--- a/model/ProvenanceModel.html	Wed Sep 14 14:57:01 2011 +0100
+++ b/model/ProvenanceModel.html	Wed Sep 14 15:02:05 2011 +0100
@@ -1664,6 +1664,9 @@
 </ul>
 </p>
 
+<div class='note'>
+Currently, the non-terminal <span class="nonterminal">asserter</span> is defined as URI. We may want the asserter to be an agent instead, and therefore use PROV-DM to express the provenance of PROV-DM.  We seek inputs on how to resolve this issue. </div>
+
 <p>Account expressions constitue a scope for identifiers. An identifier within the scope of an account is intended to denote a single expression. However, nothing prevents an asserter from asserting an account containing, for example,  multiple entity expressions with a same identifier but different attribute-values. In that case, this should be understood the entity expression with this identifier, with the union of all attributes values, as formalized in <a href="#identified-entity-in-account">identifier-in-account</a>.</p>
 
 <div class='constraint' id='identified-entity-in-account'>