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Bob Wyman wrote: > Thomas B. Passin wrote: > >>national standards relating to surface transportation - >>they used asn.1 as a schema language, but now want to >>use xml for the actual messages while sticking with the >>asn.1 for schemas, because the existing versions already used it. > > Today, now that we've got an updated X.693 and vendor support > for it, these folk can simply use an E-XER encoder/decoder and they'll > have XML moving in an out of the systems that used to only support > binary encodings. And, they won't have to change any code other than > the one or two lines of code that tell the ASN.1 layer which > encoder/decoder to use. They mostly did not actually have any implemented systems using asn.1 - certainly the newer standards did not have them. But they did have the schemas and were moving towards implementations. So the situation was a bit strange. Cheers, Tom P
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