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Re: Principles of XML design

• To: XML Developers List <xml-dev@l...>
• Subject: Re: Principles of XML design
• From: Gavin Thomas Nicol <gtn@r...>
• Date: Fri, 6 May 2005 14:54:36 -0400
• In-reply-to: <1115396995.23451.33.camel@borgia>
• References: <1115333449.13308.140.camel@borgia> <1115325327.13308.98.camel@borgia> <427AA198.90604@o...> <200505052313.j45NDiK07174@f...> <1115379166.23451.26.camel@borgia> <0f38e342973d0996f72284409ab2176b@r...> <1115396995.23451.33.camel@borgia>

On May 6, 2005, at 12:29 PM, Uche Ogbuji wrote:
> What standard?  Many parsers do not use SAX.  There is no standard
> processing model.  Users do seek a standard processing model.  That's
> the problem.

Right, and it is logically a separate problem than defining a standard 
syntax.

Different applications have different processing requirements, so 
having the syntax specification define any one model would be wrong. 
For example, editing applications could well require a different 
API/InfoSet than XML databases. IMHO. This was one of the most 
significant issues in the early DOM specification process: the tension 
between different application domain requirements.

> I understand your basic point.  If there were a standard processing
> model, that would be one thing.  The problem is that there isn't, and
> it's well demonstrated that this is a source of confusion.

I don't in any way disagree that there is a problem, or that there 
should be a solution. I'm just saying it'd be better to do it outside 
the scope of the XML specification itself.

There is no canonical processing model... and there probably cannot 
ultimately be a single canonical processing model, but there are coarse 
classes of processing styles (pull, event-driven, tree-traversal, 
iterator-based, etc.), some of which logically subsume the other. Some 
tighter specification around those would help solve the problem IMHO.

• References:
  • Re: Principles of XML design
    • From: Uche Ogbuji <uche.ogbuji@f...>
  • Principles of XML design
    • From: Uche Ogbuji <Uche.Ogbuji@f...>
  • Re: Principles of XML design
    • From: Bob Foster <bob@o...>
  • Re: Principles of XML design
    • From: Joe English <jenglish@f...>
  • Re: Principles of XML design
    • From: Uche Ogbuji <Uche.Ogbuji@f...>
  • Re: Principles of XML design
    • From: Gavin Thomas Nicol <gtn@r...>
  • Re: Principles of XML design
    • From: Uche Ogbuji <Uche.Ogbuji@f...>

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