diff --git a/bt5/erp5_simulation_core/DocumentTemplateItem/InvoiceTransactionRule.py b/bt5/erp5_simulation/DocumentTemplateItem/InvoiceTransactionRule.py
similarity index 100%
rename from bt5/erp5_simulation_core/DocumentTemplateItem/InvoiceTransactionRule.py
rename to bt5/erp5_simulation/DocumentTemplateItem/InvoiceTransactionRule.py
diff --git a/bt5/erp5_simulation_core/DocumentTemplateItem/InvoicingRule.py b/bt5/erp5_simulation/DocumentTemplateItem/InvoicingRule.py
similarity index 100%
rename from bt5/erp5_simulation_core/DocumentTemplateItem/InvoicingRule.py
rename to bt5/erp5_simulation/DocumentTemplateItem/InvoicingRule.py
diff --git a/bt5/erp5_simulation_core/DocumentTemplateItem/OrderRule.py b/bt5/erp5_simulation/DocumentTemplateItem/OrderRule.py
similarity index 100%
rename from bt5/erp5_simulation_core/DocumentTemplateItem/OrderRule.py
rename to bt5/erp5_simulation/DocumentTemplateItem/OrderRule.py
diff --git a/bt5/erp5_simulation/bt/template_document_id_list b/bt5/erp5_simulation/bt/template_document_id_list
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..31df3b657aec40dba73b06c9a86c79e59949b18d 100644
--- a/bt5/erp5_simulation/bt/template_document_id_list
+++ b/bt5/erp5_simulation/bt/template_document_id_list
@@ -0,0 +1,3 @@
+InvoiceTransactionRule
+InvoicingRule
+OrderRule
\ No newline at end of file
diff --git a/bt5/erp5_simulation_core/bt/categories_list b/bt5/erp5_simulation_core/bt/categories_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/change_log b/bt5/erp5_simulation_core/bt/change_log
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/comment b/bt5/erp5_simulation_core/bt/comment
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/copyright_list b/bt5/erp5_simulation_core/bt/copyright_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/dependency_list b/bt5/erp5_simulation_core/bt/dependency_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/description b/bt5/erp5_simulation_core/bt/description
deleted file mode 100644
index c8e96ad67b4fe790c24ee3280d88a40d2a1810b1..0000000000000000000000000000000000000000
--- a/bt5/erp5_simulation_core/bt/description
+++ /dev/null
@@ -1 +0,0 @@
-This business template contains python files that overrides existing files. Once TemplateTool supports installing documents whose class file exists in the same business template, all contents here should be merged into erp5_simulation business template.
\ No newline at end of file
diff --git a/bt5/erp5_simulation_core/bt/license b/bt5/erp5_simulation_core/bt/license
deleted file mode 100644
index 3a3e12bcad97e4b3bdd6a8bb499fd23a4bcb0819..0000000000000000000000000000000000000000
--- a/bt5/erp5_simulation_core/bt/license
+++ /dev/null
@@ -1 +0,0 @@
-GPL
\ No newline at end of file
diff --git a/bt5/erp5_simulation_core/bt/maintainer_list b/bt5/erp5_simulation_core/bt/maintainer_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/provision_list b/bt5/erp5_simulation_core/bt/provision_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/publication_url b/bt5/erp5_simulation_core/bt/publication_url
deleted file mode 100644
index 4af18322e32f3dd19579c80e26e4a306ad11e049..0000000000000000000000000000000000000000
--- a/bt5/erp5_simulation_core/bt/publication_url
+++ /dev/null
@@ -1 +0,0 @@
-None
\ No newline at end of file
diff --git a/bt5/erp5_simulation_core/bt/revision b/bt5/erp5_simulation_core/bt/revision
deleted file mode 100644
index 56a6051ca2b02b04ef92d5150c9ef600403cb1de..0000000000000000000000000000000000000000
--- a/bt5/erp5_simulation_core/bt/revision
+++ /dev/null
@@ -1 +0,0 @@
-1
\ No newline at end of file
diff --git a/bt5/erp5_simulation_core/bt/short_title b/bt5/erp5_simulation_core/bt/short_title
deleted file mode 100644
index 4af18322e32f3dd19579c80e26e4a306ad11e049..0000000000000000000000000000000000000000
--- a/bt5/erp5_simulation_core/bt/short_title
+++ /dev/null
@@ -1 +0,0 @@
-None
\ No newline at end of file
diff --git a/bt5/erp5_simulation_core/bt/template_action_path_list b/bt5/erp5_simulation_core/bt/template_action_path_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_base_category_list b/bt5/erp5_simulation_core/bt/template_base_category_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_catalog_datetime_key_list b/bt5/erp5_simulation_core/bt/template_catalog_datetime_key_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_catalog_full_text_key_list b/bt5/erp5_simulation_core/bt/template_catalog_full_text_key_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_catalog_keyword_key_list b/bt5/erp5_simulation_core/bt/template_catalog_keyword_key_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_catalog_local_role_key_list b/bt5/erp5_simulation_core/bt/template_catalog_local_role_key_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_catalog_method_id_list b/bt5/erp5_simulation_core/bt/template_catalog_method_id_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_catalog_multivalue_key_list b/bt5/erp5_simulation_core/bt/template_catalog_multivalue_key_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_catalog_related_key_list b/bt5/erp5_simulation_core/bt/template_catalog_related_key_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_catalog_request_key_list b/bt5/erp5_simulation_core/bt/template_catalog_request_key_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_catalog_result_key_list b/bt5/erp5_simulation_core/bt/template_catalog_result_key_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_catalog_result_table_list b/bt5/erp5_simulation_core/bt/template_catalog_result_table_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_catalog_role_key_list b/bt5/erp5_simulation_core/bt/template_catalog_role_key_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_catalog_scriptable_key_list b/bt5/erp5_simulation_core/bt/template_catalog_scriptable_key_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_catalog_topic_key_list b/bt5/erp5_simulation_core/bt/template_catalog_topic_key_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_constraint_id_list b/bt5/erp5_simulation_core/bt/template_constraint_id_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_document_id_list b/bt5/erp5_simulation_core/bt/template_document_id_list
deleted file mode 100644
index cde830507165e14cae74d3f6f6a43cc295340a9f..0000000000000000000000000000000000000000
--- a/bt5/erp5_simulation_core/bt/template_document_id_list
+++ /dev/null
@@ -1,2 +0,0 @@
-InvoicingRule
-OrderRule
\ No newline at end of file
diff --git a/bt5/erp5_simulation_core/bt/template_extension_id_list b/bt5/erp5_simulation_core/bt/template_extension_id_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_format_version b/bt5/erp5_simulation_core/bt/template_format_version
deleted file mode 100644
index 56a6051ca2b02b04ef92d5150c9ef600403cb1de..0000000000000000000000000000000000000000
--- a/bt5/erp5_simulation_core/bt/template_format_version
+++ /dev/null
@@ -1 +0,0 @@
-1
\ No newline at end of file
diff --git a/bt5/erp5_simulation_core/bt/template_local_role_list b/bt5/erp5_simulation_core/bt/template_local_role_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_local_roles_list b/bt5/erp5_simulation_core/bt/template_local_roles_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_message_translation_list b/bt5/erp5_simulation_core/bt/template_message_translation_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_module_id_list b/bt5/erp5_simulation_core/bt/template_module_id_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_path_list b/bt5/erp5_simulation_core/bt/template_path_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_portal_type_allowed_content_type_list b/bt5/erp5_simulation_core/bt/template_portal_type_allowed_content_type_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_portal_type_base_category_list b/bt5/erp5_simulation_core/bt/template_portal_type_base_category_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_portal_type_hidden_content_type_list b/bt5/erp5_simulation_core/bt/template_portal_type_hidden_content_type_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_portal_type_id_list b/bt5/erp5_simulation_core/bt/template_portal_type_id_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_portal_type_property_sheet_list b/bt5/erp5_simulation_core/bt/template_portal_type_property_sheet_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_portal_type_role_list b/bt5/erp5_simulation_core/bt/template_portal_type_role_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_portal_type_roles_list b/bt5/erp5_simulation_core/bt/template_portal_type_roles_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_portal_type_workflow_chain_list b/bt5/erp5_simulation_core/bt/template_portal_type_workflow_chain_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_preference_list b/bt5/erp5_simulation_core/bt/template_preference_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_product_id_list b/bt5/erp5_simulation_core/bt/template_product_id_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_property_sheet_id_list b/bt5/erp5_simulation_core/bt/template_property_sheet_id_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_registered_skin_selection_list b/bt5/erp5_simulation_core/bt/template_registered_skin_selection_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_role_list b/bt5/erp5_simulation_core/bt/template_role_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_site_property_id_list b/bt5/erp5_simulation_core/bt/template_site_property_id_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_skin_id_list b/bt5/erp5_simulation_core/bt/template_skin_id_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_test_id_list b/bt5/erp5_simulation_core/bt/template_test_id_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_tool_id_list b/bt5/erp5_simulation_core/bt/template_tool_id_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/template_update_business_template_workflow b/bt5/erp5_simulation_core/bt/template_update_business_template_workflow
deleted file mode 100644
index c227083464fb9af8955c90d2924774ee50abb547..0000000000000000000000000000000000000000
--- a/bt5/erp5_simulation_core/bt/template_update_business_template_workflow
+++ /dev/null
@@ -1 +0,0 @@
-0
\ No newline at end of file
diff --git a/bt5/erp5_simulation_core/bt/template_update_tool b/bt5/erp5_simulation_core/bt/template_update_tool
deleted file mode 100644
index c227083464fb9af8955c90d2924774ee50abb547..0000000000000000000000000000000000000000
--- a/bt5/erp5_simulation_core/bt/template_update_tool
+++ /dev/null
@@ -1 +0,0 @@
-0
\ No newline at end of file
diff --git a/bt5/erp5_simulation_core/bt/template_workflow_id_list b/bt5/erp5_simulation_core/bt/template_workflow_id_list
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/bt5/erp5_simulation_core/bt/title b/bt5/erp5_simulation_core/bt/title
deleted file mode 100644
index 23c6ff9cbfd60796141fc029bd579edb8c16d6ee..0000000000000000000000000000000000000000
--- a/bt5/erp5_simulation_core/bt/title
+++ /dev/null
@@ -1 +0,0 @@
-erp5_simulation_core
\ No newline at end of file
diff --git a/bt5/erp5_simulation_core/bt/version b/bt5/erp5_simulation_core/bt/version
deleted file mode 100644
index ceab6e11ece0bcec917c12e11d350946f085d549..0000000000000000000000000000000000000000
--- a/bt5/erp5_simulation_core/bt/version
+++ /dev/null
@@ -1 +0,0 @@
-0.1
\ No newline at end of file
diff --git a/product/ERP5/tests/testERP5Simulation.py b/product/ERP5/tests/testERP5Simulation.py
index ae142093a072558e6bcd9f5d27155bbfff5aa781..342ce15fd8b3a1d27d4d86f6994614315b43ba17 100644
--- a/product/ERP5/tests/testERP5Simulation.py
+++ b/product/ERP5/tests/testERP5Simulation.py
@@ -41,7 +41,7 @@ from testPackingList import TestPackingList, TestPackingListMixin
 class TestERP5SimulationMixin(TestPackingListMixin):
   def getBusinessTemplateList(self):
     return list(TestPackingListMixin.getBusinessTemplateList(self)) + \
-           ['erp5_simulation_core', 'erp5_simulation',]
+           ['erp5_simulation',]
 
   def afterSetUp(self, quiet=1, run=1):
     TestPackingListMixin.afterSetUp(self, quiet, run)