diff --git a/product/ERP5/PropertySheet/Ticket.py b/product/ERP5/PropertySheet/Ticket.py
new file mode 100644
index 0000000000000000000000000000000000000000..d5f4ae2848348dae3192a5b4e994ca03ffeb5dbb
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+++ b/product/ERP5/PropertySheet/Ticket.py
@@ -0,0 +1,41 @@
+##############################################################################
+#
+# Copyright (c) 2007 Nexedi SA and Contributors. All Rights Reserved.
+#                    Jean-Paul Smets <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 Ticket:
+  """
+    CRM Ticket properties
+  """
+
+  _properties = (
+    { 'id'          : 'assessment_form_id',
+      'description' : 'The ID of a form which can be used to assess related events.',
+      'type'        : 'string',
+      'mode'        : 'w' },
+  )
+
+  _categories = ()