Notation declaration without "Name" attribute

Hi .

 

Can u please tell me whether the following schema is valid or invalid..

 

<?xml version="1.0"?>

<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">

        <xsd:notation public="image/jpeg" system="viewer.exe"/>

</xsd:schema>

 

Thanks and Regards,

Bharath.

 

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