diff --git a/util/generic/__init__.py b/util/generic/__init__.py
new file mode 100644
index 0000000..38314f3
--- /dev/null
+++ b/util/generic/__init__.py
@@ -0,0 +1,3 @@
+"""
+$Id$
+"""
diff --git a/util/generic/interfaces.py b/util/generic/interfaces.py
new file mode 100644
index 0000000..362c70b
--- /dev/null
+++ b/util/generic/interfaces.py
@@ -0,0 +1,40 @@
+#
+#  Copyright (c) 2009 Helmut Merz helmutm@cy55.de
+#
+#  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
+#
+
+"""
+Generic interface(s).
+
+$Id$
+"""
+
+from zope.interface import Interface
+
+
+class IGeneric(Interface):
+    """ Interface provided by generic adapters to base implementations.
+    """
+
+
+class IGenericObject(IGeneric):
+    """ Interface provided by generic adapters to basic object implementations.
+    """
+
+
+class IGenericFolder(IGenericObject):
+    """ Interface provided by generic adapters to basic folder implementations.
+    """