diff --git a/src/dabdatasync/__init__.py b/src/dabdatasync/__init__.py
index 4217956..d003fb9 100644
--- a/src/dabdatasync/__init__.py
+++ b/src/dabdatasync/__init__.py
@@ -11,4 +11,4 @@ Main module __init__ file.
 """
 
 from .__metadata__ import __version__, __Summuary__, __Name__
-from .test_module import test_function
+from .datasync import I_DataSync, DataSync_Factory
diff --git a/src/dabdatasync/datasync.py b/src/dabdatasync/datasync.py
new file mode 100644
index 0000000..5317925
--- /dev/null
+++ b/src/dabdatasync/datasync.py
@@ -0,0 +1,92 @@
+import json
+from abc import ABC, abstractmethod
+from typing import final
+from typing import Self, Any, Set
+
+
+class I_DataSync(ABC):
+    manifest_path: str = "/opt/pyDABFactoryAppliance/Manifest.json"
+
+    @classmethod
+    @final
+    def get_manifest_data(cls) -> dict[Any, Any]:
+        with open(cls.manifest_path) as f_DAB_manifest:
+            return json.load(f_DAB_manifest)
+
+    @classmethod
+    @final
+    def try_get_instance(cls, manifest) -> Self | None:
+        if cls.test_applicable(manifest):
+            return cls(manifest)
+        return None
+
+    def __init__(self, manifest: dict[Any, Any]) -> None:
+        self.manifest: dict[Any, Any] = manifest
+
+    @classmethod
+    def test_applicable(cls, manifest: dict[Any, Any]) -> bool:
+        return False
+
+    @abstractmethod
+    def configure(self) -> None:
+        pass
+
+    @abstractmethod
+    def connect(self) -> None:
+        pass
+
+    @abstractmethod
+    def read_data(self) -> None:
+        pass
+
+    @abstractmethod
+    def write_data(self) -> None:
+        pass
+
+
+class DataSync_Factory:
+    ar_cls_DataSync: Set[I_DataSync] = set()
+
+    @classmethod
+    def register_C_DataSync(cls, cls_DataSync):
+        cls.ar_cls_DataSync.add(cls_DataSync)
+
+    @classmethod
+    def get_DataSync(cls) -> I_DataSync | None:
+        manifest = I_DataSync.get_manifest_data()
+        for cls_DataSync in cls.ar_cls_DataSync:
+            if res := cls_DataSync.try_get_instance(manifest):
+                res.configure()
+                return res
+        return None
+
+    @classmethod
+    def register(cls, _cls):
+        cls.register_C_DataSync(_cls)
+        return _cls
+
+
+@DataSync_Factory.register
+class C_DataSync_NextCloud(I_DataSync):
+    @classmethod
+    def test_applicable(cls, manifest) -> bool:
+        if "NextCloudSync" in manifest["Args"]:
+            if manifest["Args"]["NextCloudSync"]["value"] is True:
+                print("Nextcloud Sync found")
+                return True
+            return False
+        else:
+            raise RuntimeError("Wrong manifest format")
+        return True
+
+    def configure(self):
+        print("Nextcloud configure")
+
+    def connect(self):
+        pass
+
+    def read_data(self):
+        pass
+
+    def write_data(self):
+        pass
diff --git a/src/dabdatasync/test_module.py b/src/dabdatasync/test_module.py
deleted file mode 100644
index b8e3d10..0000000
--- a/src/dabdatasync/test_module.py
+++ /dev/null
@@ -1,43 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
-# dabdatasync (c) by chacha
-#
-# dabdatasync  is licensed under a
-# Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International Unported License.
-#
-# You should have received a copy of the license along with this
-# work.  If not, see <https://creativecommons.org/licenses/by-nc-sa/4.0/>.
-
-"""Phasellus tellus lectus, volutpat eu dapibus ut, suscipit vel augue.
-
-Tips:
-    Aliquam non leo vel libero sagittis viverra. Quisque lobortis nunc sit amet augue euismod laoreet.
-Note:
-    Maecenas volutpat porttitor pretium. Aliquam suscipit quis nisi non imperdiet.
-Note:
-    Vivamus et efficitur lorem, eget imperdiet tortor. Integer vel interdum sem.
-"""
-
-from __future__ import annotations
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:  # Only imports the below statements during type checking
-    pass
-
-def test_function(testvar: int) -> int:
-    """ A test function that return testvar+1 and print "Hello world !"
-
-    Proin eget sapien eget ipsum efficitur mollis nec ac nibh.
-
-    Note:
-        Morbi id lectus maximus, condimentum nunc eget, porta felis. In tristique velit tortor.
-
-    Args:
-        testvar: any integer
-
-    Returns:
-        testvar+1
-    """
-    print("Hello world !")
-    return testvar+1
diff --git a/test/test_test_module.py b/test/test_datasync.py
similarity index 59%
rename from test/test_test_module.py
rename to test/test_datasync.py
index f69bfd8..b41a584 100644
--- a/test/test_test_module.py
+++ b/test/test_datasync.py
@@ -8,8 +8,8 @@
 
 import unittest
 from os import chdir
-from io import StringIO 
-from contextlib import redirect_stdout,redirect_stderr
+from io import StringIO
+from contextlib import redirect_stdout, redirect_stderr
 from pathlib import Path
 
 print(__name__)
@@ -20,16 +20,13 @@ from src import dabdatasync
 testdir_path = Path(__file__).parent.resolve()
 chdir(testdir_path.parent.resolve())
 
+
 class Testtest_module(unittest.TestCase):
     def setUp(self) -> None:
         chdir(testdir_path.parent.resolve())
-        
+
     def test_version(self):
-        self.assertNotEqual(dabdatasync.__version__,"?.?.?")
+        self.assertNotEqual(dabdatasync.__version__, "?.?.?")
 
     def test_test_module(self):
-        
-        with redirect_stdout(StringIO()) as capted_stdout, redirect_stderr(StringIO()) as capted_stderr:
-            self.assertEqual(dabdatasync.test_function(41),42)
-            self.assertEqual(len(capted_stderr.getvalue()),0)
-            self.assertEqual(capted_stdout.getvalue().strip(),"Hello world !")
\ No newline at end of file
+        pass