[DDI-users] DDI 3.0 xsd question

[Wendy Thomas]

Alerk,

Definately a bug. The intent is to provide the option of:
URN only
ID sequence only
URN plus ID sequence

Clearly that is not the option offered by the scheme.

Achim...could you file this bug? Let J know about it as he needs to 
provide the specific structure to replace it.

Thanks for finding that Alerk!

Wendy

On Thu, 5 Feb 2009, Joachim Wackerow wrote:

> Hello Alerk,
>
> It looks like a bug. It doesn't seem to make sense to allow two URN's or
> two ID's etc.
>
> We will discuss this at the next TIC meeting and will give you feedback.
>
> Thank you for pointing this out.
>
> Achim
>
> Alerk Amin wrote:
>> Hello,
>>
>>    I have a question about a DDI 3.0 document that I am trying to
>> validate.  I hope this is the right mailing list for this question: if
>> it is not, please let me know where I should mail this question.
>>    The following snippet of XML validates properly, but it seems to me
>> like it should not:
>>
>> <l:ConceptReference>
>> 	<r:ID>C_1</r:ID>
>> 	<r:ID>C_2</r:ID>
>> </l:ConceptReference>
>>
>>    Based on the documentation of the ReferenceType in reusable.xsd, the
>> Reference should have a URN, an ID, or both.  2 IDs (or 2 URNs) should
>> not be allowed.
>>    In reusable.xsd, the schema for the ReferenceType contains:
>>
>>        <xs:choice maxOccurs="2">
>>          <xs:element ref="URN">
>>            ...
>>          </xs:element>
>>          <xs:sequence>
>>            <xs:element ref="ID">
>>              ...
>>            </xs:element>
>>            ...
>>          </xs:sequence>
>>        </xs:choice>
>>
>> In order to validate the way the documentation describes, it seems like
>> the scheme should instead contain:
>>
>>      <xs:choice>
>>        <xs:sequence>
>>          <xs:element ref="URN">
>>            ...
>>          </xs:element>
>>          <xs:sequence minOccurs="0">
>>            <xs:element ref="ID">
>>              ...
>>            </xs:element>
>>            ...
>>          </xs:sequence>
>>        </xs:sequence>
>>        <xs:sequence>
>>          <xs:sequence>
>>            <xs:element ref="ID">
>>              ...
>>            </xs:element>
>>            ...
>>          </xs:sequence>
>>          <xs:element ref="URN" minOccurs="0">
>>            ...
>>          </xs:element>
>>        </xs:sequence>
>>      </xs:choice>
>>
>> I would appreciate any help or explanation anyone can provide about
>> this.  If my interpretation of the ReferenceType is incorrect, please
>> let me know.
>>    Thank you for your help.
>>
>> Best,
>> Alerk
>>
>
>
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Wendy L. Thomas                          Phone: +1 612.624.4389
Data Access Core Director		 Fax:   +1 612.626.8375
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