diff --git a/django/didgeridoo/webshop/forms.py b/django/didgeridoo/webshop/forms.py
index 4e8080e..0a3b273 100644
--- a/django/didgeridoo/webshop/forms.py
+++ b/django/didgeridoo/webshop/forms.py
@@ -58,4 +58,3 @@ class AddToCartForm(forms.Form):
         label='Amount in piece.',
         help_text="Enter a Value between 1 and 99.",
         initial=1)
-    print("in AddToCartForm() printing")
diff --git a/django/didgeridoo/webshop/models.py b/django/didgeridoo/webshop/models.py
index a17e7dc..e06a461 100644
--- a/django/didgeridoo/webshop/models.py
+++ b/django/didgeridoo/webshop/models.py
@@ -22,7 +22,6 @@ class ArticleStatus(models.Model):
         return self.name
 
 
-# Create your models here.
 class Category(models.Model):
     name = models.CharField(max_length=200, unique=True)
     parent_category = models.ForeignKey('self', null=True, blank=True)
@@ -50,6 +49,7 @@ class Article(models.Model):
 
 
 class OrderStatus(models.Model):
+    """ Warehouse Items have Status like ordered or out of Stock """
     name = models.CharField(max_length=200, unique=True)
 
     def __str__(self):
@@ -57,6 +57,7 @@ class OrderStatus(models.Model):
 
 
 class OrderOfGoods(models.Model):
+    """ Warehouse operations """
     article = models.ForeignKey(Article)
     amount = models.FloatField(max_length=5)
     delivery_date = models.DateField()
@@ -68,6 +69,7 @@ class OrderOfGoods(models.Model):
 
 
 class Picture(models.Model):
+    """ Pictures in relationship to Articles """
     name = models.CharField(max_length=200)
     article = models.ForeignKey(Article)
     image = models.ImageField(upload_to="images")
@@ -77,13 +79,15 @@ class Picture(models.Model):
 
 
 class Order(models.Model):
+    """ Submitted Orders """
     user = models.ForeignKey(User, on_delete=models.CASCADE)
-    article = models.ManyToManyField(Article, through='OrderPosition')
+    # article = models.ManyToManyField(Article, through='OrderPosition')
     status = models.ForeignKey(OrderStatus)
     date = models.DateTimeField(default=timezone.now)
 
 
 class OrderPosition(models.Model):
+    """ Items in Submitted Orders"""
     article = models.ForeignKey(Article, on_delete=models.CASCADE)
     order = models.ForeignKey(Order, on_delete=models.CASCADE)
     amount = models.FloatField(max_length=5)
@@ -94,6 +98,7 @@ class OrderPosition(models.Model):
 
 
 class ShoppingCart(models.Model):
+    """ Cart to User Relationships """
     name = models.CharField(max_length=200)
     user = models.ForeignKey(User, on_delete=models.CASCADE)
     article = models.ManyToManyField(Article)
@@ -102,6 +107,13 @@ class ShoppingCart(models.Model):
         return self.name
 
 
+class CartPosition(models.Model):
+    """ Items in Cart """
+    article = models.ForeignKey(Article, on_delete=models.CASCADE)
+    amount = models.FloatField(max_length=5)
+    cart = models.ForeignKey(ShoppingCart)
+
+
 class City(models.Model):
     name = models.CharField(max_length=200)
     zip_code = models.PositiveSmallIntegerField()
diff --git a/docs/diagrammes/180102_erd.dia b/docs/diagrammes/180102_erd.dia
new file mode 100644
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diff --git a/docs/diagrammes/180102_erd.png b/docs/diagrammes/180102_erd.png
new file mode 100644
index 0000000..b8193aa
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