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MIX  September 2005

MIX September 2005

Subject:

Re: MIX versus NISO standard documentation

From:

"Morgan V. Cundiff" <[log in to unmask]>

Reply-To:

NISO Metadata for Images in XML (MIX)

Date:

Wed, 21 Sep 2005 08:57:16 -0400

Content-Type:

TEXT/PLAIN

Parts/Attachments:

Parts/Attachments

TEXT/PLAIN (52 lines)

Herve,

Yes, there are many elements in the data dictionary that are
mandatory and those same elements in the schema are optional (as you have
noticed). This was done at the request of several early implementors who
found the large number of required elements too burdensome- much of the
"required" data was difficult or impossible to supply.

By the way, a new version of the MIX schema that conforms to the new
edition of the data dictionary will be release for review and testing in
about two weeks. You might want to wait for that.

Morgan Cundiff
Library of Congress




On Wed, 21 Sep 2005, Lhours, Herve wrote:

> I'm working on an implementation of the MIX NISO standard in xml.
>
>
>
>
>
> I'm confused by an apparent mismatch between the data dictionary http://www.niso.org/standards/resources/Z39_87_trial_use.pdf
>
> and the MIX documentation
>
> http://www.loc.gov/standards/mix/mix.xsd.
>
>
>
> While a number of elements are 'Mandatory' in the Dictionary (e.g. CompressionScheme)
>
> All elements are minoccurs="0" in the Schema (i.e. Optional)
>
>
>
> Any feedback gratefully received
>
>
>
> Regards,
>
>
>
> Hervé L'Hours
>
>

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