[auscope-geosciml] "Proportion" data type in GeoSciML v3 [SEC=UNCLASSIFIED]

Oliver.Raymond at ga.gov.au Oliver.Raymond at ga.gov.au
Mon Jan 24 22:01:56 EST 2011

Hi Alistair,

You pre-empted my next question - what mappings from text to numbers do you use.  I have seen the following in our old GGIPAC vocabularies:
"major" = >25%, "minor" = <25%, "trace" = <5%

Is there an agreed numeric mapping of terms - eg, "dominant" and "subordinate" are relative proportion terms, not absolute proportions.  What is the full list of GSV mappings of proportion terms?


From: auscope-geosciml-bounces at lists.arcs.org.au [mailto:auscope-geosciml-bounces at lists.arcs.org.au] On Behalf Of Alistair Ritchie
Sent: Tuesday, 25 January 2011 1:48 PM
To: auscope-geosciml at lists.arcs.org.au
Subject: Re: [auscope-geosciml] "Proportion" data type in GeoSciML v3 [SEC=UNCLASSIFIED]

Should be part of the definition of 'dominant' etc. For example, from the definitions in GSV's Classification Manager:

dominant: 'Component constitutes greater than or equal to 75 percent of the volume of the material.'

            <gsml:principalValue uom="http://some.uri/uom/percent">75</gsml:principalValue>
            <gsml:principalValue uom="http://some.uri/uom/percent">100</gsml:principalValue>

and so on ...

Alistair Ritchie
Department of Primary Industries | Melbourne, Victoria, Australia
Tel: +61 3 9658 4512 | Fax: +61 3 9658 4555

"XML is like violence. If it doesn't solve the problem, use more." - Unknown

On 25 January 2011 13:39, <Bruce.Simons at dpi.vic.gov.au<mailto:Bruce.Simons at dpi.vic.gov.au>> wrote:
Hi Ollie,
The reasoning for numbers was that these are 'universally' searchable.  The intention here was that instead of mapping your local terms ('major', 'minor', 'dominant' etc) to a common CGI vocabulary, and then searching on that vocabulary, the data provider maps their terms directly to a numeric range.

Hey presto - instant interoperability without the need for a vocabulary service!

Bruce Simons

Ph: +61-3-9658 4502
Fax: +61-3-9658 4555
Mobile: +61 429 177155

From:        <Oliver.Raymond at ga.gov.au<mailto:Oliver.Raymond at ga.gov.au>>
To:        <auscope-geosciml at lists.arcs.org.au<mailto:auscope-geosciml at lists.arcs.org.au>>
Date:        25/01/2011 01:32 PM
Subject:        [auscope-geosciml] "Proportion" data type in GeoSciML v3        [SEC=UNCLASSIFIED]
Sent by:        auscope-geosciml-bounces at lists.arcs.org.au<mailto:auscope-geosciml-bounces at lists.arcs.org.au>

Hi all,

I think we may have been a bit over zealous in constraining the model by limiting the various occurrences of "proportion" in GeoSciML v3 to be CGI_NumericRange (eg: GeologicUnitPart/proportion, CompositionPart/proportion).  I have found that my available "proportion" data is in the form of "major", "minor", "dominant", "trace", etc and I am unable to deliver this data in a numeric form.  Searching back through the instance docs of Testbed3 (GeoSciML v2 allowed text or numbers) indicates that text is the common format of "proportion" data, not numbers.

Can anyone remember the reasoning behind the change to numbers only for "proportion"?  Otherwise, I suggest we change the model to accommodate text values for "proportion".

Comments please,


Ollie Raymond

National Geological Maps and Data Standards Project
Geoscience Australia

Interoperability Working Group
IUGS Commission for the Management and Application of Geoscience Information

Address: GPO Box 378, Canberra, ACT, 2601, Australia | ABN: 80 091 799 039
Ph: +61 2 62499575 | Fax: +61 2 62479992 | Email: oliver.raymond at ga.gov.au | Google Map
Geoscience Australia web services  -  http://www.ga.gov.au/resources/applications/ogc-wms.jsp

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