<?xml version="1.0"?> <!DOCTYPE module SYSTEM "relaxCore.dtd"> <module> <interface> <export label="greeting"/> </interface> <elementRule role="greeting"> <sequence> <element name="title" type="string" /> <element name="message" type="string" /> </sequence> </elementRule> <tag name="greeting"> <attribute name="seqNo" required="true" type="int"/> <attribute name="to" required="true" type="string"/> <attribute name="from" required="true" type="string"/> </tag> </module>