--- a/model/ProvenanceModel.html Wed Sep 14 13:25:40 2011 +0100
+++ b/model/ProvenanceModel.html Wed Sep 14 13:39:34 2011 +0100
@@ -1634,21 +1634,18 @@
<section id="expression-Account">
<h3>Account</h3>
-<p>An <dfn id="dfn-Account">account expression</dfn> is a special kind of provenance container expression forming a perspective on the world, enriched as follows:
+<p>In PROV-DM, an <dfn id="dfn-Account">account expression</dfn> is a wrapper of expressions with a dual purpose:
<ul>
-<li> An account has a mandatory asserter.
-<li> An account provides a scope for some constraints associated with the constructs it wraps, such as:
-<ul>
-<li> the uniqueness of generation for a given entity (see <a href="#generation-unicity">generation-unicity</a>).
-<li> inference of use (see <a href="#derivation-use">derivation-use</a>).
-</ul>
+<li> It is the mechanism by which attribution of provenance can be assserted; it allows asserters to bundle up their assertions, and assert suitable attribution;
+<li> It provides a scoping mechanism for expression identifiers and for some contraints (such as
+ <a href="#generation-unicity">generation-unicity</a> and <a href="#derivation-use">derivation-use</a>).
</ul>
</p>
-<p>In PROV-ASN, an account expression's text matches the <span class="nonterminal">account</span> production of the grammar defined in this specification document.</p>
+<p>In PROV-ASN, an account expression's text matches the <span class="nonterminal">accountExpression</span> production of the grammar defined in this specification document.</p>
<div class='grammar'>
-<span class="nonterminal">account</span> :=
+<span class="nonterminal">accountExpression</span> :=
<span class="name">account</span>
<span class="name">(</span>
<span class="nonterminal">identifier</span>