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Hi,
> type Book -> (Title, Author*)
> type Book1 restricts Book -> (Title, Author, Author)
>
> (in other words, Book1 is for Books with exactly two Authors)
>
> Now suppose we declare an element as
>
> <element book type="Book">
>
> and in the document however we want to use type Book1, how do we say that?
>
> Do we say
> <book>
> <title>XYZ</title>
> <author>ABC</author>
> <author>DEF</author>
> </book>
No, this will use the type "Book".
> or do we say
> <book xsi:type="Book1">
> <title>XYZ</title>
> <author>ABC</author>
> <author>DEF</author>
> </book>
Yes, this will use the type "Book1" so if you do:
<book xsi:type="Book1">
<title>XYZ</title>
<author>ABC</author>
<author>DEF</author>
<author>EDF</author>
</book>
you will receive a validation error.
> I think it should be the latter?
Correct.
Cheers,
/Eddie
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