diff --git a/Models/AccountRelationMapper.php b/Models/AccountRelationMapper.php
index c7ffc2a..6a94117 100644
--- a/Models/AccountRelationMapper.php
+++ b/Models/AccountRelationMapper.php
@@ -49,7 +49,7 @@ final class AccountRelationMapper extends DataMapperAbstract
     protected static array $ownsOne = [
         'relation' => [
             'mapper' => AccountMapper::class,
-            'src'    => 'task_account_account',
+            'self'   => 'task_account_account',
         ],
     ];
 
diff --git a/Models/GroupRelationMapper.php b/Models/GroupRelationMapper.php
index ecda632..590746e 100644
--- a/Models/GroupRelationMapper.php
+++ b/Models/GroupRelationMapper.php
@@ -49,7 +49,7 @@ final class GroupRelationMapper extends DataMapperAbstract
     protected static array $ownsOne = [
         'relation' => [
             'mapper' => GroupMapper::class,
-            'src'    => 'task_group_group',
+            'self'   => 'task_group_group',
         ],
     ];
 
diff --git a/Models/TaskElementMapper.php b/Models/TaskElementMapper.php
index b29281e..0b27289 100644
--- a/Models/TaskElementMapper.php
+++ b/Models/TaskElementMapper.php
@@ -56,20 +56,20 @@ final class TaskElementMapper extends DataMapperAbstract
         'media' => [
             'mapper' => MediaMapper::class,
             'table'  => 'task_element_media',
-            'dst'    => 'task_element_media_src',
-            'src'    => 'task_element_media_dst',
+            'external' => 'task_element_media_src',
+            'self'   => 'task_element_media_dst',
         ],
         'accRelation'          => [
             'mapper' => AccountRelationMapper::class,
             'table'  => 'task_account',
-            'dst'    => 'task_account_task_element',
-            'src'    => null,
+            'external' => 'task_account_task_element',
+            'self'   => null,
         ],
         'grpRelation'          => [
             'mapper' => GroupRelationMapper::class,
             'table'  => 'task_group',
-            'dst'    => 'task_group_task_element',
-            'src'    => null,
+            'external' => 'task_group_task_element',
+            'self'   => null,
         ],
     ];
 
@@ -82,7 +82,7 @@ final class TaskElementMapper extends DataMapperAbstract
     protected static array $belongsTo = [
         'createdBy' => [
             'mapper' => AccountMapper::class,
-            'src'    => 'task_element_created_by',
+            'self'   => 'task_element_created_by',
         ],
     ];
 
diff --git a/Models/TaskMapper.php b/Models/TaskMapper.php
index a145a1d..ff82871 100644
--- a/Models/TaskMapper.php
+++ b/Models/TaskMapper.php
@@ -62,22 +62,22 @@ final class TaskMapper extends DataMapperAbstract
      */
     protected static array $hasMany = [
         'taskElements' => [
-            'mapper' => TaskElementMapper::class,
-            'table'  => 'task_element',
-            'dst'    => 'task_element_task',
-            'src'    => null,
+            'mapper'   => TaskElementMapper::class,
+            'table'    => 'task_element',
+            'external' => 'task_element_task',
+            'self'     => null,
         ],
         'media'        => [
-            'mapper' => MediaMapper::class,
-            'table'  => 'task_media',
-            'dst'    => 'task_media_src',
-            'src'    => 'task_media_dst',
+            'mapper'   => MediaMapper::class,
+            'table'    => 'task_media',
+            'external' => 'task_media_src',
+            'self'     => 'task_media_dst',
         ],
-        'tags'        => [
-            'mapper' => MediaMapper::class,
-            'table'  => 'task_tag',
-            'dst'    => 'task_tag_src',
-            'src'    => 'task_tag_dst',
+        'tags'         => [
+            'mapper'   => MediaMapper::class,
+            'table'    => 'task_tag',
+            'external' => 'task_tag_src',
+            'self'     => 'task_tag_dst',
         ],
     ];
 
@@ -90,7 +90,7 @@ final class TaskMapper extends DataMapperAbstract
     protected static array $belongsTo = [
         'createdBy' => [
             'mapper' => AccountMapper::class,
-            'src'    => 'task_created_by',
+            'self'   => 'task_created_by',
         ],
     ];
 
@@ -103,7 +103,7 @@ final class TaskMapper extends DataMapperAbstract
     protected static array $ownsOne = [
         'schedule' => [
             'mapper' => ScheduleMapper::class,
-            'src'    => 'task_schedule',
+            'self'   => 'task_schedule',
         ],
     ];