• To: 'Jeff Tash' <tash@f...>, xml-dev@l...
• Subject: RE: A standard approach to glueing together reusableXML fragments in prose?
• From: "Bullard, Claude L (Len)" <clbullar@i...>
• Date: Thu, 28 Aug 2003 08:41:47 -0500

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• To: 'Jeff Tash' <tash@f...>, xml-dev@l...
• Subject: RE: A standard approach to glueing together reusableXML fragments in prose?
• From: "Bullard, Claude L (Len)" <clbullar@i...>
• Date: Thu, 28 Aug 2003 08:41:47 -0500

Not exactly.   One has to decide when mapping out of an information system of a different type using XML which properties one must preserve losslessly, and then the choice of elements vs attributes is not arbitrary.  I gave an example of that in a different email when comparing object oriented design where fields can have objects to XML design where attributes cannot have elements.  At first, these appear to be incompatible, then pushing the containment relationship of fields and objects to the elements and the description up one metalevel, <object><field><object></object></field></object>, one can make it work.  Going in the other direction and keeping the mapping of fields to elements introduces microparsing and hiding types inside the attribute values.  It is semantically messy, but that is the choice some make to keep the XML encoding looking as much like the object oriented encoding as possible.   Loose, yes, but not arbitrary.  One does have to understand, for example, the structural constraints of XML.   le From: Jeff Tash [mailto:tash@f...] For instance, the choice between when to use elements versus when to use attributes is essentially arbitrary.

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