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Must have at least one child of type vs. can only have children of type

From: Henri Sivonen <hsivonen@iki.fi>
Date: Fri, 22 May 2009 15:16:36 +0300
Message-Id: <E4EF358B-A814-4E72-8607-AEE1C3E047C8@iki.fi>
To: public-pfwg-comments@w3.org
ARIA defines "Required Child Elements" as "When multiple roles are  
specified as "Required Child Elements" for a role, at least one  
instance of one required child element is required."

It seems that it would be more useful to both allow empty collections  
and to disallow children of other types in these cases. Therefore, it  
would be more useful to change "Required Child Elements" to "Only  
Allowed Child Elements".

(Please make the definition normative. I.e. please take it out of a  

Henri Sivonen
Received on Friday, 22 May 2009 12:17:18 UTC

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