In the GLUE Specification v. 2.0, page 8, it is specified the Entity class. In its &quot;Association.End&quot; there is just one field: &quot;Extension.Key&quot;, but in the Extension class, its unique identifier is &quot;LocalId&quot;. So in the Entity class, it should be specified &quot;Extension.LocalId&quot; instead of &quot;Extension.Key&quot;. &quot;Extension.Key&quot; shouldn´t be used because of its description, which I quote here: &quot;This identifier is not required to be unique; several instances of this class MAY hold the same value of this attribute&quot;.<br>

<br>So this could be another erratum, isn´t it?<br><br>Regards,<br>David<br clear="all"><br>-- <br>David Horat<br>Software Engineer specialized in Grid and Web technologies<br>IT Department – Grid Deployment Group<br>CERN – European Organization for Nuclear Research » Where the web was born<br>

Phone +41 22 76 77996<br><br><a href="http://davidhorat.com/">http://davidhorat.com/</a><br><a href="http://cern.ch/horat">http://cern.ch/horat</a><br><a href="http://www.linkedin.com/in/davidhorat">http://www.linkedin.com/in/davidhorat</a><br>