RE: [xml-dev] XUL Compact Syntax Study Now Online - Is XML too hardfor Aunt Trudie?

["Kirkham, Pete (UK)" <pete.kirkham@baesystems.com>]

As I tried to illustrate with the lisp 'syntax', the added value is in being able to manipulate the data with a different set of tools and abstractions, not in a mechanical transform from one encoding to another. Merely eliding redundant information will gain you a little 'friendliness', as humans are good at getting meaning from context automatically. But IME the power in a representation of data is in the abstractions it facilitates and the patterns it allows the user to observe and create, not the amount of compression it supports (though compression brings features spacially closer together so pattern mining becomes easier). 

You can't do arithmetic easily with Roman numerals, so the 'compact syntax' of Arabic numerals was a big gain, but either serve as a datum for a copyright year. But that didn't mean we started using Arabic script for language.

Many of the compact syntaxes give a local gain in one domain by directly supporting the abstractions for that domain, such as RNC, but don't impact on the general XML case. For XUL, a wisywig editor may be best for the occasional user, a lisp binding would allow macros to be used for some abstraction and automation and agile development, and a UML2 HUTN mapping could give direct model-driven-development support via QVT (http://qvtp.org/) for the commercial engineers (ie the UML tool thinks it's a profile of UML rather than the output of a code generator). None of those are capabilities inherent in XML, nor are they really anything to do with the syntax.


Pete

********************************************************************
This email and any attachments are confidential to the intended
recipient and may also be privileged. If you are not the intended
recipient please delete it from your system and notify the sender.
You should not copy it or use it for any purpose nor disclose or
distribute its contents to any other person.
********************************************************************