[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Best Practice - beyond schema
Paul, A couple of comments below and note the related thread earlier this month with the title "schema management for a document pipeline: request for comment" from Bob DuCharme, LexisNexis. At 9:18 am +0100 19/6/02, Paul Spencer wrote: >Time, I think for a summary. I know Roger does these well, but I will >have a go in this case since I raised the issue. > >What we are trying to do is take a global XML Schema schema, i.e. one >defined for world-wide use, and tailor it for a specific locale. One >suggestion was to leave this to the authority in each locale to do, >and that is reasonable, but they still need a mechanism. Here are some >choices: > >1. Alter the original schema documents >2. Use <xs:redefine> to create new documents >3. Supplement with an additional (possibly embedded) schema using an >alternative schema language >4. Use XSLT >5. Embed all the locale material in a single document and use a >pre-processor to create the locale-specifc versions > >I would immediately like to rule out option 1 for change management >reasons. .. unless you can manage the variations, which is the subject of my response to Bob's posting, title above. Whichever way you turn, there is a change management problem lurking here! More on this at http://www.deltaxml.com/schema-pipeline/, based on Bob's example. > >I would also like to rule out option 5 and any others that involve >embedding local requirements in global documents. This could work on a >smaller scale, but here we have potentially thousands of local >variations, so it is totally impractical. This is exactly the approach Bob suggests, see his description at http://www.snee.com/xml/schemaStages.html > >Thanks to all for the discussion. > >-- >Paul Spencer > Robin > > > >----------------------------------------------------------------- >The xml-dev list is sponsored by XML.org <http://www.xml.org>, an >initiative of OASIS <http://www.oasis-open.org> > >The list archives are at http://lists.xml.org/archives/xml-dev/ > >To subscribe or unsubscribe from this list use the subscription >manager: <http://lists.xml.org/ob/adm.pl> -- -- ----------------------------------------------------------------- Robin La Fontaine, Director, Monsell EDM Ltd DeltaXML: "Change control for XML in XML" Tel: +44 1684 592 144 Fax: +44 1684 594 504 Email: robin.lafontaine@d... http://www.deltaxml.com
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