Fwd: [Tc] Request for comments for “Nillable GML” Candidate Standard

[Steve Foreman]

All,

OGC has asked for comments on a "nillable GML" proposal. Please let me know if there is a problem with it by 15 November.

Thanks

Steve

---------- Forwarded message ----------
From: Carl Reed <cr...@opengeospatial.org>
Date: 24 October 2012 18:11
Subject: [Tc] Request for comments for “Nillable GML” Candidate Standard
To: Technical Committee <t...@lists.opengeospatial.org>, Planning Committee <p...@lists.opengeospatial.org>

Dear OGC Members -

 

The OGC Architecture Board approved the “Nillable GML” Candidate Standard for RFC (Request for Comment). Details for the RFC can be found at:

 

http://www.opengeospatial.org/standards/requests

 

This OGC™ Candidate Standard defines a profile of GML in which the default value for the nillable behaviour of feature- and object-properties may be set to “true”. The default nillable value is set at the level of an application, and applies to all properties appearing in the application.

 

Any questions, please let me know.

 

Carl Reed, PhD
CTO and Executive Director Standards Program
Open Geospatial Consortium
www.opengeospatial.org

The OGC: Making Location Count!

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--
__________________________________________________
Dr Steve Foreman
Chief, Data Representation, Metadata and Monitoring
World Meteorological Organization
 
Tel: +41 22 730 8171
Email: sfor...@wmo.int

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[Eizi]

All,

I have no comments.

I just thought it would be useful to share the contents.  The proposal is to define a conventions of URLs to be used as substitute of nilReason.  This is useful if XSD allows XLink but does not allow nullification/nilReason.  So the use is theoretically not limited to GML but also other XSDs that allow XLink, such as ISO 19139 metadata. 

I'm not pushing this idea right now, since I think some implementation always dereference and instantiate XLinks.  But it is good to know how liberal the general atmosphere around TC211 is....

Cheers,
Eizi