[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Binary XML - summary of discussion to date
Dear Alaric, In your summary your forget to mention MPEG-7 which already defines a _generic_, compact and streamable binary format for XML. Best regards, Claude. "Al B. Snell" wrote: > > Ok. I'm creating a mailing list for this issue to get it off of xml-dev, > since I'm sure not everyone wants to hear us ranting :-) > > To date: > > 1) There is still debate over the gains to be had from a binary > format. There are widely varying claims of massive increases in efficiency > or, in some cases, decreases. However, several domains that require binary > storage (when there are embedded binaries, or random access, or in > minimal-hardware systems) have certainly been identified. > > 2) There are existing binary-XML efforts, but many of them are domain > specific; it would be advantageous to try to create a standard that people > agree with to aid interoperability. > > 3) Some people are worried that standardising a binary format will > encourage vendor-specific extensions to that format, but this has not been > a problem for zip/png/jpeg and all the other successful open binary > formats out there; in general, it is not "binaryness" that is at fault for > this, it is vendor control of the format. Similar examples can be made for > text files. > > 4) Regarding human-readability; if the format is ubiquitious like JPEG or > ZIP or gzip, then there will be tools to view them, just like there are > tools to examine zip files and so on. The human readability argument > really only tells us that non-public proprietary standards are bad; it, > again, is not really about text vs. binary. The fact that text viewers are > very widely available already is a plus point for textual encoding, but > it's probably of similar magnitude to the speed gain of binary encoding in > many applications :-) > > 5) There are two quite well developed binary-XML projects lurking in the > wings - the ITU XML / ASN.1 project - which requires feedback, an open > reference implementation, and implementing in standard XML toolkits, and > SDW's random access indexable format, which will be ideal for XML > databases and similar large-dataset applications; by the sound of it, it's > at a similar stage to the ITU one. It is my belief that we would probably > be best helping one (or both) of these projects acheive > ubiquitousness; perhaps the ASN.1 one (if we choose a good encoding, eg > PER) for pipeline streaming applications and SDW's one for data storage. > > 6) http://lists.warhead.org.uk/mailman/listinfo/xml-bin - join, discuss, > don't flame :-) > > 7) In a few months I may be available to write an RFC. That'd be nice. > > ABS > > -- > Alaric B. Snell > http://www.alaric-snell.com/ http://RFC.net/ http://www.warhead.org.uk/ > Any sufficiently advanced technology can be emulated in software > > ------------------------------------------------------------------ > The xml-dev list is sponsored by XML.org, an initiative of OASIS > <http://www.oasis-open.org> > > The list archives are at http://lists.xml.org/archives/xml-dev/ > > To unsubscribe from this elist send a message with the single word > "unsubscribe" in the body to: xml-dev-request@l... -- ______________________________________________ Claude Seyrat Expway c/o Acland 18 avenue Georges V 75008 Paris tel: 33 1 56 62 11 05 fax: 33 1 56 62 11 11 mail: claude.seyrat@e...
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