diff --git a/module/VuFindSearch/src/VuFindSearch/Backend/BackendInterface.php b/module/VuFindSearch/src/VuFindSearch/Backend/BackendInterface.php
index 539863acb0e914d8e53d3973940c11308d54fdf3..acda47c2a2ab7763f663ef860c0b513ec8275cef 100644
--- a/module/VuFindSearch/src/VuFindSearch/Backend/BackendInterface.php
+++ b/module/VuFindSearch/src/VuFindSearch/Backend/BackendInterface.php
@@ -95,18 +95,6 @@ interface BackendInterface
      */
     public function retrieve ($id, ParamBag $params = null);
 
-    /**
-     * Delete a single record.
-     *
-     * @param string   $id     Record identifier
-     * @param ParamBag $params Search backend parameters
-     *
-     * @return RecordCollectionInterface
-     *
-     * @todo Relocate to WritableBackendInterface
-     */
-    public function delete ($id, ParamBag $params = null);
-
     /**
      * Return similar records.
      *
diff --git a/module/VuFindSearch/src/VuFindSearch/Backend/Feature/WritableBackendInterface.php b/module/VuFindSearch/src/VuFindSearch/Backend/Feature/WritableBackendInterface.php
new file mode 100644
index 0000000000000000000000000000000000000000..707dd04266198f8c6e3abaad84786536df62af91
--- /dev/null
+++ b/module/VuFindSearch/src/VuFindSearch/Backend/Feature/WritableBackendInterface.php
@@ -0,0 +1,75 @@
+<?php
+
+/**
+ * Writeable backend feature interface definition.
+ *
+ * PHP version 5
+ *
+ * Copyright (C) Villanova University 2010.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2,
+ * as published by the Free Software Foundation.
+ *
+ * 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
+ *
+ * @category VuFind2
+ * @package  Search
+ * @author   David Maus <maus@hab.de>
+ * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
+ * @link     http://vufind.org
+ */
+
+namespace VuFindSearch\Backend\Feature;
+
+use VuFindSearch\Backend\BackendInterface;
+use VuFindSearch\ParamBag;
+
+/**
+ * Writeable backend feature interface definition.
+ *
+ * @category VuFind2
+ * @package  Search
+ * @author   David Maus <maus@hab.de>
+ * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
+ * @link     http://vufind.org
+ */
+interface WriteableBackendInterface extends BackendInterface
+{
+    /**
+     * Delete a single record.
+     *
+     * @param string   $id     Record identifier
+     * @param ParamBag $params Search backend parameters
+     *
+     * @return void
+     */
+    public function delete ($id, ParamBag $params = null);
+
+    /**
+     * Delete all records.
+     *
+     * @param ParamBag $params Backend parameters
+     *
+     * @return void
+     */
+    public function deleteAll (ParamBag $params = null);
+
+    /**
+     * Update a single record.
+     *
+     * @param mixed    $record Record
+     * @param ParamBag $params Backend parameters
+     *
+     * @return void
+     */
+    public function update ($record, ParamBag $params = null);
+
+}
\ No newline at end of file