Action 307 was raised recently and first task is for implementations to identify which core spec behaviour is not implemented. IBM DFDL The following is the list of DFDL 1.0 spec core features that IBM DFDL does not yet implement. - dfdl:encodingErrorPolicy "replace" - dfdl:binaryBooleanTrueRep with value empty string - dfdl:assert on global element and simple type - dfdl:discriminator on global element and simple type - Multiple xs:appinfo elements within each xs:annotation element - When parsing, the distinction between an element being 'missing', having an 'empty representation' and having an 'absent representation', is not in accordance with the specification. - When encoding is 'UTF-8' or 'UTF-16', byte order marks are not processed The above lists are derived from information at https://www.ibm.com/support/knowledgecenter/en/SSMKHH_10.0.0/com.ibm.etools.... and are those that apply to core spec features. Regards Steve Hanson IBM Hybrid Integration, Hursley, UK Architect, IBM DFDL Co-Chair, OGF DFDL Working Group smh@uk.ibm.com tel:+44-1962-815848 mob:+44-7717-378890 Note: I work Tuesday to Friday Unless stated otherwise above: IBM United Kingdom Limited - Registered in England and Wales with number 741598. Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU