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[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: ANN: a portable data component -- length
 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: 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/ >> >> >> >> _______________________________________________________________________ >> >> XML-DEV is a publicly archived, unmoderated list hosted by OASIS >> to support XML implementation and development. To minimize >> spam in the archives, you must subscribe before posting. >> >> [Un]Subscribe/change address: http://www.oasis-open.org/mlmanage/ >> Or unsubscribe: xml-dev-unsubscribe@lists.xml.org >> subscribe: xml-dev-subscribe@lists.xml.org >> List archive: http://lists.xml.org/archives/xml-dev/ >> List Guidelines: http://www.oasis-open.org/maillists/guidelines.php >> >> >> >> _______________________________________________________________________ >> >> XML-DEV is a publicly archived, unmoderated list hosted by OASIS >> to support XML implementation and development. To minimize >> spam in the archives, you must subscribe before posting. >> >> [Un]Subscribe/change address: http://www.oasis-open.org/mlmanage/ >> Or unsubscribe: xml-dev-unsubscribe@lists.xml.org >> subscribe: xml-dev-subscribe@lists.xml.org >> List archive: http://lists.xml.org/archives/xml-dev/ >> List Guidelines: http://www.oasis-open.org/maillists/guidelines.php >> >> > > > _______________________________________________________________________ > > XML-DEV is a publicly archived, unmoderated list hosted by OASIS > to support XML implementation and development. To minimize > spam in the archives, you must subscribe before posting. > > [Un]Subscribe/change address: http://www.oasis-open.org/mlmanage/ > Or unsubscribe: xml-dev-unsubscribe@lists.xml.org > subscribe: xml-dev-subscribe@lists.xml.org > List archive: http://lists.xml.org/archives/xml-dev/ > List Guidelines: http://www.oasis-open.org/maillists/guidelines.php > > 
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