[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Abbreviated Tag Names (ASN.1)
Charles Reitzel wrote: > > This is indeed a positive development. Thanks for the info. > > Would a result of this effort would be that XML would be a standard way to > transform between developer-readable XML and BER|DER|PER data? *ASN.1* would be the standard way, for it is were this "mapping" will be defined ;-) > Would XML > Schema would be an alternate language to define ASN.1 types? Definitely not. > Or both? The idea is for the ASN.1 module to be the schema against which XML-defined data can be defined. BTW I'm not opening a war here; the idea is not for ASN.1 to replace XML Schemas or RELAX or whatever (even though it is a good competitor!); the idea is to continue to use the ASN.1 module as a schema for data that are already specified in ASN.1, but offer them "XML encoding rules" or a way to display with a XML browser. > What is the scope for data types? All ASN.1 types will be taken into account. On the other way round, all XML datatypes will have their counterpart in a standardized ASN.1 module. > Many of the interesting data types, such > as certificates, are defined by X.500 series of standards. There are of > course many other standards that build on ASN.1, so I am curious about the > approach taken to provide extensible support for datatypes. I don't folow what you mean by "extensible" here. As I said, all ASN.1 built-in types will be taken into account, that is, all types that can be defined in ASN.1 will be taken into account! > Will an XML > Schema document be written that corresponds to the ASN.1 notation in each of > the various ITU standards? We are going to provide rules to produce an XML Schema from an ASN.1 module. Hence, it will be easy to program a tool which implements these rules. > If nothing else, it would be a good test for > building modular, layered XML Schemas. > > I checked out the URLs you included and found references to the current > activities you mention. I'll check back for updates at > http://asn1.elibel.tm.fr/en/standards/index.htm. OK. We'll provide some more information at http://asn1.elibel.mt.fr/xml next week (I hope). -- Olivier DUBUISSON france telecom R&D _ DTL/MSV - 22307 Lannion Cedex - France ( ) tel: +33 2 96 05 38 50 - fax: +33 2 96 05 39 45 / \/ -------------------------------------- \_/\ Site ASN.1 : http://asn1.elibel.tm.fr/
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