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Understanding Microformats: Enhancing XHTML with Semantic Data

Explore the world of microformats, adding meaning to web content with "class" and "rel" attributes in existing XHTML. Learn how microformats bridge the gap between human-readable content and machine-understandable data. Discover the simplicity and power of microformats in web design.

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Understanding Microformats: Enhancing XHTML with Semantic Data

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  1. Microformats and hAtom David P. Janes Founder, BlogMatrix

  2. Microformats at 10,000 feet • existing XHTML presentation • PLUS “class” and “rel” attributes added to express semantics

  3. 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

  4. 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

  5. Microformats are • incremental • simple • humans first, machine second… • … but well-defined

  6. An example. This… <a href="http://tantek.com/">   Tantek Çelik </a> Technorati

  7. … becomes this … <div class="vcard"> <a class="url fn" href="http://tantek.com/">   Tantek Çelik </a> <div class="org">Technorati</div> </div>

  8. … and means this … BEGIN:VCARD VERSION:3.0 N:Çelik;Tantek FN:Tantek Çelik URL:http://tantek.com ORG:Technorati END:VCARD

  9. Example Microformats • hCalendar • hCard • RelNoFollow • RelTag • XFN • XOXO • … and hAtom

  10. 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…

  11. Microformats Design Patterns • class • rel • abbr • datetime

  12. 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

  13. hAtom • systematically identifies microcontent • weblogs • newspages • many uses • better searches • reblogging • printing… • easy to generate • just template work

  14. 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>

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