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Original Message From: "John Cowan" > Liam R E Quin scripsit: > >> A namespace indicates who owns a format, so if ownership changes, >> sometimes a "v2" namespace becomes appropriate. > > IMO all namespace names should contain a year, because the association > between a domain and the organization that owns it can vary from year > to year. "Hackers.com" has been owned by at least four organizations > that I know of. > > NewsML URNs, which are perfectly general and can be used even outside > NewsML, are of the form urn:newsml:foo.com:yyyymmdd:uniqueid:1, where > yyyymmdd is any date on which the minter of the URN controlled foo.com. > Some people use the date on which the URN was minted, others use a > fixed date. (1 is the version number, which must increase though not > necessarily consecutively, so it can be a timestamp.) I'm a pretty pessimistic sort of chap, but I would still be inclined not to bother with the year. I appreciate what you're saying, but you can always call your schema something else if a previous domain owner happens to have already used the name you want to use. The risk doesn't seem to outweigh the ugliness and difficulty of remembering a random number to me. A definite case of YMMV though. Pete Cordell Codalogic Ltd Twitter: http://twitter.com/petecordell Interface XML to C++ the easy way using C++ XML data binding to convert XSD schemas to C++ classes. Visit http://codalogic.com/lmx/ or http://www.xml2cpp.com for more info
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