diff -r 6f643fc1de26 -r 34718ebfb3c0 Model/DocumentInterface.php
--- a/Model/DocumentInterface.php	Mon Nov 28 10:34:24 2011 +0100
+++ b/Model/DocumentInterface.php	Mon Nov 28 12:19:56 2011 +0100
@@ -24,14 +24,14 @@
     
     
     /**
-     * TODO: Enter description here ...
+     * Set the external id i.e. the host document id
      *
      * @param text $externalId
      */
     function setExternalId($externalId);
     
     /**
-     * TODO: Enter description here ...
+     * Get the external id, i.e. the host document id
      */
     function getExternalId();