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Subject: Re: [ubl-ndrsc] Containers




From: "Burcham, Bill" <Bill_Burcham@stercomm.com>
To: UBL NDR <ubl-ndrsc@lists.oasis-open.org>
Date: Wed, 2 Jul 2003 16:29:49 -0500 






Title: Message



On June 2, 2003, 
Chin Chee-Kai  
<cheekai@softml.net> wrote:

  
If an item has multiplicity 1..N, then 
  it is containable and the
container is 1..1.  Think that was the NDR 
  conclusion earlier on.

The challenge comes from the other case:  
  Given that the item has
multiplicity 0..N, should the container be 0..1 or 
  1..1?
I think in the 1..N case the container element should 
have multiplicity 1..1 and the contained element can be minOccurs=1, 
maxOccurs=unbounded or whatever.
I 
think in the 0..N case the container element should have multiplicity 0..1 and 
the contained element can be minOccurs=1, maxOccurs=unbounded or 
whatever.

The attached .zip file shows an example.  A person 
has 2 parents and zero-or-more siblings.  I've modeled this as a Person 
(global) element of (complex) type Person.  A Person has a (local) Parents 
element (minOccurs=1, maxOccurs=1) which in turn has a series of Parent element 
(minOccurs=2, maxOccurs=2).  A Person has a Siblings element (minOccurs=0, 
maxOccurs=1) which in turn has a series of Sibling element (minOccurs=0, 
maxOccurs=unbounded).


  

  

    

      
 
    

      
Bill 
      Burcham
Sr. Software 
      Architect, Standards and Applied 
      Technology
Sterling 
      Commerce, Inc.
469.524.2164
bill_burcham@stercomm.com
 
Person.zip












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