diff --git a/product/ERP5/Document/RoleDefinition.py b/product/ERP5/Document/RoleDefinition.py
new file mode 100644
index 0000000000000000000000000000000000000000..0d181d9aea52123b2a3279ed6ef9a0f9bf707e97
--- /dev/null
+++ b/product/ERP5/Document/RoleDefinition.py
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+##############################################################################
+#
+# Copyright (c) 2002-2006 Nexedi SARL and Contributors. All Rights Reserved.
+#
+# 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 AccessControl import ClassSecurityInfo
+from Products.CMFCore.utils import getToolByName
+from Products.CMFCore.WorkflowCore import WorkflowMethod
+from Products.ERP5Type import Permissions, PropertySheet, Constraint, Interface
+from Products.ERP5Type.XMLObject import XMLObject
+
+class RoleDefinition(XMLObject):
+    # CMF Type Definition
+    meta_type = 'ERP5 Role Definition'
+    portal_type = 'Role Definition'
+    isPortalContent = 1
+    isRADContent = 1
+
+    # Declarative security
+    security = ClassSecurityInfo()
+    security.declareObjectProtected(Permissions.AccessContentsInformation)
+
+    # Default Properties
+    property_sheets = ( PropertySheet.Base
+                      , PropertySheet.XMLObject
+                      , PropertySheet.CategoryCore
+                      , PropertySheet.DublinCore
+                      , PropertySheet.RoleDefinition
+                      )
\ No newline at end of file
diff --git a/product/ERP5/PropertySheet/RoleDefinition.py b/product/ERP5/PropertySheet/RoleDefinition.py
new file mode 100755
index 0000000000000000000000000000000000000000..6424c205ad681dd07811d9205e4eb1bdfac05e4d
--- /dev/null
+++ b/product/ERP5/PropertySheet/RoleDefinition.py
@@ -0,0 +1,44 @@
+##############################################################################
+#
+# Copyright (c) 2006 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 RoleDefinition:
+  """
+    RoleDefinition defines association between a role name and a list of
+    Person/Organisation/Domain
+  """
+
+  _properties = (
+    { 'id'          : 'role_name',
+      'description' : 'The role name (ex. Assignor, Assignee, etc.)',
+      'type'        : 'string',
+      'mode'        : 'w' },
+   )
+
+  _categories = (
+      'agent',
+    )