PEPPOL-T011-R001
- Message
 QueryRequest Identifier value MUST be expressed in a UUID syntax (RFC 4122).
- Context
 query:QueryRequest- Test
 matches(normalize-space(./@id), '^[0-9a-fA-F]{8}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{12}$')- Usage