+ * 
  * @apiSuccess {Object} data
  *
  */
diff --git a/server/controllers/user/login.php b/server/controllers/user/login.php
index 90b90969..3e5ddcbd 100644
--- a/server/controllers/user/login.php
+++ b/server/controllers/user/login.php
@@ -3,7 +3,7 @@
 /**
  * @api {post} /user/login Login a user.
  *
- * @apiName login
+ * @apiName Login
  *
  * @apiGroup User
  *
@@ -11,19 +11,17 @@
  *
  * @apiPermission Any
  *
- * @apiParam {bool} staff A bool that say if it want to login a staff or a normal user.
+ * @apiParam {Boolean} staff A bool that say if it want to login a staff or a normal user.
+ * @apiParam {String} email The email of the user to login.
+ * @apiParam {String} password The password of the user to login.
+ * @apiParam {Boolean} remember A bool that say if the session wants to be remembered.
+ * @apiParam {Number} userId The id of the user to login.
+ * @apiParam {String} rememberToken Token to login automatically.
  *
- * @apiParam {string} email The email of the user to login.
- *
- * @apiParam {string} password The password of the user to login.
- *
- * @apiParam {bool} remember A bool that say if the session wants to be remembered.
- *
- * @apiParam {number} userId The id of the user to login.
- *
- * @apiParam {string} rememberToken Token to login automatically.
- *
- * @apiError {String} message
+ * @apiUse USER_SYSTEM_DISABLED
+ * @apiUse SESSION_EXISTS
+ * @apiUse UNVERIFIED_USER
+ * @apiUse INVALID_CREDENTIALS
  *
  * @apiSuccess {Object} data
  *
diff --git a/server/controllers/user/logout.php b/server/controllers/user/logout.php
index 4df555e4..d549d33f 100644
--- a/server/controllers/user/logout.php
+++ b/server/controllers/user/logout.php
@@ -2,7 +2,7 @@
 /**
  * @api {post} /user/logout Log out the current user.
  *
- * @apiName log out 
+ * @apiName Log out 
  *
  * @apiGroup User
  *
@@ -10,7 +10,7 @@
  *
  * @apiPermission Any
  *
- * @apiSuccess {Object} data
+ * @apiSuccess {Object} data Empty object
  *
  */
 class LogoutController extends Controller {
diff --git a/server/controllers/user/recover-password.php b/server/controllers/user/recover-password.php
index bdd02081..74dfdb6d 100644
--- a/server/controllers/user/recover-password.php
+++ b/server/controllers/user/recover-password.php
@@ -5,7 +5,7 @@ DataValidator::with('CustomValidations', true);
 /**
  * @api {post} /user/recover-password Change the password of the user using a token sended from the email.
  *
- * @apiName recover password
+ * @apiName Recover password
  *
  * @apiGroup User
  *
@@ -13,15 +13,16 @@ DataValidator::with('CustomValidations', true);
  *
  * @apiPermission Any
  *
- * @apiParam {string} email  The email of the user who forgot the password.
+ * @apiParam {String} email  The email of the user who forgot the password.
+ * @apiParam {String} password The new password of the user.
+ * @apiParam {String} token  The token that was sended to the email of the user.
  *
- * @apiParam {string} password The new password of the user.
+ * @apiUse INVALID_EMAIL
+ * @apiUse INVALID_PASSWORD
+ * @apiUse USER_SYSTEM_DISABLED
+ * @apiUse NO_PERMISSION
  *
- * @apiParam {string} token  The token that was sended to the email of the user.
- *
- * @apiError {String} message
- *
- * @apiSuccess {Object} data
+ * @apiSuccess {Object} data Empty object
  *
  */
 
diff --git a/server/controllers/user/send-recover-password.php b/server/controllers/user/send-recover-password.php
index a9ba7d24..82e75f20 100644
--- a/server/controllers/user/send-recover-password.php
+++ b/server/controllers/user/send-recover-password.php
@@ -3,9 +3,9 @@ use Respect\Validation\Validator as DataValidator;
 DataValidator::with('CustomValidations', true);
 
 /**
- * @api {post} /user/send-recover-password send a token to the email of the user to change his password
+ * @api {post} /user/send-recover-password Send a token to the email of the user to change his password
  *
- * @apiName send recover password
+ * @apiName Send recover password
  *
  * @apiGroup User
  *
@@ -13,11 +13,13 @@ DataValidator::with('CustomValidations', true);
  *
  * @apiPermission Any
  *
- * @apiParam {string} email  The email of the user who forgot the password.
+ * @apiParam {String} email  The email of the user who forgot the password.
  *
- * @apiError {String} message
+ * @apiUse INVALID_EMAIL
+ * @apiUse USER_SYSTEM_DISABLED
+ * @apiUse INVALID_EMAIL
  *
- * @apiSuccess {Object} data
+ * @apiSuccess {Object} data Empty object.
  *
  */
 
diff --git a/server/controllers/user/signup.php b/server/controllers/user/signup.php
index f150147d..110d4405 100644
--- a/server/controllers/user/signup.php
+++ b/server/controllers/user/signup.php
@@ -4,9 +4,9 @@ use Respect\Validation\Validator as DataValidator;
 DataValidator::with('CustomValidations', true);
 
 /**
- * @api {post} /user/signup Sign up a new user
+ * @api {post} /user/signup Sign up a new user.
  *
- * @apiName sign up
+ * @apiName Sign up
  *
  * @apiGroup User
  *
@@ -14,15 +14,19 @@ DataValidator::with('CustomValidations', true);
  *
  * @apiPermission Any
  *
- * @apiParam {string} name  The name of the new user.
+ * @apiParam {String} name  The name of the new user.
+ * @apiParam {String} email  The email of the new user.
+ * @apiParam {String} password  The password of the new user.
+ * @apiParam {String} apyKey  Key to sign up  a user if the user system is disabled.
  *
- * @apiParam {string} email  The email of the new user.
- *
- * @apiParam {string} password  The password of the new user.
- *
- * @apiParam {string} apyKey  Key to sign up  a user if the user system is disabled.
- *
- * @apiError {String} message
+ * @apiUse INVALID_NAME
+ * @apiUse INVALID_EMAIL
+ * @apiUse INVALID_PASSWORD
+ * @apiUse INVALID_CAPTCHA
+ * @apiUse USER_SYSTEM_DISABLED
+ * @apiUse USER_EXISTS
+ * @apiUse ALREADY_BANNED
+ * @apiUse NO_PERMISSION
  *
  * @apiSuccess {Object} data
  *
diff --git a/server/controllers/user/un-ban.php b/server/controllers/user/un-ban.php
index c877668e..e0f20edb 100644
--- a/server/controllers/user/un-ban.php
+++ b/server/controllers/user/un-ban.php
@@ -4,7 +4,7 @@ use Respect\Validation\Validator as DataValidator;
 /**
  * @api {post} /user/un-ban Take a user out of banned list.
  *
- * @apiName un ban
+ * @apiName Un ban
  *
  * @apiGroup User
  *
@@ -12,11 +12,12 @@ use Respect\Validation\Validator as DataValidator;
  *
  * @apiPermission Staff level 1
  *
- * @apiParam {string} email  The email of the user who was banned.
+ * @apiParam {String} email  The email of the user who was banned.
  *
- * @apiError {String} message
+ * @apiUse NO_PERMISSION
+ * @apiUse INVALID_EMAIL
  *
- * @apiSuccess {Object} data
+ * @apiSuccess {Object} data Empty object
  *
  */
 
diff --git a/server/controllers/user/verify.php b/server/controllers/user/verify.php
index ea489d02..689282ca 100644
--- a/server/controllers/user/verify.php
+++ b/server/controllers/user/verify.php
@@ -4,7 +4,7 @@ use Respect\Validation\Validator as DataValidator;
 /**
  * @api {post} /user/verify Verify the email of a new user.
  *
- * @apiName verify
+ * @apiName Verify
  *
  * @apiGroup User
  *
@@ -12,11 +12,12 @@ use Respect\Validation\Validator as DataValidator;
  *
  * @apiPermission any
  *
- * @apiParam {string} email  The email of the user.
+ * @apiParam {String} email  The email of the user.
+ * @apiParam {String} token The key of validation the user.
  *
- * @apiParam {string} token The key of validation the user.
- *
- * @apiError {String} message
+ * @apiUse INVALID_EMAIL
+ * @apiUse USER_SYSTEM_DISABLED
+ * @apiUse INVALID_TOKEN
  *
  * @apiSuccess {Object} data
  *
diff --git a/server/models/Topic.php b/server/models/Topic.php
index 0d361b07..0fb76eba 100644
--- a/server/models/Topic.php
+++ b/server/models/Topic.php
@@ -1,4 +1,13 @@
 <?php
+/**
+ * @api {OBJECT} Topic Topic
+ * @apiGroup Data Structures
+ * @apiParam {Number} id Id of the topic.
+ * @apiParam {String} name Name of the topic.
+ * @apiParam {String} icon Icon of the topic.
+ * @apiParam {String} iconColor Icon's color of the topic.
+ * @apiParam {Object} articles Articles of the Topic.
+ */
 
 class Topic extends DataStore {
     const TABLE = 'topic';