diff --git a/controllers/operation_ctrl.php b/controllers/operation_ctrl.php
new file mode 100644
index 0000000..e69de29
diff --git a/index.php b/index.php
index a89fbc0..9dafbca 100644
--- a/index.php
+++ b/index.php
@@ -66,9 +66,14 @@
             break;
 
         case 'operations':
-            require('views/operations_view.php');
+            require('controllers/operation_ctrl.php');
+            operations_form_ctrl();
             break;
 
+        case 'add_operation':
+            require('controllers/operation_ctrl.php');
+            add_operation_write_ctrl();
+            break;
         default:
             require('views/404_view.php');
             break;
diff --git a/models/operation_crud.php b/models/operation_crud.php
new file mode 100644
index 0000000..e69de29