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November 2025

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2 discussions

OGF DFDL: What Other Materials needed for Updated submission of DFDL to ISO
by Mike Beckerle 24 Nov '25

24 Nov '25

Alan, When DFDL was first submitted as a PAS standard to ISO, besides the OGF DFDL document itself, I believe there was additional material also that was part of making up the overall submission package. I'm a bit unclear on what materials are part of OGF being accepted as a PAS submitter, and where that material ends, versus which materials accompanied the specific PAS submission of DFDL. I.e., which materials would also need to be updated if a revised DFDL version were submitted. Can you advise on what these additional documents would be to make up a complete submission "package"? An update to DFDL is quite possibly in the works, not imminently, but in a year or so, but I am retiring at the end of 2025 so will be less active going forward. I want to set the stage on what all is involved in creating an updated DFDL spec., beyond just the spec itself, for those still working on it. Thank you for any info Mike Beckerle Apache Daffodil PMC | daffodil.apache.org OGF DFDL Workgroup Co-Chair | www.ogf.org/ogf/doku.php/standards/dfdl/dfdl Owl Cyber Defense | www.owlcyberdefense.com

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Changing some issues from DFDL v2.0 to "Research Topic" label
by Mike Beckerle 05 Nov '25

05 Nov '25

I claim these items are really open-ended research things. Not ready to be considered for specification. I propose relabeling them by removing the DFDL v2.0 label, and adding a "Research Topic" label. - https://github.com/OpenGridForum/DFDL/issues/70 (non-XSD syntax – escape from XML) - https://github.com/OpenGridForum/DFDL/issues/63 (pathological DFDL parser behavior) - https://github.com/OpenGridForum/DFDL/issues/13 (variable or wildcard path step) - The primary feature of ESA’s DFDL4Space implementation - https://github.com/OpenGridForum/DFDL/issues/40 (ICU DecimalFormat class updates) - https://github.com/OpenGridForum/DFDL/issues/27 (embedded XML and JSON in data) - Daffodil attempted this feature, but it’s definitely wrong. Must be part of parsing to verify the XML/JSON are well-formed. We did have a real use case for this.). - https://github.com/OpenGridForum/DFDL/issues/23 (improvements where DFDL v1.0 spec is weak, need better examples, improved discussion text) - https://github.com/OpenGridForum/DFDL/issues/20 (bidirectional text) - Requires a R-to-L languages expert to specify this. This allows the remaining DFDL v2.0 labeled things to be more relevant, as they are shorter term things that are cleanups or are features people actually need. (About half of them are already implemented in Daffodil). In fact the remaining things labeled DFDL v2.0 are possibly just a DFDL v1.1 spec., as they're not as far out as any of the above listed issues, and might be considered a point release, not a major release. Or at least we can have that discussion. But the above list are clearly non-point release items. Thoughts? Mike Beckerle OGF DFDL Workgroup Co-Chair | www.ogf.org/ogf/doku.php/standards/dfdl/dfdl Apache Daffodil PMC | daffodil.apache.org Owl Cyber Defense | www.owlcyberdefense.com Please note: Contributions to the DFDL Workgroup's email discussions are subject to the OGF Intellectual Property Policy <http://www.ogf.org/About/abt_policies.php>

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