diff --git a/modules/purchase_trade/docs/business-rules.md b/modules/purchase_trade/docs/business-rules.md
index aae36ba..6520797 100644
--- a/modules/purchase_trade/docs/business-rules.md
+++ b/modules/purchase_trade/docs/business-rules.md
@@ -710,7 +710,7 @@ Owner technique: `a completer`
     `sale_date`.
   - Si le filtre `Side` vaut `All`, une ligne est conservee si son
     `purchase_date` ou son `sale_date` entre dans les bornes.
-  - Le filtre `Book` du rapport cible une valeur de dimension analytique
+  - Le filtre `Dimension` du rapport cible une valeur de dimension analytique
     rattachee au contrat achat ou vente via `analytic.dimension.assignment`.
   - Le filtre `Strategy` cible les strategies MTM rattachees aux lignes achat
     ou vente (`purchase.strategy` / `sale.strategy`).
diff --git a/modules/purchase_trade/lot.py b/modules/purchase_trade/lot.py
index 46ce27b..97a6df5 100755
--- a/modules/purchase_trade/lot.py
+++ b/modules/purchase_trade/lot.py
@@ -1223,7 +1223,7 @@ class LotQt(
             state=None, qttype=None, supplier=None, client=None, ps=None,
             lot_status=None, group=None, product=None, location=None,
             origin=None, finished=False, shipping_status=None, asof=None,
-            todate=None, book=None, strategy=None):
+            todate=None, dimension=None, strategy=None):
         pool = Pool()
         LotQt = pool.get('lot.qt')
         lqt = LotQt.__table__()
@@ -1289,20 +1289,21 @@ class LotQt(
                 return sale_clause
             return purchase_clause | sale_clause
 
-        def book_filter(purchase_id, sale_id):
-            if not book:
+        def dimension_filter(purchase_id, sale_id):
+            if not dimension:
                 return None
-            purchase_book = Exists(ada.select(
+            purchase_dimension = Exists(ada.select(
                 ada.id,
-                where=((ada.purchase == purchase_id) & (ada.value == book))))
-            sale_book = Exists(ada.select(
+                where=((ada.purchase == purchase_id)
+                    & (ada.value == dimension))))
+            sale_dimension = Exists(ada.select(
                 ada.id,
-                where=((ada.sale == sale_id) & (ada.value == book))))
+                where=((ada.sale == sale_id) & (ada.value == dimension))))
             if ps == 'P':
-                return purchase_book
+                return purchase_dimension
             elif ps == 'S':
-                return sale_book
-            return purchase_book | sale_book
+                return sale_dimension
+            return purchase_dimension | sale_dimension
         
         wh = ((lqt.lot_quantity > 0) & ((lp.lot_type == 'virtual') | (ls.lot_type == 'virtual')))
 
@@ -1330,9 +1331,9 @@ class LotQt(
         date_clause = date_filter(pu.purchase_date, sa.sale_date)
         if date_clause is not None:
             wh &= date_clause
-        book_clause = book_filter(pu.id, sa.id)
-        if book_clause is not None:
-            wh &= book_clause
+        dimension_clause = dimension_filter(pu.id, sa.id)
+        if dimension_clause is not None:
+            wh &= dimension_clause
         if strategy:
             purchase_strategy = Exists(pstr.select(
                 pstr.id,
@@ -1468,9 +1469,9 @@ class LotQt(
         date_clause = date_filter(pu.purchase_date, sa.sale_date)
         if date_clause is not None:
             wh2 &= date_clause
-        book_clause = book_filter(pu.id, sa.id)
-        if book_clause is not None:
-            wh2 &= book_clause
+        dimension_clause = dimension_filter(pu.id, sa.id)
+        if dimension_clause is not None:
+            wh2 &= dimension_clause
         if strategy:
             purchase_strategy = Exists(pstr.select(
                 pstr.id,
@@ -2017,7 +2018,7 @@ class LotReport(
         shipping_status = context.get('shipping_status')
         asof = context.get('asof')
         todate = context.get('todate')
-        book = context.get('book')
+        dimension = context.get('dimension')
         strategy = context.get('strategy')
         finished = context.get('finished')
         query = LotQT.getQuery(
@@ -2038,7 +2039,7 @@ class LotReport(
             shipping_status=shipping_status,
             asof=asof,
             todate=todate,
-            book=book,
+            dimension=dimension,
             strategy=strategy)
         return query
 
@@ -2090,7 +2091,7 @@ class LotContext(ModelView):
     client = fields.Many2One('party.party', "Client")
     sale =  fields.Many2One('sale.sale', "Sale")
     shipment =  fields.Many2One('stock.shipment.in', "Shipment")
-    book = fields.Many2One('analytic.dimension.value', "Book")
+    dimension = fields.Many2One('analytic.dimension.value', "Dimension")
     strategy = fields.Many2One('mtm.strategy', "Strategy")
     product = fields.Many2One('product.product',"Product")
     location = fields.Many2One('stock.location',"Location")
@@ -2149,19 +2150,7 @@ class LotContext(ModelView):
     def default_finished(cls):
         return False
     
-    @classmethod
-    def default_asof(cls):
-        pool = Pool()
-        Date = pool.get('ir.date')
-        return Date.today().replace(day=1,month=1,year=1999)
-
-    @classmethod
-    def default_todate(cls):
-        pool = Pool()
-        Date = pool.get('ir.date')
-        return Date.today()
-    
-    @classmethod
+    @classmethod
     def default_type(cls):
         return 'all'
 
@@ -2198,7 +2187,7 @@ class LotContext(ModelView):
         fields_names = fields_names.copy() if fields_names is not None else []
         for field_name in [
                 'purchase', 'sale', 'shipment', 'supplier', 'client',
-                'book', 'strategy', 'product', 'location', 'type',
+                'dimension', 'strategy', 'product', 'location', 'type',
                 'shipping_status', 'ps', 'state', 'wh', 'mode', 'group',
                 'origin', 'finished', 'asof', 'todate']:
             if field_name not in fields_names:
diff --git a/modules/purchase_trade/view/lot_report_context_form.xml b/modules/purchase_trade/view/lot_report_context_form.xml
index 805d5ce..0ec0c39 100755
--- a/modules/purchase_trade/view/lot_report_context_form.xml
+++ b/modules/purchase_trade/view/lot_report_context_form.xml
@@ -9,8 +9,8 @@
    <field name="sale"/>
    <label name="shipment"/>
    <field name="shipment"/>
-   <label name="book"/>
-   <field name="book"/>
+   <label name="dimension"/>
+   <field name="dimension"/>
    <label name="strategy"/>
    <field name="strategy"/>
    <label name="supplier"/>