diff --git a/openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/model/CISDBaseModel.java b/openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/model/CISDBaseModel.java
new file mode 100644
index 0000000000000000000000000000000000000000..cc2afbb05e0f604b8e88aaf560c505da654550c9
--- /dev/null
+++ b/openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/model/CISDBaseModel.java
@@ -0,0 +1,59 @@
+/*
+ * Copyright 2009 ETH Zuerich, CISD
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package ch.systemsx.cisd.openbis.generic.client.web.client.application.model;
+
+import java.util.Map;
+
+import com.extjs.gxt.ui.client.data.BaseModel;
+
+/**
+ * A Subclass of the GXT BaseModel that, by default, turns off nested value support. 
+ * 
+ * NestedValues check for key strings with '.' in then treat them as paths for traversing multiple
+ * HashMaps. 
+ * 
+ * We don't need this, and, in fact, it causes problems for us, since we occasionally use '.' as
+ * part of a normal column name for a table without intending the nested-value semantics; thus we
+ * turn it off.
+ * 
+ * @author Chandrasekhar Ramakrishnan
+ */
+public abstract class CISDBaseModel extends BaseModel
+{
+
+    private static final long serialVersionUID = 1L;
+
+    /**
+     *
+     *
+     */
+    public CISDBaseModel()
+    {
+        super();
+        setAllowNestedValues(false);
+    }
+
+    /**
+     * @param properties
+     */
+    public CISDBaseModel(Map<String, Object> properties)
+    {
+        super(properties);
+        setAllowNestedValues(false);
+    }
+
+}
diff --git a/openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/model/CISDBaseModelData.java b/openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/model/CISDBaseModelData.java
new file mode 100644
index 0000000000000000000000000000000000000000..c8d13e2e19038101ca443c037672af98c6e49e60
--- /dev/null
+++ b/openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/model/CISDBaseModelData.java
@@ -0,0 +1,61 @@
+/*
+ * Copyright 2009 ETH Zuerich, CISD
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package ch.systemsx.cisd.openbis.generic.client.web.client.application.model;
+
+import java.util.Map;
+
+import com.extjs.gxt.ui.client.data.BaseModelData;
+
+/**
+ * A Subclass of the GXT BaseModelData that, by default, turns off nested value support. 
+ * 
+ * NestedValues check for key strings with '.' in then treat them as paths for traversing multiple
+ * HashMaps. 
+ * 
+ * We don't need this, and, in fact, it causes problems for us, since we occasionally use '.' as
+ * part of a normal column name for a table without intending the nested-value semantics; thus we
+ * turn it off.
+ * 
+ * @author Chandrasekhar Ramakrishnan
+ */
+public abstract class CISDBaseModelData extends BaseModelData
+{
+    
+    private static final long serialVersionUID = 1L;
+
+    /**
+     *
+     *
+     */
+    public CISDBaseModelData()
+    {
+        super();
+        setAllowNestedValues(false);
+    }
+
+    /**
+     *
+     *
+     * @param properties
+     */
+    public CISDBaseModelData(Map<String, Object> properties)
+    {
+        super(properties);
+        setAllowNestedValues(false);
+    }
+
+}