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Microformats and hAtom. David P. Janes Founder, BlogMatrix. Microformats at 10,000 feet. existing XHTML presentation PLUS “class” and “rel” attributes added to express semantics. Microformats close up. augment existing presentation with semantic data

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Microformats and hatom

Microformats and hAtom

David P. Janes

Founder, BlogMatrix


Microformats at 10 000 feet
Microformats at 10,000 feet

  • existing XHTML presentation

  • PLUS “class” and “rel” attributes added to express semantics


Microformats close up
Microformats close up

  • augment existing presentation with semantic data

    • the (lower case) semantic web realized in XHTML

  • built on what people are doing, not what we think they should be doing

  • built from existing standards and composited from other microformats


Microformats are not
Microformats are not…

  • a new language or data format

  • a panacea, an open ended solution, the answer to all questions

  • a new approach to the web

  • scraping


Microformats are
Microformats are

  • incremental

  • simple

  • humans first, machine second…

  • … but well-defined


An example this
An example. This…

<a href="http://tantek.com/">   Tantek Çelik </a>

Technorati


Becomes this
… becomes this …

<div class="vcard">

<a class="url fn" href="http://tantek.com/">   Tantek Çelik

</a>

<div class="org">Technorati</div>

</div>


And means this
… and means this …

BEGIN:VCARD VERSION:3.0 N:Çelik;Tantek FN:Tantek Çelik URL:http://tantek.com ORG:Technorati END:VCARD


Example microformats
Example Microformats

  • hCalendar

  • hCard

  • RelNoFollow

  • RelTag

  • XFN

  • XOXO

  • … and hAtom


The microformat process
The Microformat Process

  • thoroughly document examples from the web

  • identify:

    • common semantic elements from examples

    • analogies to existing standards

    • the potential to reuse existing microformats

    • and reuse (or properly use) HTML elements

  • design…


Microformats design patterns
Microformats Design Patterns

  • class

  • rel

  • abbr

    • datetime


Why microformats and not something else
Why Microformats (and not something else)?

  • easy to produce

    • tweaking existing templates

    • same database

    • … still work needed on tools …

  • easy to consume

    • javascript

    • Greasemonkey

    • and from any language


Hatom
hAtom

  • systematically identifies microcontent

    • weblogs

    • newspages

  • many uses

    • better searches

    • reblogging

    • printing…

  • easy to generate

    • just template work


What does it look like
What does it look like?

<div class="feed">

<div class="entry">

<h3>...</h3>

<div class="content">...</div>

<address>...</div>

<abbr class="published" title="20051125T184500Z">..

</abbr>

</div>

</div>