diff --git a/comm_op/__init__.py b/comm_op/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/comm_op/admin.py b/comm_op/admin.py
new file mode 100644
index 0000000..8c38f3f
--- /dev/null
+++ b/comm_op/admin.py
@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.
diff --git a/comm_op/apps.py b/comm_op/apps.py
new file mode 100644
index 0000000..288f5ed
--- /dev/null
+++ b/comm_op/apps.py
@@ -0,0 +1,6 @@
+from django.apps import AppConfig
+
+
+class CommOpConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'comm_op'
diff --git a/comm_op/models.py b/comm_op/models.py
new file mode 100644
index 0000000..5e8504b
--- /dev/null
+++ b/comm_op/models.py
@@ -0,0 +1,14 @@
+from django.db import models
+
+# Create your models here.
+class cr_Category(models.Model):
+    sName = models.CharField("Désignation", max_length=250)
+    dtUpdated = models.DateTimeField('date updated', auto_now=True)
+    dtCreated = models.DateTimeField('date published', auto_now_add=True)
+
+    def __str__(self):
+        return self.sName
+
+    class Meta:
+        verbose_name = "catégorie"
+        verbose_name_plural = "catégories"
\ No newline at end of file
diff --git a/comm_op/tests.py b/comm_op/tests.py
new file mode 100644
index 0000000..7ce503c
--- /dev/null
+++ b/comm_op/tests.py
@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.
diff --git a/comm_op/views.py b/comm_op/views.py
new file mode 100644
index 0000000..91ea44a
--- /dev/null
+++ b/comm_op/views.py
@@ -0,0 +1,3 @@
+from django.shortcuts import render
+
+# Create your views here.