diff --git a/product/ERP5/Core/Amount.py b/product/ERP5/Core/Amount.py
deleted file mode 100644
index d5f7bd708ccb5b411e0c731a318857a96bf3b375..0000000000000000000000000000000000000000
--- a/product/ERP5/Core/Amount.py
+++ /dev/null
@@ -1,32 +0,0 @@
-##############################################################################
-#
-# Copyright (c) 2002 Nexedi SARL and Contributors. All Rights Reserved.
-#                    Jean-Paul Smets-Solanes <jp@nexedi.com>
-#
-# WARNING: This program as such is intended to be used by professional
-# programmers who take the whole responsability of assessing all potential
-# consequences resulting from its eventual inadequacies and bugs
-# End users who are looking for a ready-to-use solution with commercial
-# garantees and support are strongly adviced to contract a Free Software
-# Service Company
-#
-# This program is Free Software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
-#
-##############################################################################
-
-class Amount:
-  """
-    An amount defines a quantity and variation of a resource
-  """
diff --git a/product/ERP5/Core/Capacity.py b/product/ERP5/Core/Capacity.py
deleted file mode 100644
index fe3dc5ca3f71581d08aeed31186a2f80c1a4e53f..0000000000000000000000000000000000000000
--- a/product/ERP5/Core/Capacity.py
+++ /dev/null
@@ -1,34 +0,0 @@
-##############################################################################
-#
-# Copyright (c) 2002 Nexedi SARL and Contributors. All Rights Reserved.
-#                    Jean-Paul Smets-Solanes <jp@nexedi.com>
-#
-# WARNING: This program as such is intended to be used by professional
-# programmers who take the whole responsability of assessing all potential
-# consequences resulting from its eventual inadequacies and bugs
-# End users who are looking for a ready-to-use solution with commercial
-# garantees and support are strongly adviced to contract a Free Software
-# Service Company
-#
-# This program is Free Software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
-#
-##############################################################################
-
-class Capacity:
-  """
-    A capacity is defined as a set of resources with quantities
-    expressed in a standard unit
-  """
-  pass
diff --git a/product/ERP5/Core/Causality.py b/product/ERP5/Core/Causality.py
deleted file mode 100644
index bca0cb4733d93c96dc7d38a1cffc3ca58aedd394..0000000000000000000000000000000000000000
--- a/product/ERP5/Core/Causality.py
+++ /dev/null
@@ -1,33 +0,0 @@
-##############################################################################
-#
-# Copyright (c) 2002 Nexedi SARL and Contributors. All Rights Reserved.
-#                    Jean-Paul Smets-Solanes <jp@nexedi.com>
-#
-# WARNING: This program as such is intended to be used by professional
-# programmers who take the whole responsability of assessing all potential
-# consequences resulting from its eventual inadequacies and bugs
-# End users who are looking for a ready-to-use solution with commercial
-# garantees and support are strongly adviced to contract a Free Software
-# Service Company
-#
-# This program is Free Software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
-#
-##############################################################################
-
-class Causality:
-  """
-    A causality contains movements generated by a template.
-  """
-  pass
diff --git a/product/ERP5/Core/Container.py b/product/ERP5/Core/Container.py
deleted file mode 100644
index 35baa10ad01482a0679bb8cdbc0df5f620b58153..0000000000000000000000000000000000000000
--- a/product/ERP5/Core/Container.py
+++ /dev/null
@@ -1,34 +0,0 @@
-##############################################################################
-#
-# Copyright (c) 2002 Nexedi SARL and Contributors. All Rights Reserved.
-#                    Jean-Paul Smets-Solanes <jp@nexedi.com>
-#
-# WARNING: This program as such is intended to be used by professional
-# programmers who take the whole responsability of assessing all potential
-# consequences resulting from its eventual inadequacies and bugs
-# End users who are looking for a ready-to-use solution with commercial
-# garantees and support are strongly adviced to contract a Free Software
-# Service Company
-#
-# This program is Free Software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
-#
-##############################################################################
-
-from Item import Item
-
-class Container(Item):
-  """
-    A container is a collection of Items (and Containers)
-  """
diff --git a/product/ERP5/Core/Core.stx b/product/ERP5/Core/Core.stx
deleted file mode 100644
index 5ca720074ae5b02c6107c737bb27d10cf93b8ab9..0000000000000000000000000000000000000000
--- a/product/ERP5/Core/Core.stx
+++ /dev/null
@@ -1,63 +0,0 @@
-
-
-
-Movement
-
-  Resource: Tissu 4
-  Variation:    length:4
-                size:39
-                color:blueT22
-                height:44
-                hw_option:tot,titi
-                service_option:xuxu,aoao
-  Source: Atelier
-  Destination: Tunisie
-  Qty: 40
-
-  source/organisation/5
-  destination/organisation/10
-  resource/modele/56
-  variante/modele/56/bleu
-  variante/modele/56/finitition_pierre_ponce/10
-  variante/modele/56/T38
-  variante/modele/56/32MB
-  variante/modele/56/longueur/30
-  variante/modele/56/large/50
-
-  SQL
-    uid(source), uid(destination), uid(resource), qty, length, color, etc. etc.
-
-  Methods
-    getLength
-    getSize
-    getCoulor
-    getHardwareOptions
-
-
-Resource
-
-
-
-  VariationRange
-    - id: length
-    - min: 10
-    - max: 100
-
-    variation_category/length
-
-  VariationValue
-
-    - id: blue
-
-    variation_category/color
-
-  VariationValue
-
-    - id: solar pannel
-
-    variation_category/power_supply
-
-
-Price is pointr in N dimension space related to variant and....
-
-
diff --git a/product/ERP5/Core/Delivery.py b/product/ERP5/Core/Delivery.py
deleted file mode 100644
index f4b9a3043235fa1f35a7de7ffefc19730719d4d7..0000000000000000000000000000000000000000
--- a/product/ERP5/Core/Delivery.py
+++ /dev/null
@@ -1,32 +0,0 @@
-##############################################################################
-#
-# Copyright (c) 2002 Nexedi SARL and Contributors. All Rights Reserved.
-#                    Jean-Paul Smets-Solanes <jp@nexedi.com>
-#
-# WARNING: This program as such is intended to be used by professional
-# programmers who take the whole responsability of assessing all potential
-# consequences resulting from its eventual inadequacies and bugs
-# End users who are looking for a ready-to-use solution with commercial
-# garantees and support are strongly adviced to contract a Free Software
-# Service Company
-#
-# This program is Free Software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
-#
-##############################################################################
-
-class Delivery:
-  """
-    A Delivery object is a collection of movements
-  """
diff --git a/product/ERP5/Core/Item.py b/product/ERP5/Core/Item.py
deleted file mode 100644
index 795c56eae1aece5c38895774dcc74a9735e332ad..0000000000000000000000000000000000000000
--- a/product/ERP5/Core/Item.py
+++ /dev/null
@@ -1,35 +0,0 @@
-##############################################################################
-#
-# Copyright (c) 2002 Nexedi SARL and Contributors. All Rights Reserved.
-#                    Jean-Paul Smets-Solanes <jp@nexedi.com>
-#
-# WARNING: This program as such is intended to be used by professional
-# programmers who take the whole responsability of assessing all potential
-# consequences resulting from its eventual inadequacies and bugs
-# End users who are looking for a ready-to-use solution with commercial
-# garantees and support are strongly adviced to contract a Free Software
-# Service Company
-#
-# This program is Free Software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
-#
-##############################################################################
-
-class Item:
-  """
-    An Item defines a serial number and is referenced by an amount
-    or a movement (or a couple of). During transformations, a tracking
-    document can be produced to provide details between transformed items.
-  """
-
diff --git a/product/ERP5/Core/MetaNode.py b/product/ERP5/Core/MetaNode.py
deleted file mode 100644
index d5f953ea0d18144416910e9cad7ed24c6b49d4f2..0000000000000000000000000000000000000000
--- a/product/ERP5/Core/MetaNode.py
+++ /dev/null
@@ -1,57 +0,0 @@
-##############################################################################
-#
-# Copyright (c) 2002 Nexedi SARL and Contributors. All Rights Reserved.
-#                    Jean-Paul Smets-Solanes <jp@nexedi.com>
-#
-# WARNING: This program as such is intended to be used by professional
-# programmers who take the whole responsability of assessing all potential
-# consequences resulting from its eventual inadequacies and bugs
-# End users who are looking for a ready-to-use solution with commercial
-# garantees and support are strongly adviced to contract a Free Software
-# Service Company
-#
-# This program is Free Software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
-#
-##############################################################################
-
-class MetaNode:
-  """
-    A metanode aggregates a collection of real nodes.
-    It is used for planning and budgeting. 
-    One application of a metanode is to create accounting rules....
-      
-    Ex. accounting
-
-      source/coramy/accounting/4003
-      destination/norfatex/accounting/2001
-
-      resource: EUR
-      amount: 10.0
-
-      source/portal_categories/country/france/accounting/4003
-      destination/portal_categories/country/spain/accounting/2001
-
-      resource: EUR
-      amount: 10.0
-
-    This means that we may have to add some uid to movement table
-    if we wish to benefit from acquisition.
-
-  """
-
-  def getNodeList():
-    """
-      Returns the subnodes of this metanode
-    """
diff --git a/product/ERP5/Core/MetaResource.py b/product/ERP5/Core/MetaResource.py
deleted file mode 100644
index 0ec6aa375d92fb47af76f5255495a7b136e1b80d..0000000000000000000000000000000000000000
--- a/product/ERP5/Core/MetaResource.py
+++ /dev/null
@@ -1,35 +0,0 @@
-##############################################################################
-#
-# Copyright (c) 2002 Nexedi SARL and Contributors. All Rights Reserved.
-#                    Jean-Paul Smets-Solanes <jp@nexedi.com>
-#
-# WARNING: This program as such is intended to be used by professional
-# programmers who take the whole responsability of assessing all potential
-# consequences resulting from its eventual inadequacies and bugs
-# End users who are looking for a ready-to-use solution with commercial
-# garantees and support are strongly adviced to contract a Free Software
-# Service Company
-#
-# This program is Free Software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
-#
-##############################################################################
-
-class MetaResource:
-  """
-    A meta resource is an abstract resource which summarizes
-    a collection of resources.
-
-    Application is : budgetting
-  """
diff --git a/product/ERP5/Core/Movement.py b/product/ERP5/Core/Movement.py
deleted file mode 100644
index e52ef53d64ada5ec67eeeca055918c0b024ce135..0000000000000000000000000000000000000000
--- a/product/ERP5/Core/Movement.py
+++ /dev/null
@@ -1,35 +0,0 @@
-##############################################################################
-#
-# Copyright (c) 2002 Nexedi SARL and Contributors. All Rights Reserved.
-#                    Jean-Paul Smets-Solanes <jp@nexedi.com>
-#
-# WARNING: This program as such is intended to be used by professional
-# programmers who take the whole responsability of assessing all potential
-# consequences resulting from its eventual inadequacies and bugs
-# End users who are looking for a ready-to-use solution with commercial
-# garantees and support are strongly adviced to contract a Free Software
-# Service Company
-#
-# This program is Free Software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
-#
-##############################################################################
-
-class Movement:
-  """
-    Movement of a quantity of resource in a given variation
-    from a source to a destination. Discrete variation
-    is stored as category. Continuous variation is stored
-    as attribute. 
-  """
diff --git a/product/ERP5/Core/Node.py b/product/ERP5/Core/Node.py
deleted file mode 100644
index 82e6fba2bb045269833bced7109de2f3b2a4f1e1..0000000000000000000000000000000000000000
--- a/product/ERP5/Core/Node.py
+++ /dev/null
@@ -1,32 +0,0 @@
-##############################################################################
-#
-# Copyright (c) 2002 Nexedi SARL and Contributors. All Rights Reserved.
-#                    Jean-Paul Smets-Solanes <jp@nexedi.com>
-#
-# WARNING: This program as such is intended to be used by professional
-# programmers who take the whole responsability of assessing all potential
-# consequences resulting from its eventual inadequacies and bugs
-# End users who are looking for a ready-to-use solution with commercial
-# garantees and support are strongly adviced to contract a Free Software
-# Service Company
-#
-# This program is Free Software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
-#
-##############################################################################
-
-class Node:
-  """
-    People, machines, 
-  """
diff --git a/product/ERP5/Core/Path.py b/product/ERP5/Core/Path.py
deleted file mode 100644
index 76291006b2de7f70d4e9e094c933146bdeaedb83..0000000000000000000000000000000000000000
--- a/product/ERP5/Core/Path.py
+++ /dev/null
@@ -1,35 +0,0 @@
-##############################################################################
-#
-# Copyright (c) 2002 Nexedi SARL and Contributors. All Rights Reserved.
-#                    Jean-Paul Smets-Solanes <jp@nexedi.com>
-#
-# WARNING: This program as such is intended to be used by professional
-# programmers who take the whole responsability of assessing all potential
-# consequences resulting from its eventual inadequacies and bugs
-# End users who are looking for a ready-to-use solution with commercial
-# garantees and support are strongly adviced to contract a Free Software
-# Service Company
-#
-# This program is Free Software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
-#
-##############################################################################
-
-class Path(Relation):
-  """
-    A path defines a planning path between two nodes
-    source, destination, domain (which resource)
-    mapped value is : delivery, price etc.
-  """
-
diff --git a/product/ERP5/Core/Prototype.py b/product/ERP5/Core/Prototype.py
deleted file mode 100644
index 1d475bdd250c1b3b5b900e62fbf2bf6ea3e3568b..0000000000000000000000000000000000000000
--- a/product/ERP5/Core/Prototype.py
+++ /dev/null
@@ -1,33 +0,0 @@
-##############################################################################
-#
-# Copyright (c) 2002 Nexedi SARL and Contributors. All Rights Reserved.
-#                    Jean-Paul Smets-Solanes <jp@nexedi.com>
-#
-# WARNING: This program as such is intended to be used by professional
-# programmers who take the whole responsability of assessing all potential
-# consequences resulting from its eventual inadequacies and bugs
-# End users who are looking for a ready-to-use solution with commercial
-# garantees and support are strongly adviced to contract a Free Software
-# Service Company
-#
-# This program is Free Software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
-#
-##############################################################################
-
-class Prototype:
-  """
-    A transformed resource which can be extended
-    All Transformations should be prototypes
-  """
diff --git a/product/ERP5/Core/Quantity.py b/product/ERP5/Core/Quantity.py
deleted file mode 100644
index 1b0767394cacceb631cf265b855a3855cdaeed6c..0000000000000000000000000000000000000000
--- a/product/ERP5/Core/Quantity.py
+++ /dev/null
@@ -1,32 +0,0 @@
-##############################################################################
-#
-# Copyright (c) 2002 Nexedi SARL and Contributors. All Rights Reserved.
-#                    Jean-Paul Smets-Solanes <jp@nexedi.com>
-#
-# WARNING: This program as such is intended to be used by professional
-# programmers who take the whole responsability of assessing all potential
-# consequences resulting from its eventual inadequacies and bugs
-# End users who are looking for a ready-to-use solution with commercial
-# garantees and support are strongly adviced to contract a Free Software
-# Service Company
-#
-# This program is Free Software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
-#
-##############################################################################
-
-class Quantity:
-  """
-    Quantities are float in ERP5
-  """
diff --git a/product/ERP5/Core/Resource.py b/product/ERP5/Core/Resource.py
deleted file mode 100644
index 8c2ef162e5a02f62534ba9aa1529bdee568d14a4..0000000000000000000000000000000000000000
--- a/product/ERP5/Core/Resource.py
+++ /dev/null
@@ -1,32 +0,0 @@
-##############################################################################
-#
-# Copyright (c) 2002 Nexedi SARL and Contributors. All Rights Reserved.
-#                    Jean-Paul Smets-Solanes <jp@nexedi.com>
-#
-# WARNING: This program as such is intended to be used by professional
-# programmers who take the whole responsability of assessing all potential
-# consequences resulting from its eventual inadequacies and bugs
-# End users who are looking for a ready-to-use solution with commercial
-# garantees and support are strongly adviced to contract a Free Software
-# Service Company
-#
-# This program is Free Software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
-#
-##############################################################################
-
-class Resource:
-  """
-    Describes a resource
-  """
diff --git a/product/ERP5/Core/Rule.py b/product/ERP5/Core/Rule.py
deleted file mode 100644
index d068852560bbf2e3b2151ab08c9c8fb02c2553f4..0000000000000000000000000000000000000000
--- a/product/ERP5/Core/Rule.py
+++ /dev/null
@@ -1,32 +0,0 @@
-##############################################################################
-#
-# Copyright (c) 2002 Nexedi SARL and Contributors. All Rights Reserved.
-#                    Jean-Paul Smets-Solanes <jp@nexedi.com>
-#
-# WARNING: This program as such is intended to be used by professional
-# programmers who take the whole responsability of assessing all potential
-# consequences resulting from its eventual inadequacies and bugs
-# End users who are looking for a ready-to-use solution with commercial
-# garantees and support are strongly adviced to contract a Free Software
-# Service Company
-#
-# This program is Free Software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
-#
-##############################################################################
-
-class Rule:
-  """
-    Implemented as a movement template in XSL approach
-  """
diff --git a/product/ERP5/Core/Tracking.py b/product/ERP5/Core/Tracking.py
deleted file mode 100644
index 3ffcbd5147730b91456cdad3396f589b1ea9b5d9..0000000000000000000000000000000000000000
--- a/product/ERP5/Core/Tracking.py
+++ /dev/null
@@ -1,33 +0,0 @@
-##############################################################################
-#
-# Copyright (c) 2002 Nexedi SARL and Contributors. All Rights Reserved.
-#                    Jean-Paul Smets-Solanes <jp@nexedi.com>
-#
-# WARNING: This program as such is intended to be used by professional
-# programmers who take the whole responsability of assessing all potential
-# consequences resulting from its eventual inadequacies and bugs
-# End users who are looking for a ready-to-use solution with commercial
-# garantees and support are strongly adviced to contract a Free Software
-# Service Company
-#
-# This program is Free Software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
-#
-##############################################################################
-
-class Tracking:
-  """
-    Points to items invoved in a transformation
-    (incl. identity transformation)
-  """
diff --git a/product/ERP5/Core/Transformation.py b/product/ERP5/Core/Transformation.py
deleted file mode 100644
index 0526ae0e4f992dc6e632e497996366a7824176e7..0000000000000000000000000000000000000000
--- a/product/ERP5/Core/Transformation.py
+++ /dev/null
@@ -1,33 +0,0 @@
-##############################################################################
-#
-# Copyright (c) 2002 Nexedi SARL and Contributors. All Rights Reserved.
-#                    Jean-Paul Smets-Solanes <jp@nexedi.com>
-#
-# WARNING: This program as such is intended to be used by professional
-# programmers who take the whole responsability of assessing all potential
-# consequences resulting from its eventual inadequacies and bugs
-# End users who are looking for a ready-to-use solution with commercial
-# garantees and support are strongly adviced to contract a Free Software
-# Service Company
-#
-# This program is Free Software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
-#
-##############################################################################
-
-class Transformation:
-  """
-    Collection of transformed resources
-  """
-  pass
diff --git a/product/ERP5/Core/Variation.py b/product/ERP5/Core/Variation.py
deleted file mode 100644
index 891a9ec459eda243a93bed2c61b4c021b0076178..0000000000000000000000000000000000000000
--- a/product/ERP5/Core/Variation.py
+++ /dev/null
@@ -1,32 +0,0 @@
-##############################################################################
-#
-# Copyright (c) 2002 Nexedi SARL and Contributors. All Rights Reserved.
-#                    Jean-Paul Smets-Solanes <jp@nexedi.com>
-#
-# WARNING: This program as such is intended to be used by professional
-# programmers who take the whole responsability of assessing all potential
-# consequences resulting from its eventual inadequacies and bugs
-# End users who are looking for a ready-to-use solution with commercial
-# garantees and support are strongly adviced to contract a Free Software
-# Service Company
-#
-# This program is Free Software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
-#
-##############################################################################
-
-class Variation:
-  """
-    Discrete variation
-  """
diff --git a/product/ERP5/Core/__init__.py b/product/ERP5/Core/__init__.py
deleted file mode 100644
index de23c0f5bce52025eff4186ef527c948eef61da4..0000000000000000000000000000000000000000
--- a/product/ERP5/Core/__init__.py
+++ /dev/null
@@ -1,4 +0,0 @@
-from Variation import Variation
-from Resource import Resource
-from MetaResource import MetaResource
-from MetaNode import MetaNode