Re: [xml-dev] ANN: a portable data component -- length

[Stephen D Green <stephengreenubl@gmail.com>]

Here seem to be published the MathML rendering of SI Units in OWL format
Very nice!

http://semanticweb.org/wiki/Semantic_MathML/0.1#SI_Units

----
Stephen D Green



On 11 April 2011 10:18, Stephen D Green <stephengreenubl@gmail.com> wrote:
> UBL does publish the SI codes within the overall standard UOM codelist
> and packages it nicely as a genericode codelist here
> http://docs.oasis-open.org/ubl/os-UBL-2.0/cl/gc/cefact/UnitOfMeasureCode-2.0.gc
>
> but the codes aren't grouped and ordered like they are in MathML Units.
> MathML Units is probably what you want here, but do they publish the codelists
> in XML format?
>
> ----
> Stephen D Green
>
>
>
> On 11 April 2011 10:04, Stephen D Green <stephengreenubl@gmail.com> wrote:
>> Try MathML units
>> http://www.w3.org/TR/mathml-units/
>> ----
>> Stephen D Green
>>
>>
>>
>> On 11 April 2011 09:25, Michael Kay <mike@saxonica.com> wrote:
>>> On 10/04/2011 06:23, Toby Considine wrote:
>>>>
>>>> Interesting question, and one that goes to the heart of some of my current
>>>> obsessions...
>>>>
>>>> Is there a standard XSD of SI units for inclusion somewhere on the web
>>>>
>>>> And
>>>>
>>>> Is there a standard XSD of SI scale ( peta / tera / giga / mega/ ...) for
>>>> inclusion anywhere on the web?
>>>
>>> As you probably know given your affiliation, the decimal SI abbreviations
>>> (K, M, G etc, for 10^3, 10^6 etc) are defined in ISO 1000:2004, and the
>>> binary prefixes (Ki, Mi, Gi, which we should use for 2^10, 2^20 etc, but
>>> don't) are defined in ISO 80000-13:2008.
>>>
>>> But I'm not aware of any standard that maps these into XSD types.
>>>
>>> Michael Kay
>>> Saxonica
>>>>
>>>> tc
>>>>
>>>>
>>>>
>>>> "He who fights with monsters should look to it that he himself does not
>>>> become a monster, and if you stare long into an abyss, the abyss also
>>>> stares
>>>> into you."   - Fredrich Nietzche
>>>>
>>>> Toby Considine
>>>> TC9, Inc
>>>> TC Chair: oBIX&  WS-Calendar
>>>> TC Editor: EMIX, EnergyInterop
>>>> U.S. National Inst. of Standards and Tech. Smart Grid Architecture
>>>> Committee
>>>>
>>>>   Email: Toby.Considine@gmail.com
>>>> Phone: (919)619-2104
>>>> http://www.tcnine.com/
>>>> blog: www.NewDaedalus.com
>>>>
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: Liam R E Quin [mailto:liam@w3.org]
>>>> Sent: Saturday, April 09, 2011 9:41 PM
>>>> To: John Cowan
>>>> Cc: Costello, Roger L.; xml-dev@lists.xml.org
>>>> Subject: Re: [xml-dev] ANN: a portable data component -- length
>>>>
>>>> On Sat, 2011-04-09 at 15:55 -0400, John Cowan wrote:
>>>>>
>>>>> Liam R E Quin scripsit:
>>>>>
>>>>>> (I'd use metric/SI units in a program as they're easier to deal
>>>>>> with, and mixed-based ambiguity like 3 feet 7 inches doesn't occur)
>>>>>
>>>>> If you want to represent measurements, as distinct from counts, you
>>>>> need to provide the measurement in the units actually measured.
>>>>
>>>> +1 if they are actually being measured; one also has to give tolerance.
>>>>
>>>> On Pete Cordell's point, the name of the element - I used<measurement>
>>>> rather than<distance>  for no good or bad reason - one can't know a priori
>>>> whether the fact it's a measurement is more or less important than the
>>>> fact
>>>> it's a linear measurement through space, a distance. One is not
>>>> intrinsically more "semantic" than the other.  But we can know that
>>>> there's
>>>> a common danger in using element names for field names that come from some
>>>> non-XML source, as you might end up with non-XML chracters to deal with,
>>>> or
>>>> markup in the field name -- e.g. mathematical notation, or annotations
>>>> (Japanese ruby comes to mind).
>>>>
>>>> Someone else said that Normal Form is no gold standard - it isn't, but the
>>>> principle of not duplicating data still holds.  If Costelloitis takes
>>>> hold,
>>>> you should at least mark which of two values is primary and which was
>>>> derived.
>>>>
>>>> <jug id="jug">
>>>>   <capacity units="imperial_UK">4 gallons</capacity>
>>>>   <capacity units="US" derivedfrom="imperial_UK">4.5 gallons</capacity>
>>>>   <size>little</size>
>>>>   <colour>brown</colour>
>>>> </jug>
>>>>
>>>>
>>>> --
>>>> Liam Quin - XML Activity Lead, W3C, http://www.w3.org/People/Quin/
>>>> Pictures
>>>> from old books: http://www.fromoldbooks.org/
>>>>
>>>>
>>>>
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>>
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