[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: Venetian Blinds vs Garden of Eden patterns for industry st
Hi Lech, >> I have noticed that many of the schemas in the industry, for instance >> UBL have gone for Garden of Eden first and later reverted to >> Venetian Blinds. Without wanting to join the discussion about design patterns, may I point out that UBL library schemas do use the 'Garden of Eden' pattern. Juerg Tschumperlin Data Management Solutions Wellington, New Zealand www.d-m-s.co.nz -----Original Message----- From: Lech Rzedzicki [mailto:xchaotic@gmail.com] Sent: Thursday, 28 October 2010 5:32 a.m. To: xml-dev@lists.xml.org Subject: Venetian Blinds vs Garden of Eden patterns for industry standards XML Schemas Hi all. I am now involved in developing the next iteration of schemas to standardise information storage and exchange for trademarks and design (there is also some cooperation with patent people). The current standards (TM-XML and DS-XML) use a venetian blind pattern because it nicely mimics OO model, so it's easy to generate classes and objects, also it hides element definitions so there's no conflicts when processing them. Finally the naming convention (not my idea) means that the element names are not reusable anyway. Some people are now proposing that we move to "Garden of Eden" design patter, but I don't see that as a particularly smart move in the context of our domain. I have noticed that many of the schemas in the industry, for instance UBL have gone for Garden of Eden first and and later reverted to Venetian Blinds. I am very interested in some thoughts from the trenches as to why one or the other approach might be more useful in a committee driven standards with contributors from different domains. No need to point me to google either - I have read all the articles about it [1,2,3] and authored schemas that are in production now both ways, but still unconvinced either way... References: [1] A slideshows on various approaches: http://dret.net/lectures/xml-fall08/xsd-2#(11) [2] http://www.xfront.com/GlobalVersusLocal.html - schema best practices [3] http://www.ibm.com/developerworks/xml/library/x-schemascope/ etc... _______________________________________________________________________ XML-DEV is a publicly archived, unmoderated list hosted by OASIS to support XML implementation and development. To minimize spam in the archives, you must subscribe before posting. [Un]Subscribe/change address: http://www.oasis-open.org/mlmanage/ Or unsubscribe: xml-dev-unsubscribe@lists.xml.org subscribe: xml-dev-subscribe@lists.xml.org List archive: http://lists.xml.org/archives/xml-dev/ List Guidelines: http://www.oasis-open.org/maillists/guidelines.php
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