Technical question about v1.1 VOEvent schema

[Jean-Paul Le Fèvre]

I'm having difficulties with the VOEvent-v1.1.xsd schema :

I've compiled the file using jaxb, the Sun schema compiler but I couldn't 
parse a VOEvent file using my code. More specifically the <What> section 
caused my program to fail.

I figured out that the reason had to do with the fact that the element <Param> 
has no type specified in the <What> section of the schema . It is the same 
for <Group> and <Reference>.

I've been able to fix my code by modifying the schema, adding type="Param" to
<xs:element name="Param"/> : <xs:element name="Param" type="Param" /> 
everywhere and the same for <Group> and <Reference>.

Am I right ? Do I miss something ?

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Jean-Paul Le Fèvre  * Mail : Jean-Paul.LeFevre at cea.fr