microdata - Revision history

Tantek: Undo revision 70305 by Btrem (talk), actually no, it was abandoned and dead for nearly 4 years, then briefly re-adopted in 2017 and once again abandoned subsequently in less than a year afterwards

2020-12-14T21:44:17Z

Undo revision 70305 by Btrem (talk), actually no, it was abandoned and dead for nearly 4 years, then briefly re-adopted in 2017 and once again abandoned subsequently in less than a year afterwards

← Older revision		Revision as of 21:44, 14 December 2020
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	<dfn style="font-style:italic;font-weight:bold">microdata</dfn> is part of [[WHATWG]]'s [[HTML]] living specification that provides another way to embed [[microformats]] and [[poshformats]] vocabularies, and has been superseded by [[microformats2]].		<dfn style="font-style:italic;font-weight:bold">microdata</dfn> is part of [[WHATWG]]'s [[HTML]] living specification that provides another way to embed [[microformats]] and [[poshformats]] vocabularies, and has been superseded by [[microformats2]].

	microdata was ~~due to be~~ dropped by the W3C (and ~~was~~ therefore ~~no longer going to be~~ part of W3C [[HTML5]]) due to a lack of interest by anyone to edit the spec and keep it up to date.[http://lists.w3.org/Archives/Public/public-html-admin/2013Oct/0018.html] ~~However~~, ~~the W3C has~~ a ~~current~~ [https://www.w3.org/TR/microdata/ ~~microdata working draft~~].		microdata was explicitly dropped by the W3C in 2013 (and therefore not part of W3C [[HTML5]]) due to a lack of interest by anyone to edit the spec and keep it up to date.[http://lists.w3.org/Archives/Public/public-html-admin/2013Oct/0018.html]. It was later briefly re-adopted by W3C in [https://www.w3.org/TR/2017/WD-microdata-20170504/ 2017], updated a few times as recently as [https://www.w3.org/TR/2018/WD-microdata-20180426/ 2018], and then re-abandoned again in less than a year.

	== summary ==		== summary ==

Btrem: Corrects status of microdata at W3C (editors for microdata were found, so the standard survived. Rumours of its death were greatly exagerated.)

2020-12-14T21:37:01Z

Corrects status of microdata at W3C (editors for microdata were found, so the standard survived. Rumours of its death were greatly exagerated.)

← Older revision		Revision as of 21:37, 14 December 2020
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	<dfn style="font-style:italic;font-weight:bold">microdata</dfn> is part of [[WHATWG]]'s [[HTML]] living specification that provides another way to embed [[microformats]] and [[poshformats]] vocabularies, and has been superseded by [[microformats2]].		<dfn style="font-style:italic;font-weight:bold">microdata</dfn> is part of [[WHATWG]]'s [[HTML]] living specification that provides another way to embed [[microformats]] and [[poshformats]] vocabularies, and has been superseded by [[microformats2]].

	microdata was ~~explicitly~~ dropped by the W3C (and therefore ~~not~~ part of W3C [[HTML5]]) due to a lack of interest by anyone to edit the spec and keep it up to date.[http://lists.w3.org/Archives/Public/public-html-admin/2013Oct/0018.html]		microdata was due to be dropped by the W3C (and was therefore no longer going to be part of W3C [[HTML5]]) due to a lack of interest by anyone to edit the spec and keep it up to date.[http://lists.w3.org/Archives/Public/public-html-admin/2013Oct/0018.html] However, the W3C has a current [https://www.w3.org/TR/microdata/ microdata working draft].

	== summary ==		== summary ==

Aaronpk: Replace with {{DISPLAYTITLE:}}

2020-07-18T16:29:09Z

Replace <entry-title> with {{DISPLAYTITLE:}}

← Older revision		Revision as of 16:29, 18 July 2020
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	~~<entry-title>~~microdata~~</entry-title>~~		{{DISPLAYTITLE:microdata}}

	<dfn style="font-style:italic;font-weight:bold">microdata</dfn> is part of [[WHATWG]]'s [[HTML]] living specification that provides another way to embed [[microformats]] and [[poshformats]] vocabularies, and has been superseded by [[microformats2]].		<dfn style="font-style:italic;font-weight:bold">microdata</dfn> is part of [[WHATWG]]'s [[HTML]] living specification that provides another way to embed [[microformats]] and [[poshformats]] vocabularies, and has been superseded by [[microformats2]].

Tantek: microformats2 offers extension methods as well, link directly to how-to, provide brief textual examples

2014-10-16T20:08:52Z

microformats2 offers extension methods as well, link directly to how-to, provide brief textual examples

← Older revision		Revision as of 20:08, 16 October 2014
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	For common semantics on the web (e.g. [[hcard\|people+organizations]], [[hcalendar\|events]], [[hreview\|reviews]], [[hatom\|syndicated content]]), [[microformats]] are still simpler and easier than [[microdata]], and are already well implemented across numerous tools and services.		For common semantics on the web (e.g. [[hcard\|people+organizations]], [[hcalendar\|events]], [[hreview\|reviews]], [[hatom\|syndicated content]]), [[microformats]] are still simpler and easier than [[microdata]], and are already well implemented across numerous tools and services.

	For uncommon, rare, experimental, or one-off semantics, [[microdata]] offers a simpler and easier to understand solution than alternatives that use [[namespaces]] like XML/RDF/RDFa. Developers ~~should~~ consider [[microdata]] as another way of expressing semantics that they may otherwise use [[poshformats]] for.		For uncommon, rare, experimental, or one-off semantics:
			* [[microdata]] offers a simpler and easier to understand solution than alternatives that use [[namespaces]] like XML/RDF/RDFa. Developers may consider [[microdata]] as another way of expressing semantics that they may otherwise use [[poshformats]] for.
			* '''[[microformats2#VENDOR_EXTENSIONS\|microformats2 offers extension methods]]''' for adding both vendor extensions (e.g. h-vnd-* p-vnd-* etc.) and experimental extensions (e.g. h-x-* p-x-* etc.) and as such should be considered for another simpler way of expressing extended, one-off, custom, or site-specific semantics.
			Either way, such uncommon, rare, experimental, or one-off semantics in the wild should be documented so they may inform possible future microformats vocabularies.



	== history ==		== history ==

Tantek: update per dropped from W3C HTML5, use h-card, h-event

2014-08-24T23:27:47Z

update per dropped from W3C HTML5, use h-card, h-event

← Older revision		Revision as of 23:27, 24 August 2014
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	<entry-title>microdata</entry-title>		<entry-title>microdata</entry-title>

	<dfn style="font-style:italic;font-weight:bold">microdata</dfn> is ~~an extension to~~ [[~~HTML5~~]] that provides another way to embed [[microformats]] and [[poshformats]] vocabularies.		<dfn style="font-style:italic;font-weight:bold">microdata</dfn> is part of [[WHATWG]]'s [[HTML]] living specification that provides another way to embed [[microformats]] and [[poshformats]] vocabularies, and has been superseded by [[microformats2]].

	~~Specification:~~ http://~~www~~.w3.org/TR/~~microdata~~/		microdata was explicitly dropped by the W3C (and therefore not part of W3C [[HTML5]]) due to a lack of interest by anyone to edit the spec and keep it up to date.[http://lists.w3.org/Archives/Public/public-html-admin/2013Oct/0018.html]

	== summary ==		== summary ==
	microdata consists of a set of attribute extensions to [[~~HTML5~~]]:		microdata consists of a set of attribute extensions to [[HTML]]:

	* <code>itemprop</code> attribute is a more specific version of <code>class</code>, for field names		* <code>itemprop</code> attribute is a more specific version of <code>class</code>, for field names
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	microdata didn't happen overnight. Much of the design and simplicity of microdata is based on years of work on microformats [[principles]] deliberately designed to help guide and create simpler, more usable and accessible solutions. It happened so quickly because Ian Hickson designed microdata based upon years of work by both the microformats community, and the concept of using reverse-domain-names as unique qualifiers (popularized perhaps by Java programming language naming conventions).		microdata didn't happen overnight. Much of the design and simplicity of microdata is based on years of work on microformats [[principles]] deliberately designed to help guide and create simpler, more usable and accessible solutions. It happened so quickly because Ian Hickson designed microdata based upon years of work by both the microformats community, and the concept of using reverse-domain-names as unique qualifiers (popularized perhaps by Java programming language naming conventions).

	~~== potential ==~~		most recently, lessons learned from the microdata parsing/data model were incorporated into [[microformats2]] which now serves as a functional replacement thanks to the [[microformats2-parsing]] specification.
	~~I think there are some very clever ideas in general purpose~~ microdata~~, it has a lot of potential, and despite being~~ a ~~bit more abstract than microformats, still much simpler/easier~~ to ~~explain to web designers/developers/programmers than any form of RDF.~~

	~~General microdata may be~~ the ~~right solution to the general purpose data representation problem that microformats specifically chose not to work on.~~

	- [[~~User:Tantek\|Tantek~~]] ~~17:42, 22 August 2009 (UTC)~~

	== parsers and tools ==		== parsers and tools ==
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	=== microdata vCard vocabulary ===		=== microdata vCard vocabulary ===
	Formerly documented as a separate specification at <nowiki>http://dev.w3.org/html5/mdvcard/</nowiki>, the microdata vCard vocabulary is currently available as [http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#vcard part of WHATWG additions to ~~HTML5].~~		Formerly documented as a separate specification at <nowiki>http://dev.w3.org/html5/mdvcard/</nowiki>, the microdata vCard vocabulary is currently available as [http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#vcard part of WHATWG additions to HTML].

	* Recommendation: use [[hCard]] directly instead, taking into account:
	** the [[hcard-faq\|hCard FAQ]] and
	** [[hcard-issues-resolved\|resolved]]+[[hcard-issues-closed\|closed issues]].

	~~hCard 1.0.1 (under development) is incorporating these errata~~.		* Recommendation: use [[h-card]] directly instead.

	~~Using hCard will~~ produce Google Rich Snippets, ~~as well as work with~~ [[~~yahoo-search~~]]~~, and~~ [[~~Firefox]] [[Operator~~]] ~~and other tools~~.		If you're specifically looking to produce Google Rich Snippets, use [[hCard]] in addition to [[h-card]].

	Note:		Note:
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	=== microdata vEvent vocabulary ===		=== microdata vEvent vocabulary ===
	Formerly documented as a separate specification at <nowiki>http://dev.w3.org/html5/mdvevent/</nowiki>, the microdata vEvent vocabulary is currently available as [http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#vevent part of WHATWG additions to ~~HTML5].~~		Formerly documented as a separate specification at <nowiki>http://dev.w3.org/html5/mdvevent/</nowiki>, the microdata vEvent vocabulary is currently available as [http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#vevent part of WHATWG additions to HTML].

	* Recommendation: use [[hCalendar]] directly instead, taking into account:
	** the [[hcalendar-faq\|hCalendar FAQ]] and
	** [[hcalendar-issues-resolved\|resolved]]+[[hcalendar-issues-closed\|closed issues]].

	~~hCalendar 1~~.~~0.1 (under development) is incorporating these errata.~~		* Recommendation: use [[h-event]] directly instead.

	~~Using hCalendar will~~ produce Google Rich Snippets, ~~as well as work with~~ [[~~yahoo-search~~]]~~, and~~ [[~~Firefox]] [[Operator~~]] ~~and other tools~~.		If you're specifically looking to produce Google Rich Snippets, use [[hCalendar]] in addition to [[h-event]].

	Note:		Note:
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	</head>		</head>
	<body>		<body>
	<section itemtype="http://microformats.org/profile/~~hcard~~" itemscope>		<section itemtype="http://microformats.org/profile/h-card" itemscope>
	<h1 itemprop="fn">Corey Mwamba</h1>		<h1 itemprop="name">Corey Mwamba</h1>
	~~<div itemprop="adr" itemscope~~>
	<p itemprop="street-address">56 Nowhere Road</p>		<p itemprop="street-address">56 Nowhere Road</p>
	<p itemprop="locality">Nowhere</p>		<p itemprop="locality">Nowhere</p>
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	</source>		</source>

	And here's an simple ~~hCalendar~~ example:		And here's an simple [[h-event]] example:

	<source lang="html4strict">		<source lang="html4strict">
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	</head>		</head>
	<body>		<body>
	<div itemtype="http://microformats.org/profile/~~hcalendar~~" itemscope>		<div itemtype="http://microformats.org/profile/h-event" itemscope>
	<a itemprop="url" href="http://conferences.oreillynet.com/pub/w/40/program.html">		<a itemprop="url" href="http://conferences.oreillynet.com/pub/w/40/program.html">
	http://conferences.oreillynet.com/pub/w/40/program.html		http://conferences.oreillynet.com/pub/w/40/program.html
	</a>		</a>
	<span itemprop="summary">Web 2.0 Conference</span>:		<span itemprop="summary">Web 2.0 Conference</span>:
	<time itemprop="~~dtstart~~" datetime="2005-10-05">October 5</time>-		<time itemprop="start" datetime="2005-10-05">October 5</time>-
	<time itemprop="~~dtend~~" datetime="2005-10-07">7</time>,		<time itemprop="end" datetime="2005-10-07">7</time>,
	at the <span itemprop="location">Argent Hotel, San Francisco, CA</span>		at the <span itemprop="location">Argent Hotel, San Francisco, CA</span>
	</div>		</div>

TomMorris: adding parsers and tools section, mostly borrowed from schema.rdfs.org; copied here so it can be kept up-to-date

2013-01-15T17:07:42Z

adding parsers and tools section, mostly borrowed from schema.rdfs.org; copied here so it can be kept up-to-date

← Older revision		Revision as of 17:07, 15 January 2013
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	- [[User:Tantek\|Tantek]] 17:42, 22 August 2009 (UTC)		- [[User:Tantek\|Tantek]] 17:42, 22 August 2009 (UTC)

			== parsers and tools ==
			[http://schema.rdfs.org/tools.html schema.rdfs.org has a list of tools].

			* Python: [https://github.com/edsu/rdflib-microdata rdflib-microdata]
			* Ruby: [https://github.com/gkellogg/rdf-microdata RDF::Microdata]
			* Ruby: [http://lawrencewoodman.github.com/mida/ Mida]
			* PHP: [https://github.com/linclark/MicrodataPHP MicrodataPHP]
			* JavaScript (jQuery): [https://gitorious.org/microdatajs/ MicrodataJS]
			* Java: [https://any23.apache.org/ Any23]

	== microdata vocabularies ==		== microdata vocabularies ==

Epicurious: /* microformats in microdata */

2010-10-04T06:11:15Z

microformats in microdata

← Older revision		Revision as of 06:11, 4 October 2010
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	<section itemtype="http://microformats.org/profile/hcard" itemscope>		<section itemtype="http://microformats.org/profile/hcard" itemscope>
	<h1 itemprop="fn">Corey Mwamba</h1>		<h1 itemprop="fn">Corey Mwamba</h1>
	<div itemprop="adr">		<div itemprop="adr" itemscope>
	<p itemprop="street-address">56 Nowhere Road</p>		<p itemprop="street-address">56 Nowhere Road</p>
	<p itemprop="locality">Nowhere</p>		<p itemprop="locality">Nowhere</p>

Tantek: Reverted edits by Demver5 (Talk) to last version by Epicurious

2010-08-25T11:46:14Z

Reverted edits by Demver5 (Talk) to last version by Epicurious

← Older revision		Revision as of 11:46, 25 August 2010
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	* [[principles]]		* [[principles]]
	* [[XMDP]]		* [[XMDP]]


	~~==Related Links==~~

	~~[http://www.cellulite.co.uk/advice/spa-treatment/mesotherapy '''mesotherapy''']~~

Demver5: /* see also */

2010-08-21T11:54:56Z

Epicurious: /* microformats in microdata */ Correcting HTML5

2010-08-18T07:21:42Z

microformats in microdata: Correcting HTML5

← Older revision		Revision as of 07:21, 18 August 2010
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	</head>		</head>
	<body>		<body>
	<section ~~item="vcard"~~ itemtype="http://microformats.org/profile/hcard" itemscope>		<section itemtype="http://microformats.org/profile/hcard" itemscope>
	<h1 itemprop="fn">Corey Mwamba</h1>		<h1 itemprop="fn">Corey Mwamba</h1>
	<div itemprop="adr">		<div itemprop="adr">
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	</head>		</head>
	<body>		<body>
	<div ~~item="vevent"~~ itemtype="http://microformats.org/profile/hcalendar" itemscope>		<div itemtype="http://microformats.org/profile/hcalendar" itemscope>
	<a itemprop="url" href="http://conferences.oreillynet.com/pub/w/40/program.html">		<a itemprop="url" href="http://conferences.oreillynet.com/pub/w/40/program.html">
	http://conferences.oreillynet.com/pub/w/40/program.html		http://conferences.oreillynet.com/pub/w/40/program.html

← Older revision		Revision as of 11:54, 21 August 2010
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	* [[principles]]		* [[principles]]
	* [[XMDP]]		* [[XMDP]]


			==Related Links==

			[http://www.cellulite.co.uk/advice/spa-treatment/mesotherapy '''mesotherapy''']