diff --git a/DB/Configuration/event_config.json b/DB/Configuration/event_config.json
deleted file mode 100644
index a2a3342e..00000000
--- a/DB/Configuration/event_config.json
+++ /dev/null
@@ -1,45 +0,0 @@
-{
-    "funcs": {
-        "create_db_instance": {
-            "category": "creation",
-            "resource_type": "DBInstance",
-            "message": "db instance created"
-        },
-        "delete_db_instance": {
-            "category": "deletion",
-            "resource_type": "DBInstance",
-            "message": "db instance deleted"
-        },
-        "stop_db_instance": {
-            "category": "deletion",
-            "resource_type": "DBInstance",
-            "message": "DB instance shutdown"
-        },
-        "start_db_instance": {
-            "category": "deletion",
-            "resource_type": "DBInstance",
-            "message": "DB instance restarted"
-        },
-
-        "create_db_snapshot":{
-            "category": "creation",
-            "resource_type": "DBSnapshot",
-            "message": "db snapshot created"
-        },
-        "delete_db_snapshot":{
-            "category": "creation",
-            "resource_type": "DBSnapshot",
-            "message": "db snapshot deleted"
-
-        },
-        "restore_db_instance_from_snapshot":{
-            "category": "restoring",
-            "resource_type": "DBSnapshot",
-            "message": "db instance restored from snapshot"
-
-        }
-    },
-    "errs": {
-
-    }
-}
\ No newline at end of file
diff --git a/DB/configuration/event_config.json b/DB/configuration/event_config.json
deleted file mode 100644
index a2a3342e..00000000
--- a/DB/configuration/event_config.json
+++ /dev/null
@@ -1,45 +0,0 @@
-{
-    "funcs": {
-        "create_db_instance": {
-            "category": "creation",
-            "resource_type": "DBInstance",
-            "message": "db instance created"
-        },
-        "delete_db_instance": {
-            "category": "deletion",
-            "resource_type": "DBInstance",
-            "message": "db instance deleted"
-        },
-        "stop_db_instance": {
-            "category": "deletion",
-            "resource_type": "DBInstance",
-            "message": "DB instance shutdown"
-        },
-        "start_db_instance": {
-            "category": "deletion",
-            "resource_type": "DBInstance",
-            "message": "DB instance restarted"
-        },
-
-        "create_db_snapshot":{
-            "category": "creation",
-            "resource_type": "DBSnapshot",
-            "message": "db snapshot created"
-        },
-        "delete_db_snapshot":{
-            "category": "creation",
-            "resource_type": "DBSnapshot",
-            "message": "db snapshot deleted"
-
-        },
-        "restore_db_instance_from_snapshot":{
-            "category": "restoring",
-            "resource_type": "DBSnapshot",
-            "message": "db instance restored from snapshot"
-
-        }
-    },
-    "errs": {
-
-    }
-}
\ No newline at end of file
diff --git a/DB_UserAdministration/Controllers/permissionController.py b/DB_UserAdministration/Controllers/permissionController.py
index 2d5aac7f..010a2a46 100644
--- a/DB_UserAdministration/Controllers/permissionController.py
+++ b/DB_UserAdministration/Controllers/permissionController.py
@@ -10,6 +10,9 @@ def create_permission(self, action:Action, resource: Resource, effect:Effect):
     def delete_permission(self, permission_id: int):
         return self.service.delete_permission(permission_id)
     
+    def update_permission(self):
+        return self.service.update_permission()
+    
     def list_permissions(self):
         return self.service.list_permissions()
 
diff --git a/DB_UserAdministration/DataAccess/permissionManager.py b/DB_UserAdministration/DataAccess/permissionManager.py
index 09508719..554f4fbd 100644
--- a/DB_UserAdministration/DataAccess/permissionManager.py
+++ b/DB_UserAdministration/DataAccess/permissionManager.py
@@ -1,4 +1,5 @@
 import sqlite3  
+from permissionModel import Action, Resource, Effect
 # from DataAccess import DBManager  
 
 class PermissionManager:
@@ -68,6 +69,10 @@ def delete_permission(self, permission_id):
         """
         criteria = f'object_id = {permission_id}'
         return self.db_manager.delete(self.table_name, criteria) 
+    
+    def update_permission(self,permission_id: int, action: Action = None, resource: Resource = None, effect: Effect = None):
+        criteria = f'object_id = {permission_id}' 
+        return self.db_manager.update(self.table_name, criteria)
 
     def list_permissions(self):
         """
diff --git a/DB_UserAdministration/Services/permissionService.py b/DB_UserAdministration/Services/permissionService.py
index 14c59dc1..377f019f 100644
--- a/DB_UserAdministration/Services/permissionService.py
+++ b/DB_UserAdministration/Services/permissionService.py
@@ -51,6 +51,7 @@ def delete_permission(self, permission_id: int):
         :return: The result of the deletion operation from the DAL.
         """
         return self.dal.delete_permission(permission_id)
+    
 
     def list_permissions(self):
         """
@@ -60,7 +61,7 @@ def list_permissions(self):
         """
         return self.dal.list_permissions()
 
-    def update_permission(self, permission_id: int, action: Action, resource: Resource):
+    def update_permission(self, permission_id: int, action: Action, resource: Resource, effect: Effect):
         """
         Update an existing permission's action and resource based on its ID.