'Optional' vs 'Implied' in XSchema

Jarle Stabell jarle.stabell at dokpro.uio.no
Tue Jun 30 20:38:06 BST 1998


(Sorry if this already has been discussed)

I think it is unecessary confusing to have both of the pairs
('Required', 'Optional')
and
('Required', 'Implied')

in the XSchema vocabulary.


>Choice (Frequency ("Required", "Optional", "ZeroOrMore", "OneOrMore"))
>Seq (Frequency ("Required", "Optional", "ZeroOrMore", "OneOrMore"))
>Ref (Element, Frequency ("Required", "Optional", "ZeroOrMore", "OneOrMore"))

...

>Required
>Implied



I know that 'Implied' is what is used within DTDs, but personally I find
'Optional' to be much more "to the point", I find 'Implied' quite
"mysterious".

Cheers,
Jarle Stabell


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