View source for events/2012-07-14-open-web-camp-4

<entry-title>Open Web Camp IV</entry-title>
__TOC__
One of several microformats [[events]].
 
<div class="event-page h-event vevent">
== Details ==
;When
:<span class="dt-start dtstart"><span class="value">2012-07-14</span> from <span class="value">9:00</span></span> to <span class="dt-end dtend"><span class="value">18:00</span></span>
;Where
:<span class="p-location location h-card vcard"><span class="p-name fn p-org org">PayPal</span> Town Hall, <span class="h-adr adr"><span class="p-street-address street-address">2161 N 1st St.</span>, <span class="p-locality locality">San Jose</span>, <abbr class="p-region region" title="California">CA</abbr></span></span>
;What
:<span class="p-summary summary">Open Web Camp IV</span>
;Web
:<span class="u-url url">http://lanyrd.com/2012/openwebcamp-iv/</span>
:<span class="u-url url">http://lanyrd.com/2012/openwebcamp-iv/swrty</span>
:<span class="u-url url">http://plancast.com/p/b9be/open-web-camp-iv</span>
<!-- :<span class="u-url url">https://www.facebook.com/events/310026722412259/</span>
; Upcoming -->
 
'''[http://dev.h2vx.com/ics/microformats.org/wiki/events/2012-07-14-open-web-camp-4 Add this event to your calendar]''' http://www.boogdesign.com/images/buttons/microformat_hcalendar.png

== Open Web Camp IV ==
<div class="p-description description">
Open Web Camp IV (#owc4) - featuring a session on [[microformats-2]]:

<div class="h-event vevent">
* <time class="dt-start dtstart" datetime="2012-07-14T09:30:00">9:30</time> - <time class="dt-end dtend" datetime="2012-07-14T10:30:00">10:30am</time> <span class="p-name summary">[[HTML5]] and microformats 2 - the next evolutionary step for web data</span>
** location: <span class="p-location location">Room Fireside B, PayPal Town Hall</span> 
** <span class="u-url url">http://openwebcamp.org/events/56</span>
** <span class="u-url url">http://plancast.com/p/bu8p/html5-microformats-20-tantek</span>
</div>

<div class="p-description description">
microformats are published on millions of sites, providing a standard simple API for the data on those pages with no additional URLs, file formats, callbacks etc. Similar approaches have been tried as well (e.g. RDFa, microdata).

Lessons learned over 8 years have been incorporated into new HTML5 elements and microformats 2.0 for better accessibility, more efficient markup, improved semantics and a direct mapping to JSON for API and other data consumers.
</div>
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== Tags ==
Use the following tags on related content (blog posts, photos, [http://twitter.com tweets]):
tags:
<kbd class="tags" style="display:block">
<span class="p-category category">'''html5-microformats2'''</span> 
<span class="p-category category">html5</span> 
<span class="p-category category">microformats2</span> 
<span class="p-category category">microformats</span> 
<span class="p-category category">openwebcamp</span> 
<span class="p-category category">owc4</span> 
<span class="p-category category">san-jose</span> 
<span class="p-category category">microformats-session</span> 
<span class="p-category category">''microformats-session-2012-07-14''</span>
<!-- <span class="p-category category">''upcoming:event=00000000''</span> <!-- Add/update this tag when you create the respective upcoming.org event -->
</kbd>
 
If you use Twitter, mention '''@microformats''' in tweets about the event, and track them on [http://search.twitter.com/search?q=microformats Twitter Search].
 
== Attendees ==
* [[User:Tantek|Tantek Çelik]]
* … add yourself here!
 
== Notes ==
Presentation slides:
* http://tantek.com/presentations/2012/07/html5-microformats2/

Topics:
* [[HTML5]]
* [[microformats-2]]
* ...

Notes taken during the session on the etherpad: https://etherpad.mozilla.org/owc4
* hashtag: #owc4
* http://openwebcamp.org

More notes here:
* http://manymedia.com/2012/07/microformats/

09:30am
HTML5 and microformats 2 - the next evolutionary step for web data
* http://openwebcamp.org/events/56
* µformats 7 years old
* slide breakdown of structured microdata in 2012 (need URL)
** µformats dominate breakdown
** maybe ~25% RDFa
** maybe ~5% microdata
** xx% of web using structured data
 
* Role of simplicity and openness
** one person, TBL
** released HTML and HTTP unencumbered
** All µformats work is contributed to public domain under a Creative Commons Type 0 (CC0) license http://creativecommons.org/publicdomain/zero/1.0/
*** Means that work is not lost if microformats.org goes away
*** Multiple Translations of specifications and documentation completed and underway
 
* Why Microformats?
** Futureproofing 
** Serendipity (making it easier for others coming after you)
** less-work (well known, reusable class names)
** site features/UI (vcard and ical formats)
** cheap Don't Repeat Yourself (DRY) API instead of repeating content via e.g. XML/JSON endpoint or response type
** search results
 
* Paring Microformats Examples
** [[hAtom]]
*** Readablity (consuming hAtom)
*** WordPress (hAtom already in default template)
** [[hCard]]
*** consumed by search engines
** [[hproduct]]
*** consumed by search engines
** [[hRecipe]]
*** Food sites and Google search
** [[hResume]]
*** Guardian Jobs
*** Madgex (UK) wrote a client to consume
** [[hReview]]
** [[rel-me]]
*** Rel Value Wiki - [[existing-rel-values]]
*** Smallest microformat 'rel="me"'
** [[rel-author]]
*** Google consumes this and tries to match to Google profiles
** [[rel-license]]
 
* 7 Years of Alternative Approaches
** Structured Blogging
** Google Base (was this Metabase before? no - nothing to do with it)
** ...
 
* 3 Lessons Learned
** Accessibility: Humans First
*** Originally using title attribute, which interfered with screen readers
*** Any use of title attribute must be human readable
*** Value Class Pattern instead
** Class Collisions and Losses
*** common class names such as 'summary' and 'description'
*** updates remove and rewrite markup
*** introducing prefixed class names in [[microformats2]]
**** Makes it more obvious
**** 'h-', 'p-', 'u-', 'dt-', 'e-'
** Still too much markup needed
*** Too many extra spans and divs
**** leads to non-trivial error rates
*** Solutions
**** flat sets of properties, required properties don't work in practice (90210 problem)
**** imply common properties (name, url, photo) 
***** <pre><span class="h-card">Jane User</span></pre>
 
* [[HTML5]] and Data
** Data Tables
*** See OWC Schedule Page
*** Schedule table, each row implies the same time-slot, leverage that
** time and date elements
*** one time element instead of three spans
*** "If a five-year-old can do ISO Dates, anyone can!"
 
* microformats2 http://microformats.org/wiki/microformats-2
** prefixed class names
** flat sets of optional properties
** single-class markup for common uses
 
(Historical Note: Tantek and Kevin Marks gave a very early microformats [[presentation]] here at EBay almost 8 years ago!) - "Can your website be your API?"
* http://www.svforum.org/index.cfm?fuseaction=Calendar.eventDetail&eventID=11142
* http://tantek.com/presentations/20040928sdforumws/semantic-xhtml.html


Questions:
* How many write HTML? (~ 75% of people in the room)
* How many have written/published microformats? (~ 50% of people in the room)
* what are the most common mistakes made when implementing microformats?
** misspelling root class name, e.g. hcard instead of vcard (note: fixed in microformats2 - all root class names are same as microformat, e.g. h-card, h-event etc.)
** miscapitalizaing root class name, e.g. hReview instead of hreview
** omitting "n" property in hCard when specifying "given-name", "family-name" (note: fixed in microformats2 - flat set of properties, no more "n" property in h-card)
* what are the most innovative ways microformats are being used?
* Guerrilla microformats, what are your experiences with just-adding-them
* Data Attribute instead of class names? +1
** data-* attributes are for site-specific data and script libraries only - not semantic markup, see FAQ: http://microformats.org/wiki/html5#data_attributes
* What was the name of the hCalendar to iCal converter?
** http://H2VX.com - see [[H2VX]]
* What about date and time elements with ISO datetime attrs, and use JS to fill element with locale time? 
* How many have used Schema.org? (only 2 people in room)
** Which vocabularies? (Product, Article - could use [[hProduct]] and [[hAtom]] instead)
 
* Is there a hHiringPost? ;-) (maybe an hJob or hCareer format?)
** There's an [[hListing]] draft and a related [[job-listing]] effort as well - take a look and provide feedback!
** http://microformats.org/wiki/hlisting
** http://microformats.org/wiki/job-listing

== Photographs ==
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* Search for photographs from this event on Flickr: [http://flickr.com/photos/tags/microformats-meetup-2012-07-14 Photographs tagged microformats-meetup-2012-07-14] or for [http://flickr.com/photos/tags/microformats-meetup all photographs from microformats meetups].

[https://twitter.com/frontendstuff/status/224192742719365122 https://p.twimg.com/Axx-HJdCIAEt-_l.jpg]

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== Articles and Blog Posts ==
Articles and blog posts following up on the meetup. Add a link to your post in the list below:
 
* …
 
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Also, find posts on this meetup on [http://blogsearch.google.co.uk/blogsearch?q=microformats-meetup-2012-07-14 Google Blog Search] or [http://technorati.com/search/microformats-meetup-2012-07-14 Technorati].
 
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