diff --git a/app/config/schema/schema.xml b/app/config/schema/schema.xml
new file mode 100644
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--- /dev/null
+++ b/app/config/schema/schema.xml
@@ -0,0 +1,199 @@
+<?xml version="1.0" ?>
+<!--
+  COmanage Match Database Schema
+
+  Portions licensed to the University Corporation for Advanced Internet
+  Development, Inc. ("UCAID") under one or more contributor license agreements.
+  See the NOTICE file distributed with this work for additional information
+  regarding copyright ownership.
+
+  UCAID licenses this file to you 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.
+-->
+<!--
+  While this schema mostly works with database prefixes, foreign key constraints
+  must be specified in raw SQL, which needs the prefixed table name.
+-->
+<schema version="0.3">
+<!--
+  XXX document datamodel
+-->
+
+  <table name="meta">
+    <field name="id" type="I">
+      <key />
+    </field>
+    <field name="upgrade_version" type="C" size="16" />
+  </table>
+  
+  <table name="matchgrids">
+    <field name="id" type="I">
+      <key />
+      <autoincrement />
+    </field>
+    <field name="description" type="C" size="128" />
+    <field name="table_name" type="C" size="128" />
+    <field name="status" type="C" size="2" />
+<!-- XXX add this -->
+    <field name="referenceid_method" type="C" size="2" />
+    <field name="referenceid_start" type="I" />
+    <field name="created" type="T" />
+    <field name="modified" type="T" />
+
+    <index name="matchgrids_i1">
+      <col>table_name</col>
+      <unique />
+    </index>
+  </table>
+
+  <table name="permissions">
+    <field name="id" type="I">
+      <key />
+      <autoincrement />
+    </field>
+<!-- We don't currently define username anywhere, ie: there is no users table -->
+    <field name="username" type="C" size="128" />
+<!-- blank for superuser -->
+    <field name="matchgrid_id" type="I">
+      <constraint>REFERENCES matchgrids(id)</constraint>
+    </field>
+    <field name="permission" type="C" size="2" />
+    <field name="created" type="T" />
+    <field name="modified" type="T" />
+
+    <index name="permissions_i1">
+      <col>username</col>
+    </index>
+  </table>
+  
+  <table name="attribute_groups">
+    <field name="id" type="I">
+      <key />
+      <autoincrement />
+    </field>
+    <field name="matchgrid_id" type="I">
+      <constraint>REFERENCES matchgrids(id)</constraint>
+    </field>
+    <field name="name" type="C" size="32" />
+    <field name="created" type="T" />
+    <field name="modified" type="T" />
+
+    <index name="attribute_groups_i1">
+      <col>matchgrid_id</col>
+    </index>
+  </table>
+  
+  <table name="attributes">
+    <field name="id" type="I">
+      <key />
+      <autoincrement />
+    </field>
+    <field name="matchgrid_id" type="I">
+      <constraint>REFERENCES matchgrids(id)</constraint>
+    </field>
+<!-- restrict to alphanum and use as column name -->
+    <field name="name" type="C" size="32" />
+    <field name="description" type="C" size="128" />
+<!-- probably need some mechanism to map api_name to nested JSON representation or whatever -->
+    <field name="api_name" type="C" size="128" />
+    <field name="attribute_group_id" type="I">
+      <constraint>REFERENCES attribute_groups(id)</constraint>
+    </field>
+    <field name="alphanumeric" type="L" />
+    <field name="case_sensitive" type="L" />
+    <field name="invalidates" type="L" />
+    <field name="null_equivalents" type="L" />
+    <field name="required" type="L" />
+    <field name="search_distance" type="I" />
+    <field name="search_exact" type="L" />
+    <field name="search_substr_from" type="I" />
+    <field name="search_substr_for" type="I" />
+    <field name="created" type="T" />
+    <field name="modified" type="T" />
+
+    <index name="attributes_i1">
+      <col>matchgrid_id</col>
+    </index>
+  </table>
+  
+  <table name="rules">
+    <field name="id" type="I">
+      <key />
+      <autoincrement />
+    </field>
+    <field name="matchgrid_id" type="I">
+      <constraint>REFERENCES matchgrids(id)</constraint>
+    </field>
+<!-- restrict to alphanum? not really a need to...
+     do we need both name AND description?
+ -->
+    <field name="name" type="C" size="32" />
+    <field name="description" type="C" size="128" />
+<!-- C/anonical P/otential -->
+    <field name="confidence_mode" type="C" size="2" />
+<!-- Order within confidence_mode -->
+    <field name="ordr" type="I" />
+    <field name="created" type="T" />
+    <field name="modified" type="T" />
+
+    <index name="rules_i1">
+      <col>matchgrid_id</col>
+    </index>
+  </table>
+  
+<!-- If this were just a join table then by cake convention it should be called rules_attributes
+-->
+  <table name="rule_attributes">
+    <field name="id" type="I">
+      <key />
+      <autoincrement />
+    </field>
+    <field name="rule_id" type="I">
+      <constraint>REFERENCES rules(id)</constraint>
+    </field>
+    <field name="attribute_id" type="I">
+      <constraint>REFERENCES attributes(id)</constraint>
+    </field>
+<!-- E/xact S/ubstr D/istance -->
+    <field name="search_type" type="C" size="2" />
+    <field name="created" type="T" />
+    <field name="modified" type="T" />
+
+    <index name="rule_attributes_i1">
+      <col>rule_id</col>
+    </index>
+    
+<!-- XXX do we really need this index? -->
+    <index name="rule_attributes_i1">
+      <col>attribute_id</col>
+    </index>
+  </table>
+  
+  <table name="systems_of_record">
+    <field name="id" type="I">
+      <key />
+      <autoincrement />
+    </field>
+    <field name="matchgrid_id" type="I">
+      <constraint>REFERENCES matchgrids(id)</constraint>
+    </field>
+    <field name="label" type="C" size="80" />
+<!-- I/nteractive E/xternal -->
+    <field name="resolution_mode" type="c" size="2" />
+    <field name="created" type="T" />
+    <field name="modified" type="T" />
+
+    <index name="systems_of_record_i1">
+      <col>matchgrid_id</col>
+    </index>
+  </table>
+</schema>
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