Re: URIs / Ontology for Physical Units and Quantities

Hi Wes,
sorry for a very late reply:

Actually you could easily use schema:QuantitativeValue for both time and volume, with SEC as the unit code for t and LTR as the unit code for liters, and link both via schema:valueReference, or better, and owl:subProperty thereof.

For the principle, see

     http://wiki.goodrelations-vocabulary.org/Documentation/Structured_values_and_value_references


schema:QuantativeValues supports all UN/CEFACT Common Codes for units, which should cover all you need:


     http://wiki.goodrelations-vocabulary.org/Documentation/UN/CEFACT_Common_Codes

(Mind the full list in the public Excel files, the page just highlights a small subset.)

Best wishes / Mit freundlichen Grüßen

Martin Hepp

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martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

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> On 01 May 2015, at 13:45, ☮ elf Pavlik ☮ <perpetual-tripper@wwelves.org> wrote:
> 
> Hi Wes,
> 
> On 01/26/2014 07:20 AM, Wes Turner wrote:
>> Say I am trying to share a tabular dataset. [1] There's metadata for
>> the Dataset, and there's metadata for the particular columns (which
>> applies to the particular data items).
>> 
>> For example:
>> 
>> t   volume (liters)
>> -----------------
>> 1  1
>> 2  0.7
>> 3  0.5
>> 4  0.3
>> 5  0.1
>> 
>> Questions
>> ===========
>> # Is there (a good) way to specify these units and quantities (in
>> addition to XSD datatypes)?
> You might like to check out
> * https://iotdb.org/pub/iot-unit.html
> 
> Cheers!
> 
>

Received on Wednesday, 6 May 2015 09:26:36 UTC