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<entry-title>Measure microformat research</entry-title>

<div style="float:right;margin-left:1em">__TOC__</div>

This page is for researching and developing a [[measure]] microformat. Per the [[process]]:
* [[measure-examples]]
* [[measure-formats]]
* [[measure-brainstorming]]

== The problem ==

Measures (e.g. weights, sizes, temperatures) occur frequently on the Web, they are constituted of a value a unit-measure and, in scientific and technical contexts, an experimental uncertainty. These 3 elements should be marked-up consistently across websites so that they can be easily identified and acted upon (export, compute, convert) in collaborative distributed applications.

Unit-measures differ from locale to locale (e.g. Fahrenheit vs. Celsius, pound versus Kilogram), making comparison and matching of offerings difficult.

The Measurement microformat will enable unambiguous description of physical quantities and thus provide a solid ground for data sharing and automation in many areas.

== Next Steps ==
* clean-up [[measure-examples]] to refer to <em>current</em> real world examples
* update [[measure-formats]] with formats from other recent efforts such as schema.org
* massive clean-up of [[measure-brainstorming]]

== Related microformats ==
* [[hcalendar]] can provide a complete quantitative description of a natural event (for example an earthquake) occurring at a specified time (dtstart/dtend) and location (embedded [[geo]]), by just embedding measured physical quantities in the 'descrition' span.
* [[job-listing]] can use time measure for specify per what period of time the salary is for.
* [[hlisting]] product dimensions; weight/mass; time period (as above); price.
* [[directions-examples]] can use length measure for mileage and time to go from one point to the next.
* [[recipe-examples]] can use weight, volume and time measure for ingredients and preparation time.
* [[currency]] can be viewed as a measurement unit, or as a component of a measurement unit, as in $ per hour.

==References==

*[http://en.wikipedia.org/wiki/Measurement Measurement in scientific/technical contexts (Wikipedia)]
*[http://en.wikipedia.org/wiki/Scientific_Notation Scientific notation for Physical quantities (Wikipedia)]
*[http://www.bipm.org/en/si/ International System of Units (SI)]
**[http://en.wikipedia.org/wiki/International_System_of_Units (Wikipedia)]
*[http://video.google.com/videoplay?docid=5871900250712259806 the Semantic ChemicalWeb] (GoogleEng presentation, Peter Murray-Rust)
*[http://www.slideshare.net/dder/the-new-science-bangalore-edition the New e-Science]  (SlideShare, David De Roure)
*[http://en.wikipedia.org/wiki/Template:Convert Wikipedia's "convert" template]
*[http://www.cs.tut.fi/~jkorpela/chars/si.html Jukka Korpela - Characters in SI notations]

==See also==
{{measure-related-pages}}

Templates used on this page:

Template:measure-related-pages

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