I have created the following 3 documents in the current document folder to kick off discussions next week. Support of Default and Null values in DFDL Support of Choices in DFDL Support of Wildcards in DFDL Regards, Geoff Judd Websphere MQ Integrator Development IBM UK Ltd Hursley Telephone: +44-1962-818461 E-mail: JUDDG@uk.ibm.com