diff --git a/modules/purchase_trade/__init__.py b/modules/purchase_trade/__init__.py
index 44dac07..73fe546 100755
--- a/modules/purchase_trade/__init__.py
+++ b/modules/purchase_trade/__init__.py
@@ -168,6 +168,7 @@ def register():
         purchase.DocTypeTemplate,
         purchase.PurchaseStrategy,
         purchase.PriceComposition,
+        purchase.QualityAnalysis,
         backtoback.Backtoback,
         dimension.AnalyticDimension,
         dimension.AnalyticDimensionValue,
diff --git a/modules/purchase_trade/purchase.py b/modules/purchase_trade/purchase.py
index f8848b0..7a2f4f5 100755
--- a/modules/purchase_trade/purchase.py
+++ b/modules/purchase_trade/purchase.py
@@ -528,6 +528,44 @@ class PriceComposition(ModelSQL,ModelView):
     line = fields.Many2One('purchase.line',"Purchase line")
     component = fields.Char("Component")
     price = fields.Numeric("Price")
+    
+class QualityAnalysis(ModelSQL,ModelView):
+    __name__ = 'quality.analysis'
+
+    line = fields.Many2One('purchase.line',"Purchase Line")
+    reference = fields.Char("Reference")
+    date = fields.Date("Analysis date")
+    attributes = fields.Dict(
+        'product.attribute', 'Attributes',
+        domain=[
+            ('sets', '=', Eval('attribute_set')),
+        ],
+        states={
+            'readonly': ~Eval('attribute_set'),
+        },
+        depends=['product', 'attribute_set'],
+        help="Add attributes to the variant."
+    )
+
+    product = fields.Function(
+        fields.Many2One('product.product', "Product"),
+        'on_change_with_product'
+    )
+
+    attribute_set = fields.Function(
+        fields.Many2One('product.attribute.set', "Attribute Set"),
+        'on_change_with_attribute_set'
+    )
+
+    @fields.depends('product')
+    def on_change_with_attribute_set(self, name=None):
+        if self.product  and self.product.template and self.product.template.attribute_set:
+            return self.product.template.attribute_set.id
+        
+    @fields.depends('line')
+    def on_change_with_product(self, name=None):
+        if self.line:
+            return self.line.product
 
 class Line(metaclass=PoolMeta):
     __name__ = 'purchase.line'
@@ -624,6 +662,8 @@ class Line(metaclass=PoolMeta):
 
     finished = fields.Boolean("Mark as finished")
 
+    quality_analysis = fields.One2Many('quality.analysis','line',"Quality analysis")
+
     @classmethod
     def default_finished(cls):
         return False
diff --git a/modules/purchase_trade/purchase.xml b/modules/purchase_trade/purchase.xml
index bd2e24c..29d5cee 100755
--- a/modules/purchase_trade/purchase.xml
+++ b/modules/purchase_trade/purchase.xml
@@ -162,6 +162,12 @@ this repository contains the full copyright notices and license terms. -->
             <field name="name">price_composition_tree</field>
         </record>
 
+        <record model="ir.ui.view" id="quality_analysis_view_tree">
+            <field name="model">quality.analysis</field>
+            <field name="type">tree</field>
+            <field name="name">quality_analysis_tree</field>
+        </record>
+
         <menuitem
             name="Pnl Report"
 	        parent="purchase_trade.menu_global_reporting"
diff --git a/modules/purchase_trade/view/quality_analysis_tree.xml b/modules/purchase_trade/view/quality_analysis_tree.xml
new file mode 100644
index 0000000..8901679
--- /dev/null
+++ b/modules/purchase_trade/view/quality_analysis_tree.xml
@@ -0,0 +1,5 @@
+<tree editable="1">
+    <field name="reference"/>
+    <field name="date"/>
+    <field name="attributes"/>
+</tree>
\ No newline at end of file