DFDL has the design point that the combination of schema & data should give the same result regardless of locale and/or machine. To create a schema that does vary across locale or machine requires the user deliberately to use expressions for the relevant DFDL properties (encoding, decimal separator, etc) and parameterise the schema, using either built-in DFDL variables or user-defined variables. However the dfdl:calendarLanguage property is only defined as a String, I think it should also allow an expression as otherwise a schema is tied to a particular locale for it's calendar language support. Regards Steve Hanson Architect, IBM Data Format Description Language (DFDL) Co-Chair, OGF DFDL Working Group IBM SWG, Hursley, UK smh@uk.ibm.com tel:+44-1962-815848 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