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Re: 3 possible approaches for representing concepts

• To: <xml-dev@l...>
• Subject: Re: 3 possible approaches for representing concepts
• From: "Rick Jelliffe" <ricko@a...>
• Date: Thu, 3 Apr 2003 18:12:21 +1000
• References: <E190qjd-00060S-00@b...>

From: "Uche Ogbuji" <uche.ogbuji@f...>

> Joe's question is not whether, given a bit of discrete information it should 
> be made into a child element or an attribute, but rather how much semantic 
> information should be packed into generic identifiers: a much tougher question.

Another aspect is the extent to which you can augment items using a DTD
or schema.  You can have your cake and eat it too, Marie Antoinette not
withstanding.

For example, 
<!ATTLIST cybfea
    fullname CDATA #FIXED "CurrentYearBudgetFinalEstimatedAmount"
    type CDATA #FIXED "Amount"
    yearType CDATA #FIXED "CurrentYear" 
    amountType CDATA #FIXED "Budget"
    finalIndicator CDATA #FIXED "Final" 
    estimateIndicator CDATA #FIXED "Estimated"
>

means that the markup of

<cybfea>999.99</cybfea>

implies the infoset of 

<cybfea fullname="CurrentYearBudgetFinalEstimatedAmount"
    type="Amount"
    yearType="CurrentYear" 
    amountType="Budget"
    finalIndicator="Final" 
    estimateIndicator="Estimated"
>999.99</cybfea>

Another aspect is whether the name is part of a fixed series (or are made from 
every permutation of some fixed set): these are more suited for fielded names. 
(Mentioned at p1-34 in my old XML & SGML Cookbook).  For example, people
probably wouldn't have an element 
<Amount999.99 yearType="CurrentYear" amountType="Budget"
finalIndicator="Final" estimateIndicator="Estimated" />

nor

 <CurrentYearBudgetFinalEstimatedAmount999.99/>

Cheers
Rick Jelliffe
Cheers
Rick Jelliffe

• Follow-Ups:
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    • From: Jonathan Robie <jonathan.robie@d...>

• References:
  • Re: 3 possible approaches for representing concepts
    • From: Uche Ogbuji <uche.ogbuji@f...>

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