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	<title>Learning the World &#187; i18n</title>
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		<title>Accessible Drop-Down Menus</title>
		<link>http://learningtheworld.eu/2008/accessible-drop-down-menus/</link>
		<comments>http://learningtheworld.eu/2008/accessible-drop-down-menus/#comments</comments>
		<pubDate>Mon, 11 Aug 2008 08:00:09 +0000</pubDate>
		<dc:creator><![CDATA[Martin Kliehm]]></dc:creator>
				<category><![CDATA[accessibility]]></category>
		<category><![CDATA[usability]]></category>
		<category><![CDATA[web development]]></category>
		<category><![CDATA[ageing]]></category>
		<category><![CDATA[Ajax]]></category>
		<category><![CDATA[aria]]></category>
		<category><![CDATA[arrow keys]]></category>
		<category><![CDATA[assistive technologies]]></category>
		<category><![CDATA[AT]]></category>
		<category><![CDATA[best practices]]></category>
		<category><![CDATA[blur]]></category>
		<category><![CDATA[buffer]]></category>
		<category><![CDATA[CSS]]></category>
		<category><![CDATA[DHTML]]></category>
		<category><![CDATA[drop-down]]></category>
		<category><![CDATA[event]]></category>
		<category><![CDATA[event delegation]]></category>
		<category><![CDATA[fly-out]]></category>
		<category><![CDATA[focus]]></category>
		<category><![CDATA[Hick's Law]]></category>
		<category><![CDATA[i18n]]></category>
		<category><![CDATA[image replacement]]></category>
		<category><![CDATA[internationalization]]></category>
		<category><![CDATA[JavaScript]]></category>
		<category><![CDATA[keyboard access]]></category>
		<category><![CDATA[menu]]></category>
		<category><![CDATA[menulist]]></category>
		<category><![CDATA[multi-level menus]]></category>
		<category><![CDATA[navigation]]></category>
		<category><![CDATA[pull-down]]></category>
		<category><![CDATA[role]]></category>
		<category><![CDATA[scalability]]></category>
		<category><![CDATA[screen reader]]></category>
		<category><![CDATA[screenreader]]></category>
		<category><![CDATA[sIFR]]></category>
		<category><![CDATA[tab order]]></category>
		<category><![CDATA[text resize]]></category>
		<category><![CDATA[WCAG]]></category>
		<category><![CDATA[web 2.0]]></category>

		<guid isPermaLink="false">http://learningtheworld.eu/?p=171</guid>
		<description><![CDATA[A few days ago a co-worker asked if <strong><acronym title="Dynamic HTML">DHTML</acronym> drop-down menus pose a problem with accessibility</strong>. Since the Web Content Accessibility Guidelines 1.0 (<acronym>WCAG</acronym>) declared all JavaScript <em>evil</em> in 1999, assistive technologies (<acronym>AT</acronym>) have made significant progress. So we cannot condemn pull-down menus altogether, but there are various reasons to keep an eye on them buggers.&#160;[&#8230;]]]></description>
				<content:encoded><![CDATA[<p>A few days ago a co-worker asked if <strong><acronym title="Dynamic HTML">DHTML</acronym> drop-down menus pose a problem with accessibility</strong>. Since the Web Content Accessibility Guidelines 1.0 (<acronym>WCAG</acronym>) declared all JavaScript <em>evil</em> in 1999, assistive technologies (<acronym>AT</acronym>) have made significant progress. So we cannot condemn pull-down menus altogether, but there are various reasons to keep an eye on them buggers:</p>

<ol>
<li id="ageing"><p><strong>Older people</strong> have difficulties with drop-down and <a href="http://www.w3.org/TR/wai-age-literature/">multi-level menus</a>, because their manual dexterity, eye-hand coordination and space perception decreases. Also some move the mouse when clicking, or tremble, hence it&#8217;s more likely they slip off the menu. Hell, that happens to <em>me</em> frequently!</p>
<p>However, did you notice the Windows Start Menu is more forgiving when you slip off an item? There&#8217;s a little delay before the secondary level is hidden. Perhaps we need an event-capturing script tolerating a slip from the menu rather than the immediate reaction of the <code>mouseout</code> event.</p></li>
<li id="hicks-law"><p>Nested menus are <strong>more complex</strong>. According to <a href="http://en.wikipedia.org/wiki/Hick%27s_law">Hick&#8217;s Law</a> orientation in a multi-level menu can take longer than multiple clicks in a flat menu with good information architecture. See an <a href="http://learningtheworld.eu/2007/usability-analysis/#hicks-law">earlier article</a> for the math.</p></li>
<li id="keyboard-access"><p>The navigation must be <strong>accessible by keyboard alone</strong>. The result should be the same, whether you hover over an item or tab to it. So check for the <code>focus</code> event and <acronym title="Cascading Style Sheets">CSS</acronym> pseudo-class. Don&#8217;t forget to test backwards tabbing (<kbd>shift tab</kbd>). By the way, mobile devices have no mouse either&hellip;</p>
<p>The <strong>tab order</strong> should be consistent and logical, <abbr>i.e.</abbr> not jumping around on a page. Also the focused item should be visible, for example highlighted with the default 1px dotted border some browsers draw around it. Some people think this is ugly and remove the default border. That is a no-no.</p>
<p>And if you <em>really</em> want desktop behavior, add support for the <strong>arrow keys</strong> (<code>event.keyCode</code> 37-40). Keep in mind though that screen readers have predefined functions for the arrow keys in combination with the <kbd>ctrl</kbd>, <kbd>shift</kbd>, or <kbd>alt</kbd> keys. In JavaScript those keys can be detected with the <code>event.ctrlKey</code>, <code>event.altKey</code>, and <code>event.shiftKey</code> properties. Also <strong>crossbrowser event delegation</strong> for <code>focus</code> or <code>blur</code> events can be a bitch, thankfully <a href="http://www.quirksmode.org/blog/archives/2008/04/delegating_the.html"><acronym title="Peter-Paul Koch">PPK</acronym> has a solution</a>.</p></li>
<li id="skip-content"><p>Users of <acronym>AT</acronym> should have means to <strong>skip content</strong>. That&#8217;s possible with semantic markup: a menu as (nested) list(s) enables them to jump to the next block. Also there should be <em>a few</em> skip links at the beginning of the code pointing to important sections on the page, such as content, navigation, or search. Mobile users also profit from that technique (try surfing eBay with Opera Mini <img src="http://learningtheworld.eu/wp-includes/images/smilies/icon_wink.gif" alt=";)" class="wp-smiley" />  ).</p></li>
<li id="links"><p><strong>Pages never link to themselves.</strong> When I click on a link (the menu being no exception) I expect to land on a <em>different</em> page. Therefore it&#8217;s confusing to land on the same page. This happened to me recently when I was filling out a form on my mobile phone and got the same page with an error message. It took me a while to realize where I was. It&#8217;s the same whether you have a tiny screen or a low screen resolution to see things larger when you are visually impaired: you only see a small part of the page, so it&#8217;s hard to realize when something unexpected happens.</p></li>
<li id="aria"><p>You can add some semantic sugar with the <strong><acronym title="Accessible Rich Internet Applications">ARIA</acronym> <code>role</code></strong> property. In this case <code>&lt;ul role=&quot;navigation&quot;&gt;</code> would be appropriate. I strongly encourage you to use <acronym>ARIA</acronym> as it is widely supported by browsers and screen readers, enhances a disabled user&#8217;s experience, and doesn&#8217;t break old browsers. A most <a href="http://dev.opera.com/articles/view/introduction-to-wai-aria/">recent introduction</a> has been written by Gez Lemon for the Opera Developer Community.</p></li>
<li id="buffer"><p>If a second level navigation is initially hidden with <code>display:none</code> it won&#8217;t be in the <strong>screen reader buffer</strong>. Therefore off-screen positioning is a better idea, else you need to <a href="http://juicystudio.com/article/improving-ajax-applications-for-jaws-users.php">update the buffer</a> by writing random values into a hidden <code>input</code> field.</p></li>
<li id="scaling"><p>A common problem in menus is <strong>limited horizontal space</strong>. Text should be scalable, and it must not jut-out into other page elements when it is <strong>enlarged</strong>. Even normal text can break a narrow menu when you think of internationalization. In German there are many composite words. While building a website for a competing brand I came across a menu item on the Philips website for &ldquo;male grooming.&rdquo; The German word &bdquo;<span xml:lang="de" lang="de">Körperhaarpflegesystem</span>&rdquo; is guaranteed to blow every menu! <img src="http://learningtheworld.eu/wp-includes/images/smilies/icon_smile.gif" alt=":)" class="wp-smiley" /> </p>
<p>Another common problem that prevents scaling in menus are <strong>text graphics</strong>. I know marketing just <em>loves</em> to see the corporate font in the main menu, but text in images can&#8217;t be scaled, people with visual impairments can&#8217;t change text and background colors for higher contrast, and <strong>Flash Image Replacement</strong> like sIFR still has <a href="http://virtuelvis.com/archives/2005/04/i-hate-sifr">accessibility issues</a>, is known to <a href="http://www.456bereastreet.com/archive/200712/choose_an_accessible_image_replacement_method/#comment26">distort fonts</a>, is <a href="http://www.mezzoblue.com/archives/2004/10/26/sifr/">CPU intensive and slow</a>. The bottom line is: don&#8217;t use text as images, make textual information text.</p></li>
</ol>

<p id="technical-issues">So much for accessibility. Besides there are a few <strong>technical issues</strong> to consider: mobile devices often have problems with JavaScript or with layers. Some proxies in large companies <a href="http://www.robertnyman.com/2006/04/25/an-important-lesson-learned-about-ajax-and-accessibility/">filter JavaScript</a> for security reasons, so you can&#8217;t rely on the ubiquitous availability, your script has to be unobtrusive, and you can&#8217;t rely on <code>noscript</code> either. Don&#8217;t even think of creating a menu from JavaScript arrays.</p>

<p>Moreover there&#8217;s a well-known bug in <acronym title="Internet Explorer">IE</acronym>6 responsible for showing <code>select</code> lists always in front of any layers (like your second level menu), regardless of a <code>z-index</code>. Thankfully there are plugins like <a href="http://brandonaaron.net/docs/bgiframe/">bgiframe</a> for jQuery to solve this. Multi-level menus can bloat the code, event handling can be CPU intensive (use <a href="http://icant.co.uk/sandbox/eventdelegation/">event delegation</a>). And if large amounts of menu code is at the beginning, the real content gets further behind and less relevant for search engines.</p>

<p>In <strong>conclusion</strong>, for an alleged quicker entry you pay with many disadvantages. Often drop-down menus just conceal a poorly planned information architecture. I would reconsider their usage.</p>

<p>Did I forget something? What&#8217;s your opinion on drop-down menus? Love them or hate them?</p>
]]></content:encoded>
			<wfw:commentRss>http://learningtheworld.eu/2008/accessible-drop-down-menus/feed/</wfw:commentRss>
		<slash:comments>3</slash:comments>
		</item>
		<item>
		<title>Web Accessibility Toolbar 2.0 for Internet Explorer</title>
		<link>http://learningtheworld.eu/2007/accessibility-toolbar-2/</link>
		<comments>http://learningtheworld.eu/2007/accessibility-toolbar-2/#comments</comments>
		<pubDate>Wed, 05 Dec 2007 12:02:11 +0000</pubDate>
		<dc:creator><![CDATA[Martin Kliehm]]></dc:creator>
				<category><![CDATA[accessibility]]></category>
		<category><![CDATA[web development]]></category>
		<category><![CDATA[accessibility toolbar]]></category>
		<category><![CDATA[add-on]]></category>
		<category><![CDATA[Benjamin Grießmann]]></category>
		<category><![CDATA[color contrast]]></category>
		<category><![CDATA[colour contrast]]></category>
		<category><![CDATA[extension]]></category>
		<category><![CDATA[firefox]]></category>
		<category><![CDATA[German]]></category>
		<category><![CDATA[Gez Lemon]]></category>
		<category><![CDATA[i18n]]></category>
		<category><![CDATA[ie]]></category>
		<category><![CDATA[internet explorer]]></category>
		<category><![CDATA[Steve Faulkner]]></category>
		<category><![CDATA[tools]]></category>
		<category><![CDATA[translation]]></category>
		<category><![CDATA[wat]]></category>
		<category><![CDATA[wat 2.0]]></category>

		<guid isPermaLink="false">http://learningtheworld.eu/2007/accessibility-toolbar-2/</guid>
		<description><![CDATA[A couple of days ago the German version of the <strong>Web Accessibility Toolbar 2.0</strong> for Internet Explorer was released. It was developed by Steve Faulkner and translated by <span xml:lang="de" lang="de">Benjamin Grießmann</span> from Web for All with contributions from your humble host. Which reminds me that I also translated Gez Lemon&#8217;s new and improved Colour Contrast Analyser for Firefox earlier this year.]]></description>
				<content:encoded><![CDATA[<p><img src="http://learningtheworld.eu/wp-content/uploads/2007/12/screenshot-wat-de-20.gif" alt="Screenshot WAT 2.0 German" /></p>

<p>A couple of days ago the German version of the <a href="http://www.paciellogroup.com/resources/wat-ie-about.html">Web Accessibility Toolbar 2.0</a> for Internet Explorer was released. It was developed by Steve Faulkner and translated by <span xml:lang="de" lang="de">Benjamin Grießmann</span> from <a href="http://www.webforall.info">Web for All</a> with contributions from your humble host. Which reminds me that I also translated Gez Lemon&rsquo;s new and improved <a href="http://juicystudio.com/article/new-improved-colour-contrast-firefox-extension.php">Colour Contrast Analyser for Firefox</a> earlier this year.</p>
]]></content:encoded>
			<wfw:commentRss>http://learningtheworld.eu/2007/accessibility-toolbar-2/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Amazon Machine Tags Plugin for WordPress</title>
		<link>http://learningtheworld.eu/2007/amazon-machine-tags/</link>
		<comments>http://learningtheworld.eu/2007/amazon-machine-tags/#comments</comments>
		<pubDate>Sat, 01 Dec 2007 22:51:26 +0000</pubDate>
		<dc:creator><![CDATA[Martin Kliehm]]></dc:creator>
				<category><![CDATA[downloads]]></category>
		<category><![CDATA[web development]]></category>
		<category><![CDATA[WordPress]]></category>
		<category><![CDATA[Ajax]]></category>
		<category><![CDATA[Amazon]]></category>
		<category><![CDATA[Amazon Web Services]]></category>
		<category><![CDATA[API]]></category>
		<category><![CDATA[AWS]]></category>
		<category><![CDATA[book:isbn=0596515812]]></category>
		<category><![CDATA[book:isbn=0596529260]]></category>
		<category><![CDATA[ECS]]></category>
		<category><![CDATA[i18n]]></category>
		<category><![CDATA[ip2country]]></category>
		<category><![CDATA[machine tags]]></category>
		<category><![CDATA[microformats]]></category>
		<category><![CDATA[plugin]]></category>
		<category><![CDATA[POSH]]></category>
		<category><![CDATA[REST]]></category>
		<category><![CDATA[web services]]></category>
		<category><![CDATA[XSLT]]></category>
		<category><![CDATA[yui]]></category>

		<guid isPermaLink="false">http://learningtheworld.eu/2007/amazon-machine-tags/</guid>
		<description><![CDATA[I always wanted to implement one thing since I started the blog: <strong>a simple inclusion of Amazon items</strong>. I didn&#8217;t want to search through results that existing plugins provided. When I wrote about something like a book, I already used machine tags to identify the subject! So I found the inspiration to write my first real WordPress plugin: Amazon Machine Tags.&#160;[&#8230;]]]></description>
				<content:encoded><![CDATA[<p class="alert">The forthcoming <strong>API change</strong> requiring signed requests will effect this plugin. If you do not <a href="http://wordpress.org/extend/plugins/amazon-machine-tags/">update the plugin</a> then it will stop working on August 15th. Comments on this version are closed, please comment on the <a href="/2009/amazon-authorization/">update page</a>.</p>

<h3>In this article</h3>

<ul class="toc">
<li><a href="#intro">Introduction</a></li>
<li><a href="#installation">Installation</a></li>
<li><a href="#faq"><acronym title="Frequently Asked Questions">FAQ</acronym></a></li>
<li><a href="#changelog">Changelog</a></li>
<li><a href="#comments">Discussion</a></li>
</ul>

<h3 id="intro">Introduction</h3>

<p>I always wanted to implement one thing since I started the blog: <strong>a simple inclusion of Amazon items</strong>. I didn&rsquo;t want to search through results that existing plugins provided. When I wrote about something like a book, I already used machine tags to identify the subject! So I found the inspiration to write my first real WordPress plugin: <a href="http://wordpress.org/extend/plugins/amazon-machine-tags/">Amazon Machine Tags</a>.</p>

<p>Here&rsquo;s what it does:</p>

<ol>
<li>It identifies any tag in the <a href="http://en.wikipedia.org/wiki/Machine_tag">machine (or triple) tag</a> form <code>book:<acronym>isbn</acronym>=1234567890</code> or <code>amazon:asin=1234567890</code>. That works with native tags from WordPress 2.3 and later, Bunny&rsquo;s Technorati Tags, Jerome&rsquo;s Keywords, or as inline text (see below).</li>
<li>Then it gets the <strong>item information and a thumbnail image</strong> from the <a href="http://www.amazon.com/gp/browse.html?node=3435361">Amazon Web Services <acronym title="Application Programming Interface">API</acronym></a>. That&rsquo;s the real thing including prices and such, no cheap <acronym>RSS</acronym> feed. <img src="http://learningtheworld.eu/wp-includes/images/smilies/icon_wink.gif" alt=";)" class="wp-smiley" /> </li>
<li><p>The item(s) are displayed in the sidebar or in a blog article with a link to <strong>the visitor&rsquo;s best match</strong> (if the <a href="http://priyadi.net/archives/2005/02/25/wordpress-ip-to-country-plugin/">ip2country plugin</a> is installed) or <strong>a default Amazon shop</strong> of your choice. See examples in the sidebar.</p>
<p>The &ldquo;best match&rdquo; is based on the visitor&rsquo;s location. If she is from one of the six countries where Amazon has shops, that locale is chosen. If he is from Europe, the preferred language is matched to either France, Germany, or <acronym title="United Kingdom">UK</acronym>, with <acronym>UK</acronym> as default. If it&rsquo;s neither a locale nor Europe, amazon.com is the default. Based on your location, do you think that&rsquo;s a reasonable approach?</p>
<p>Note that some items, like books in any language other than English, are only available from certain locales, so a visitor from the <acronym title="United Kingdom">UK</acronym> might not see German books you recommend.</p></li>
<li>If you are an Amazon Associate for that locale, your Associate ID is included automatically.</li>
</ol>

<p>You can edit the server-side, semantic and valid <acronym title="Extensible Hypertext Markup Language">XHTML</acronym> output via <acronym title="Extensible Stylesheet Language Transformation">XSLT</acronym>, change the <acronym title="Cascading Style Sheets">CSS</acronym>, or translate the admin interface through <a href="http://www.poedit.net">.po files</a>. Actually <strong>Amazon loads the <acronym>XSLT</acronym> file from your server</strong> and processes it on theirs, so you shouldn&rsquo;t block <acronym>HTTP</acronym> access to the plugin directory, and <code>localhost</code> doesn&rsquo;t work either.</p>

<p>Results can be <strong>cached</strong> for anything between one second and one hour, so you don&rsquo;t need to worry even when you run an extremely popular blog.</p>

<p>The <a href="http://developer.yahoo.com/yui/connection/">YUI Connection Manager</a> is included to verify the Access Key in the admin interface via <acronym title="Representational State Transfer">REST</acronym> and unobtrusive <acronym title="Asynchronous JavaScript and XML">AJAX</acronym>.</p>

<p>I hope this little piece of software serves you well and you like it.</p>

<h3 id="installation">Installation</h3>

<ol>
<li><a href="http://downloads.wordpress.org/plugin/amazon-machine-tags.zip">Get the latest version</a> of the plugin from the WordPress site.</li>
<li>Upload the whole <code>amazon-machine-tags</code> folder into the <code>/wp-content/plugins/</code> directory.</li>
<li>Activate the plugin through the &ldquo;Plugins&rdquo; menu in WordPress.</li>
<li>Get an Amazon Web Services <a href="http://docs.amazonwebservices.com/AWSECommerceService/2007-06-13/GSG/GettinganAWSAccessKeyID.html">Access Key</a>.</li>
<li>Create a <code>wp-content/cache/</code> directory with permissions set to 755, or 777 if you create the directory as <code>root</code> user.</li>
<li>Put <code>&lt;?php AMTAP::get_items(); ?&gt;</code> in your sidebar and start using machine tags.</li>
<li><a href="#comment-32667">Edit <code>amtap-blog.css</code></a> if you like.</li>
<li>If you want to use tags in a blog article, write <code>&#91;amtap book:isbn=1234567890&#93;</code> or <code>&#91;amtap amazon:asin=1234567890&#93;</code>. Thanks to <a href="http://www.paulinepauline.de">paulinepauline</a> for that idea.</li>
</ol>

<h3 id="faq">Frequently Asked Questions</h3>

<h4>Does it work in the sidebar on Pages, too?</h4>

<p>Posts have tags, pages don&rsquo;t, so it doesn&rsquo;t work on those by default. But there&rsquo;s a plugin called <a href="http://wordpress.org/extend/plugins/tags4page/">tags4page</a> that enables tags for pages. Works like a charm.</p>

<h4>Is there a limit of how many items can be requested?</h4>

<p>Yes, Amazon has a limit of 10 items per request. Since they are separate requests, you can use a maximum of 10 items in the content plus a maximum of 10 in the sidebar.</p>

<h4>Would it be possible to cache the images?</h4>

<p>Technically it wouldn&rsquo;t be a problem, but the <a href="http://www.amazon.com/AWS-License-home-page-Money/b/?node=3440661#5">Amazon Web Services license</a> explicitly forbids caching of images (see 5.1.10). Sorry.</p>

<h4>I need to a larger thumbnail (medium), but can&rsquo;t seem to find a place to edit the size of the image being requested.</h4>

<p>The image size can be edited in the <acronym title="Extensible Stylesheet Language Transformation">XSLT</acronym>. The original result is a <acronym title="Extensible Markup Language">XML</acronym> file that is transformed by Amazon using your local copy of <code>amtap-html-sidebar.xsl</code> and <code>amtap-html-content.xsl</code>, respectively. Replacing every occurance of <code>.//aws:TinyImage</code> with <code>.//aws:MediumImage</code> should do the trick.
</p>

<p>You can view the original <acronym>XML</acronym> when you activate the &ldquo;debug&rdquo; option in the admin interface so that the request string is printed as a comment in the sidebar&rsquo;s source code. <acronym>XSLT</acronym> is a very powerful tool, and there&rsquo;s a lot more in the <acronym>XML</acronym>, for example customer reviews.</p>

<h4>Are all options really required?</h4>

<p>No. The only required field is the Amazon Web Services Access Key. You can leave the others, they are set to defaults then.</p>

<h3 id="changelog">Changelog</h3>

<ul class="changelog">
<li><strong>3.0</strong> <ins datetime="20090731">(2009-07-31)</ins>: Added signed requests for the new Amazon authorization requirement. Updated the API version to 2009-07-01 (please note: if you use your own XSL files, you must update the version in the XML namespace URL). Updated links.</li>
<li><strong>2.0</strong> <ins datetime="20080718">(2008-07-18)</ins>:
<ol>
<li>Added fields for editing the <a href="http://wppluginreview.info/2008/03/09/review-amazon-machine-tags/">sidebar headline</a>, <a href="#comment-33625">link target</a>, and displaying <a href="#comment-33625">rating stars</a>.</li>
<li>Added an error message if the plugin is run from a private IP address space like <a href="#comment-34319"><code>localhost</code></a>.</li>
<li>Changed <a href="#comment-33888">priorities for price</a> selection, they are now: <code>LowestNewPrice</code>, <code>ListPrice</code>, first offer, <code>LowestUsedPrice</code>.</li>
<li>Added support for the display of an <a href="#comment-34426">artist name</a>.</li>
<li>Added <a href="#comment-34412">rating stars</a>.</li>
<li>Fixed <a href="#comment-34224">EAN numbers with a dash</a>.</li>
<li>Fixed cutting of titles after a <a href="#comment-34326">period</a>.</li>
<li>Changed <acronym title="Cascading Style Sheets">CSS</acronym> and <acronym title="Extensible Stylesheet Language">XSL</acronym> files. <strong>Take care when you edited those.</strong></li>  
</ol>
</li>
<li><strong>1.1.3:</strong> Changed <code>amtap-admin.css</code> and <code>amtap-admin.inc.php</code> to make the admin interface look prettier with WordPress 2.5.</li>
<li><strong>1.1.2:</strong> Fixed a <a href="#comment-33367">bug</a> in <code>amtap.php</code> when there are no other tags but default tags.</li>
<li><strong>1.1.1:</strong> <a href="#comment-32967">Fixed</a> the sort order of inline items, a bug for returning an error message when the cache file is not writable, and added Amazon&rsquo;s limit of 10 items per request.</li>
<li><strong>1.1.0:</strong> Fixed the display of inline tags on the home page. Improved regular expression for filtering inline tags.</li>
<li><strong>1.0.6:</strong> Fixed a bug introduced through the new default items function when there were no items to be displayed in the sidebar.</li>
<li><strong>1.0.5:</strong> Added an option for <a href="#comment-32509">default items on every page</a>. Changed <code>amtap-html-sidebar.xsl</code> to sort items in the order of the request.</li>
<li><strong>1.0.4:</strong> Bugfix for replacement of dollar characters in content. Also content items are now cached separately.</li>
<li><strong>1.0.3:</strong> Fixed the <a href="#comment-32268" title="See comment">display of inline tags</a> on category pages.</li>
<li><strong>1.0.2:</strong> Changed the plugin path from <code>amtap</code> to <code>amazon-machine-tags</code> for consistency with the file structure in the zipped file.</li>
<li><strong>1.0.1:</strong> Bugfix for native WordPress tags.</li>
</ul>
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		</item>
		<item>
		<title>“Euracert” European Accessibility Label</title>
		<link>http://learningtheworld.eu/2007/euracert-label/</link>
		<comments>http://learningtheworld.eu/2007/euracert-label/#comments</comments>
		<pubDate>Thu, 21 Jun 2007 13:00:37 +0000</pubDate>
		<dc:creator><![CDATA[Martin Kliehm]]></dc:creator>
				<category><![CDATA[accessibility]]></category>
		<category><![CDATA[anysurfer]]></category>
		<category><![CDATA[braillenet]]></category>
		<category><![CDATA[euracert]]></category>
		<category><![CDATA[european label]]></category>
		<category><![CDATA[i18n]]></category>
		<category><![CDATA[technosite]]></category>

		<guid isPermaLink="false">http://learningtheworld.eu/2007/euracert-label/</guid>
		<description><![CDATA[Accessibility organizations from three countries agreed on the mutual recognition of their respective labels. That will lead towards a <strong>harmonization of accessibility in Europe</strong>. So far AnySurfer (Belgium), Technosite (Spain), and BrailleNet (France) partnered to create the &#8220;Euracert&#8221; label. If a website is already certified with one of their labels, an additional review grants the European level. [&#8230;]]]></description>
				<content:encoded><![CDATA[<p><img src="/wp-content/uploads/2007/06/euracert-label" width="191" height="69" alt="Euracert label" class="floatleft screenshot" /> Accessibility organizations from three countries agreed on the <strong>mutual recognition of their respective labels</strong>. That will lead towards a harmonization of accessibility in Europe. So far <a href="http://www.anysurfer.be">AnySurfer</a> (Belgium), <a href="http://www.technosite.es">Technosite</a> (Spain), and <a href="http://www.braillenet.org">BrailleNet</a> (France) partnered to create the <a href="http://www.euracert.org">&ldquo;<strong>Euracert</strong>&rdquo; label</a>. If a website is already certified with one of their labels, an additional review grants the European level. Prices vary from country to country, but the French price list quotes &euro;<abbr title="1000">1k</abbr> and &euro;500 for a re-evaluation on level double-A, &euro;600 and &euro;300 for level A, valid for two years.</p>

<p>That&rsquo;s an interesting initiative that will be joined by other organizations quickly. Alas there are countries without any recognized label: nobody adopted the impractical and overpriced <a href="http://learningtheworld.eu/2006/accessible-e-government/#buehler">German <acronym title="Deutsches Institut für Normung &mdash; German Institute for Standardization">DIN</acronym> certification</a> yet. In other countries like Sweden they don&rsquo;t certify, they prefer to educate. Also the <acronym title="European Union">EU</acronym> funded Unified Web Evaluation Methodology (<a href="http://www.euracert.org/en/resources/uwem/"><acronym>UWEM</acronym></a>) is part of the evaluation process and virtually unknown among developers, so there needs to be more education and outreach to increase the adoption rate.</p>

<p>Though it&rsquo;s not perfect, it&rsquo;s a step in the right direction. It&rsquo;s the only European label that we have so far (unless other research projects funded by the European Commission unknowingly produce a competing label) and it&rsquo;s based on a solid foundation with well-recognized national bodies.</p>

<p>But please, <strong>somebody replace the embarrassing flags</strong> from the language selection. Although that&rsquo;s more related to usability than accessibility, these experts should know that <a href="http://www.w3.org/TR/i18n-html-tech-lang/#ri20040808.173208643">flags represent <em>countries</em>, not <em>languages</em></a>. Come on, one of them is Belgian, they should know how to handle language switches on multilingual websites!</p>
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		<item>
		<title>@media 2007 Wrap-Up</title>
		<link>http://learningtheworld.eu/2007/atmedia-wrapup/</link>
		<comments>http://learningtheworld.eu/2007/atmedia-wrapup/#comments</comments>
		<pubDate>Mon, 18 Jun 2007 19:25:50 +0000</pubDate>
		<dc:creator><![CDATA[Martin Kliehm]]></dc:creator>
				<category><![CDATA[accessibility]]></category>
		<category><![CDATA[conferences]]></category>
		<category><![CDATA[design]]></category>
		<category><![CDATA[W3C]]></category>
		<category><![CDATA[web development]]></category>
		<category><![CDATA[web standards]]></category>
		<category><![CDATA[@media]]></category>
		<category><![CDATA[Andy Clarke]]></category>
		<category><![CDATA[atmedia]]></category>
		<category><![CDATA[atmedia07]]></category>
		<category><![CDATA[atmedia2007]]></category>
		<category><![CDATA[Beyond AJAX]]></category>
		<category><![CDATA[book:isbn=0321410971]]></category>
		<category><![CDATA[book:isbn=1430319526]]></category>
		<category><![CDATA[creative sponge]]></category>
		<category><![CDATA[Hannah Donovan]]></category>
		<category><![CDATA[i18n]]></category>
		<category><![CDATA[internationalization]]></category>
		<category><![CDATA[Jesse James Garrett]]></category>
		<category><![CDATA[Joe Clark]]></category>
		<category><![CDATA[Jon Hicks]]></category>
		<category><![CDATA[Last FM]]></category>
		<category><![CDATA[london]]></category>
		<category><![CDATA[Mark Boulton]]></category>
		<category><![CDATA[Molly Holzschlag]]></category>
		<category><![CDATA[Richard Ishida]]></category>
		<category><![CDATA[Shawn Henry]]></category>
		<category><![CDATA[Shawn Lawton Henry]]></category>
		<category><![CDATA[typography]]></category>
		<category><![CDATA[upcoming:event=110091]]></category>
		<category><![CDATA[WAI]]></category>

		<guid isPermaLink="false">http://learningtheworld.eu/2007/atmedia-wrapup/</guid>
		<description><![CDATA[Sum-up of the <strong>@media conference</strong> in London that I attended June 7th-8th, 2007. Read about Jesse James Garret&#8217;s keynote, passionate evangelists, and how to get great design ideas on the loo&#160;[&#8230;]]]></description>
				<content:encoded><![CDATA[<p>Here&rsquo;s a short sum-up of the @media conference in London that I attended. <a href="/2007/not-your-problem/">Joe Clark&#8217;s</a> and Nate Koechley&#8217;s talks got separate blog entries, please check them for accessibility and <a href="/2007/performance-2/">browser performance</a> issues.</p>

<h3>In this post</h3>

<ul class="toc">
<li><a href="#garrett">Jesse James Garrett</a></li>
<li><a href="#holzschlag">Molly Holzschlag</a></li>
<li><a href="#boulton">Mark Boulton</a></li>
<li><a href="#hicks">Jon Hicks</a></li>
<li><a href="#donovan">Hannah Donovan</a></li>
<li><a href="#henry">Shawn Lawton Henry</a></li>
<li><a href="#ishida">Richard Ishida</a></li>
<li><a href="#clarke">Andy Clarke</a></li>
</ul>

<p id="garrett"><a href="http://www.flickr.com/photos/martin-kliehm/536545606/in/set-72157600328144321/" title="Larger version on flickr"><img src="/wp-content/uploads/2007/06/jesse-james-garrett" alt="Jesse James Garrett" width="240" height="180" class="floatleft photo" /></a> First off was <strong>Jesse James Garrett</strong>, the creator of the term <acronym title="Asynchronous JavaScript and XML">AJAX</acronym>, who held a keynote presentation with all the usual quotes, big stock photos, historical references to technical pioneers (this time the inventor of the Kodak film roll) and such (<a href="http://www.htmldog.com/atmedia2007/beyondajax.mp3" title="Jesse James Garrett podcast" type="audio/mp3">podcast</a>). I&#8217;m afraid I can&rsquo;t bear victorian black and white photos of technical pioneers in the context of web development any longer. OK, so this guy changed the way photos were made in 1885. Also web applications are a little more convenient now than server roundtrips. But where&#8217;s the common element? One made photography easier for the mainstream, the other is a much hyped technique with the <em>potential</em> to make things easier, but quite often people just blow it.</p>

<p>Don&rsquo;t believe the hype. Most web applications still don&#8217;t innovate, they just <em>copy desktop behavior</em>. And who is really comfortable with the restrictions of desktop software anyway? If it&#8217;s only a matter of response rates, learn from Yahoo! how to minimize the amount of data being sent on server requests. If I can update a whole page in 1-2 seconds using smart caching and other techniques, there&rsquo;s <em>no need</em> for an AJAX request except for immediate form feedback helping users to avoid errors. Film rolls have faded from the face of Earth, it really would be more interesting what&#8217;s next, after AJAX. Jesse talked about user-centered design, cited Tim O&#8217;Reilly with the paradigm to &ldquo;<a href="http://radar.oreilly.com/archives/2005/04/designing_from.html">design from the outside in</a>.&rdquo; But that only means: after having taken one usability step back, eventually we will move forward. Where to? Jesse failed to deliver that.</p>

<p id="holzschlag"><a href="http://www.flickr.com/photos/martin-kliehm/536659803/in/set-72157600328144321/" title="Larger version on flickr"><img src="/wp-content/uploads/2007/06/molly-holzschlag" alt="Molly Holzschlag" width="240" height="180" class="floatleft photo" /></a> A key factor to understand why browsers are such a pain is to remind yourself that they are just a piece of software, said <strong>Molly Holzschlag</strong>, now working for Microsoft (<a href="http://www.htmldog.com/atmedia2007/thebrokenworld.mp3" title="Molly Holzschlag podcast" type="audio/mp3">podcast</a>). In fact very complex software. She compared the <a href="http://2007.xtech.org/public/asset/attachment/126" title="The Broken World: Solving the Browser Problem Once and For All">pros and cons of different browsers</a> and what we can learn from them: short iteration circles and automated updates from Firefox, a strong brand and user identification from Opera. Otherwise she recommended that if you <em>really need</em> a feature in <acronym title="Internet Explorer">IE</acronym>, make yourself heard. Put pressure on Microsoft to get priority. Just telling them you &ldquo;want&rdquo; something like multiple background images or <acronym title="Web Accessibility Initiative">WAI</acronym> <acronym title="Accessible Rich Internet Applications">ARIA</acronym> support won&rsquo;t be enough. Your voice and your friends&rsquo; might weight more than that of the <acronym title="World Wide Web Consortium">W3C</acronym>, because you are their customers, their userbase.</p>

<p id="boulton"><strong>Mark Boulton&#8217;s</strong> presentation <a href="http://www.markboulton.co.uk/present/atmedia07">about typography</a> gained more momentum after a while (<a href="http://www.htmldog.com/atmedia2007/fivestepstobettertypography.mp3" title="Mark Boulton podcast" type="audio/mp3">podcast</a>). He explained why Verdana is lighter than Arial, and that you should blur your design to identify the optical gray gradient of a page. Then he continued to talk on grids and how to <a href="http://24ways.org/2006/compose-to-a-vertical-rhythm">design to a vertical rhythm</a>, a topic well known from print but rather unrecognized in web design until last year. Quite fashionable are headlines in a serif font for a better structure, and paying attention to small details like using the correct quotation marks or dashes can make a difference.</p>

<p id="hicks"><a href="http://www.flickr.com/photos/martin-kliehm/536658835/in/set-72157600328144321/" title="Larger version on flickr"><img src="/wp-content/uploads/2007/06/jon-hicks" alt="Jon Hicks with his sketchbook" width="240" height="180" class="floatleft photo" /></a> <strong>Jon Hicks</strong> showed us <a href="http://www.hicksdesign.co.uk/journal/be-a-creative-sponge">how to be a creative <del>leech</del> sponge</a> (<a href="http://www.htmldog.com/atmedia2007/howtobeacreativesponge.mp3" title="Jon Hicks podcast" type="audio/mp3">podcast</a>). Get your inspiration <a href="http://del.icio.us/jonhicks/sponge" title="Examples from Jon Hicks&rsquo; del.icio.us account">everywhere</a>&nbsp;&mdash; with two exceptions. Do sketches, keep those you draw during phone calls, take photos of typefaces, keep photos gone bad just for the color effects, collect labels from clothes, get leaflets (the &ldquo;all you can eat buffet for designers&rdquo;; get even the bad as you might need to mimic bad design some day). Get inspiration from book covers, graphic novels, <a href="http://www.amazon.com/dp/1597020052/">books for</a> <a href="http://www.amazon.com/dp/000724794X/">children</a>, magazines, patterns, prints, or packaging design. <a href="http://printpattern.blogspot.com">Blogs</a> and <a href="http://www.flickr.com/photos/factoryjoe/collections/72157600001823120/">flickr</a> <a href="http://www.flickr.com/photos/printpattern/">groups</a> also help you to get inspiration, delivered right to your desktop through their <acronym>RSS</acronym> feed. The two exceptions? Other websites and logos, because there&#8217;s a high risk you will come up with a copy instead of an original idea. They are too close to the desired product so there&rsquo;s no room for creative transformation.</p>

<p>Once you have collected inspirational material, it needs to be cataloged. That can be done in a sketchbook, but iPhoto, <a href="http://www.barebones.com/products/yojimbo/">Yojimbo</a>, or flickr will do the job.</p>

<p>Catalysts against a creative block (the dreaded blank page) can be deadlines, changing your environment and going for a walk or drive, going to bed, some peace and quietness (in the bathroom, where you keep the magazines for inspiration), taking a shower, or traditional techniques like brainstorming, mindmapping, criticizing and learning from bad examples, or moodboards. If your clients are adventurous enough, they can even do their own.</p>

<p id="donovan"><a href="http://www.flickr.com/photos/rachelandrew/539167297/in/set-72157600329497041/" title="Photo by Rachel Andrew, see larger version on flickr"><img src="/wp-content/uploads/2007/06/hannah-donovan" alt="Hannah Donovan" width="240" height="160" class="floatleft photo" /></a> Some people are <a href="http://blog.basquiat.de/archives/471-Halbbestaendige-Geruechte.html" hreflang="de">angry about Last FM&rsquo;s sell-out to CBS</a>, but <strong>Hannah Donovan</strong> didn&rsquo;t make the impression that a petty-minded corporate spirit has taken over (yet). She talked about lessons you learn in a startup, like getting started, getting out the product very quickly (before others do it), taking small iteration steps with the rapid development technique <a href="http://en.wikipedia.org/wiki/Scrum_(development)">Scrum</a>, and using broad brushstrokes as a designer. Perfectionism is no priority for startups. Also she recommended that designers and developers work on a team (<em>really</em>) and hold 5&nbsp;minute stand-up meetings every morning, &ldquo;that makes a world of difference.&rdquo; That actually means sharing a room, you know.</p>

<p id="henry"><strong>Shawn Lawton Henry</strong> works for the <acronym>W3C</acronym> <acronym title="Web Accessibility Initiative">WAI</acronym> and the <acronym title="Massachusetts Institute of Technology">MIT</acronym>, naturally she talked about accessibility (<a href="http://www.htmldog.com/atmedia2007/advancingwebaccessibility.mp3" title="Shawn Lawton Henry podcast" type="audio/mp3">podcast</a>). That&rsquo;s something most people take as &ldquo;what you can get away with,&rdquo; but it&rsquo;s really <em>about people</em>. So it&rsquo;s important to understand how people with disabilities use the web. Technical standards like the Web Content Accessibility Guidelines 2.0 (<acronym>WCAG</acronym>) only supply a shared definition of requirements. Because they are not going to change for a while you better take the time to <a href="http://www.w3.org/TR/WCAG20/">review the current version</a>. However, the <acronym>WCAG</acronym> Techniques document will be adaptable and more flexible. There will be subversions, and although there&rsquo;s no issue tracker at the moment, you will be able to submit additional techniques to meet the <acronym>WCAG</acronym> requirements as they are intended to grow with time.</p>

<p id="ishida"><a href="http://www.flickr.com/photos/martin-kliehm/536659597/in/set-72157600328144321/" title="Larger version on flickr"><img src="/wp-content/uploads/2007/06/richard-ishida" alt="Richard Ishida" width="240" height="180" class="floatleft photo" /></a> I didn&rsquo;t take notes on <strong>Richard Ishida&rsquo;s</strong> <a href="http://people.w3.org/rishida/blog/?p=95">presentation about <acronym title="internationalization">I18N</acronym></a> because I was familiar with the slides already, but I was deeply impressed by this man (<a href="http://www.htmldog.com/atmedia2007/designingforinternationalusers.mp3" title="Richard Ishida podcast" type="audio/mp3">podcast</a>). Richard lives and breathes internationalization. He speaks about a dozen languages and doesn&rsquo;t let a chance pass to practice them. He is the perfect personification as head of <acronym>W3C</acronym> <acronym>I18N</acronym> activity. I only wish he had said a few things about the <a href="http://www.w3.org/TR/its/"><acronym>I18N</acronym> tag set</a> because it&rsquo;s a mighty tool for translations and fairly new.</p>

<p id="clarke">On a related subject <strong>Andy Clarke</strong> asked designers worldwide if they thought their country or region got a distinctive design style, and he compared international websites of global players (<a href="http://www.htmldog.com/atmedia2007/royalewithcheese.mp3" title="Andy Clarke podcast" type="audio/mp3">podcast</a>). While most of them just work, they could do better by adapting to the local customs and style. Culturalization is the key, anything else is modern imperialism. Check his <a href="http://www.stuffandnonsense.co.uk/downloads/slides/atmedia07.pdf" type="application/pdf" title="Andy Clarke: Royale with Cheese">presentation</a> (<acronym title="Portable Data Format">PDF</acronym>, 18&nbsp;<acronym title="Megabyte">MB</acronym>).</p>

<p><strong>Somehow it was different than last year.</strong> Of course I came home full of inspiration, but this time it was more like deepening knowledge, while last year for example the concepts of microformats or browser performance were totally new for me. I met more people than in 2006, and I feel some of them can become my friends. That&rsquo;s a new experience at a conference. I even found some parallels with Joe Clark. No, I&rsquo;m not a &ldquo;<a href="http://blog.fawny.org/2007/06/08/retired/">sarcastic gay vegan</a>,&rdquo; but we both don&rsquo;t drink, prefer tea, and can be quite pedantic&hellip; I even linked to his website without <code>rel=nofollow</code> now, what an improvement! <img src="http://learningtheworld.eu/wp-includes/images/smilies/icon_wink.gif" alt=";)" class="wp-smiley" />  Anyway, I&rsquo;m looking forward to meet some of my new friends in Brighton at <a href="http://2007.dconstruct.org">d.construct</a>.</p>
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		</item>
		<item>
		<title>WaSP International Outreach</title>
		<link>http://learningtheworld.eu/2007/wasp-ilg/</link>
		<comments>http://learningtheworld.eu/2007/wasp-ilg/#comments</comments>
		<pubDate>Mon, 12 Mar 2007 11:40:28 +0000</pubDate>
		<dc:creator><![CDATA[Martin Kliehm]]></dc:creator>
				<category><![CDATA[about]]></category>
		<category><![CDATA[web standards]]></category>
		<category><![CDATA[accessibility]]></category>
		<category><![CDATA[g11n]]></category>
		<category><![CDATA[globalization]]></category>
		<category><![CDATA[i18n]]></category>
		<category><![CDATA[ilg]]></category>
		<category><![CDATA[internationalization]]></category>
		<category><![CDATA[l10n]]></category>
		<category><![CDATA[localization]]></category>
		<category><![CDATA[outreach]]></category>
		<category><![CDATA[wasp]]></category>

		<guid isPermaLink="false">http://learningtheworld.eu/2007/wasp-ilg/</guid>
		<description><![CDATA[The <strong>Web Standards Project</strong> (<acronym>WaSP</acronym>) has a new International Liaison Group (<acronym>ILG</acronym>) of which I&#8217;m a member now.&#160;[&#8230;]]]></description>
				<content:encoded><![CDATA[<p class="vcard"><a href="http://www.webstandards.org" class="url" rel="co-worker colleague" title="Web Standards Project"><img src="/wp-content/uploads/2007/03/gen-logo-wasp.png" width="75" height="75" alt="WaSP Logo" class="floatleft photo" /></a> The <strong class="fn">Web Standards Project</strong> (<acronym>WaSP</acronym>) has a new <a href="http://www.webstandards.org/action/ilg/">International Liaison Group</a> (<acronym>ILG</acronym>) of which I&rsquo;m a member now. I&rsquo;m excited to network with competent people around the globe and can&rsquo;t wait to change the world. For example, there are contacts with the <acronym title="World Wide Web Consortium">W3C</acronym> <acronym title="Internationalization">I18N</acronym> group, there are members who work for the Mozilla Foundation, Opera, or national accessibility organizations.</p>

<p><strong>Objectives</strong> of the <acronym>WaSP</acronym> <acronym>ILG</acronym> include</p>

<ul>
<li><strong>information and discussion</strong> about web standards and accessibility, particularly with regard to localization,</li>
<li><strong>outreach</strong> through blogs, books, articles, presentations, code, design, vision and leadership,</li>
<li><strong>translation and internationalization</strong> of documents and resources,</li>
<li>keeping an eye on <strong>web trends</strong>.</li>
</ul>

<p>There are and will be local geek meetings called &ldquo;<strong><acronym>WaSP</acronym> Cafés</strong>,&rdquo; perhaps on a smaller scale than barcamps or other unconferences, but with the same attitude to share, discuss, learn, and get feedback.</p>

<p>I must admit the <acronym>WaSP</acronym> <acronym>ILG</acronym> website is a little jammed with multilingual texts where <a href="http://www.w3.org/International/questions/qa-when-lang-neg" title="W3C Internationalization: When to use language negotiation">language negotiated content</a> would be more appropriate, also the <acronym>ILG</acronym> is not yet featured on the front page, and there are a few minor accessibility flaws like pages linking to themselves or the logo being a background image. But I&rsquo;m convinced these issues will be addressed soon. After all, the group is only six weeks old, and currently a lot of people are actively participating at <a href="http://sxsw.com"><acronym title="South by South West">SXSW</acronym></a>. <img src="http://learningtheworld.eu/wp-includes/images/smilies/icon_wink.gif" alt=";)" class="wp-smiley" /> </p>
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		<item>
		<title>My @media 2006 Day Two</title>
		<link>http://learningtheworld.eu/2006/atmedia-day-two/</link>
		<comments>http://learningtheworld.eu/2006/atmedia-day-two/#comments</comments>
		<pubDate>Mon, 26 Jun 2006 07:00:04 +0000</pubDate>
		<dc:creator><![CDATA[Martin Kliehm]]></dc:creator>
				<category><![CDATA[accessibility]]></category>
		<category><![CDATA[conferences]]></category>
		<category><![CDATA[design]]></category>
		<category><![CDATA[web development]]></category>
		<category><![CDATA[web standards]]></category>
		<category><![CDATA[@media]]></category>
		<category><![CDATA[Ajax]]></category>
		<category><![CDATA[atmedia]]></category>
		<category><![CDATA[atmedia2006]]></category>
		<category><![CDATA[book:isbn=0321509021]]></category>
		<category><![CDATA[book:isbn=1590598148]]></category>
		<category><![CDATA[Cameron Moll]]></category>
		<category><![CDATA[Dan Cederholm]]></category>
		<category><![CDATA[DHTML]]></category>
		<category><![CDATA[Eric Meyer]]></category>
		<category><![CDATA[i18n]]></category>
		<category><![CDATA[JavaScript]]></category>
		<category><![CDATA[Jeremy Keith]]></category>
		<category><![CDATA[Jon Hicks]]></category>
		<category><![CDATA[london]]></category>
		<category><![CDATA[microformats]]></category>
		<category><![CDATA[Mobile Web]]></category>
		<category><![CDATA[Molly Holzschlag]]></category>
		<category><![CDATA[Nate Koechley]]></category>
		<category><![CDATA[Robin Christopherson]]></category>
		<category><![CDATA[Tantek Çelik]]></category>
		<category><![CDATA[uk]]></category>
		<category><![CDATA[W3C]]></category>
		<category><![CDATA[yahoo]]></category>

		<guid isPermaLink="false">http://learningtheworld.eu/2006/atmedia-day-two/</guid>
		<description><![CDATA[Day two of the @media conference included talks about microformats, Yahoo!&#8217;s new technical strategies, browser memory leaks and performance tweaks, some information about accessibility, the mobile web, and meeting Molly Holzschlag.&#160;[&#8230;]]]></description>
				<content:encoded><![CDATA[<p><strong>Day two of the @media conference included</strong> talks about microformats, Yahoo!&rsquo;s new technical strategies, browser memory leaks and performance tweaks, some information about accessibility, the mobile web, and meeting Molly&reg; Holzschlag.</p>

<h3>In this post:</h3>

<ul class="toc">
    <li><a href="#cederholm">Dan Cederholm: Bulletproof web design</a></li>
    <li><a href="#christopherson">Robin Christopherson: Beyond a code audit</a></li>
    <li><a href="#moll">Cameron Moll: Mobile web design</a></li>
    <li><a href="#koechley">Nate Koechley: Yahoo! <abbr title="versus">vs.</abbr> Yahoo! <abbr>vs.</abbr> Yahoo!</a></li>
    <li><a href="#tantek">Tantek Çelik: Microformats: evolving the web</a></li>
    <li><a href="#hot-topics">&ldquo;Hot topics&rdquo; panel</a></li>
    <li><a href="#presentations">More presentations</a></li>
</ul>

<p>The <strong>evening:before</strong> featured another get-together in a fancy work:after club, which can be summed up like this: Sweden won against Paraguay, and it was hard to talk to others because some notorious <acronym title="title">DJ</acronym> wouldn&rsquo;t turn down the volume. He desperately tried to get somebody on the dance floor switching from house music to <acronym title="Rhythm &amp; Blues">r&amp;b</acronym> pop, but didn&rsquo;t realize that was not what the audience wanted.</p>

<h3 id="Cederholm">Bulletproof web design</h3>

<p class="vcardInComments">If there was an award for <a href="http://simplebits.com/publications/speak/atmedia/bpwd-atmedia2006.pdf" title="Dan Cederholm&rsquo;s slides as PDF (20 Megabyte)" type="application/pdf">best presentation</a>, <a href="http://www.simplebits.com" class="url fn">Dan Cederholm</a> would get my vote! His slides were so well-designed, so clean, and the special effects (not seen in the <acronym title="Portable Document Format">PDF</acronym> version) contributed to clarify the scope.</p>

<p>It was like <a href="/2006/atmedia-day-one/#keith">Jeremy Keith&rsquo;s presentation</a> the day before, where you knew all the things he was talking about, still <strong>something made &ldquo;click&rdquo; and shifted your perception</strong> &mdash; and if it&rsquo;s only that you think <em>&ldquo;that&rsquo;s what I always needed to show to my designers!&rdquo;</em></p>

<p class="floatleft">
    <img class="floatleft" src="/wp-content/uploads/2006/06/2006-06-16-dig-dug-text-test" alt="Scene from the computer game Dig Dug" width="200" height="125" />
    <span class="caption">Scene from the early computer game Dig Dug (Atari 1983), where you pump up monsters until they explode</span>
</p>

<p>His example for thinking ahead showed a photo of a new warehouse in San Francisco, where the windows had been inserted to be <strong>future proof</strong>, but cemented over for the current use. So think ahead, because content amount and text size may vary, content changes and needs to be maintained, and because the environment can change. Take something off, like images, <acronym title="Cascading Style Sheets">CSS</acronym>, or JavaScript, and make sure the website still functions.</p>

<blockquote cite="http://simplebits.com/publications/speak/atmedia/bpwd-atmedia2006.pdf">
    <p class="last">&ldquo;The journey begins by letting go of control, and becoming flexible.&rdquo;</p>
</blockquote>

<p class="cite"><cite>John Allsopp, &ldquo;<a href="http://www.alistapart.com/articles/dao/">A Dao of Web Design</a>&rdquo;</cite></p>

<p>A lot of his examples worked by setting a 50% value for the horizontal or vertical <code>background-position</code> in combination with overlapping images, and he introduced the term <strong><q>&ldquo;Dig Dug Text Test&rdquo;</q></strong> as a metaphor for pumping up text and assuring the design is still not destroyed. <em>Reminder to self:</em> add more references to early 1980&rsquo;s games in presentations, they are <em>so</em> cool!</p>

<h3 id="christopherson">Beyond a code audit</h3>

<p class="vcard"><a href="http://www.abilitynet.org.uk" class="url fn">Robin Christopherson</a>&rsquo;s bad karma was that he relied on the unreliable wireless network in the conference center, therefore a few examples from the web refused to work.</p>

<p>But by struggling with the technical constraints he set a real-world example for the attending web developers. Robin is blind, and he did not notice the Windows <acronym>XP</acronym> bubbles popping up once in a while trying to alert him that the network was unavailable. He was unable to login on the <acronym title="Queen Elizabeth II Conference Center">QE2CC</acronym> screen, because it was inaccessible and refreshed too often. Also most people I spoke with were deeply impressed by the <strong>incredible speed his screen reader was set to</strong>.</p>

<p>He had also prepared a couple of educational films about challenges on the web for people beyond the visually impaired, like a woman with <strong>learning disabilities</strong> who didn&rsquo;t understand the word &ldquo;disclaimer,&rdquo; or a quadriplegic with a mouthstick and a <strong>voice recognition</strong> system, which was useless when the <code>alt</code> text in images or Flash applications did not match the displayed text. I know what a tremendous amount of work the production of such little films is, and I&rsquo;m looking forward to access them on Robin&rsquo;s site. Also check his <a href="http://www.abilitynet.org.uk/content/oneoffs/media2006.htm" title="Speaker&rsquo;s notes for &ldquo;Beyond the code audit&rdquo;">speaker&rsquo;s notes</a>.</p>

<h3 id="moll">Mobile web design</h3>

<p class="vcard"><a href="http://flickr.com/photos/martin-kliehm/171504415/in/set-72157594172244478/" title="Larger version of the Cameron Moll photo on flickr"><img class="floatleft photo" src="/wp-content/uploads/2006/06/2006-06-16-cameron-moll-small" alt="Cameron Moll presenting @media conference" width="200" height="150" /></a> <a href="http://www.cameronmoll.com" class="url fn">Cameron Moll</a> mentioned a few times that he had held this presentation a year ago. Therefore it was very professional, very slick, but a little unemotional and in my opinion not quite up to date.</p>

<p>Okay, there are more mobile phones than computers, more mobiles than landline connections, but he didn&rsquo;t stress the <a href="http://opengardensblog.futuretext.com/archives/2006/03/mobile_web_20_a_2.html" title="The head of Oxford University&rsquo;s &ldquo;Next Generation Mobile Applications Panel&ldquo; about Ajax on handhelds">incredible impact the wide adoption of Opera</a> supporting <a href="http://www.opera.com/products/mobile/platform/" title="Opera mobile platform website">JavaScript on cellphones</a> will have. That&rsquo;s finally a <em>common platform</em> for web applications using <acronym>Ajax</acronym>, as opposed to hundreds of different implementations of Java which are almost impossible to test. That&rsquo;s a most remarkable development with the potential of revolutionizing mobile applications &mdash; Cameron hardly mentioned it, although this became public in November 2005.</p>

<p>Of course <acronym title="Wireless Markup Language">WML</acronym> is dead, long live <a href="http://www.openmobilealliance.org/tech/affiliates/wap/wap-277-xhtmlmp-20011029-a.pdf" type="application/pdf" title="XHTML Mobile Profile specification"><acronym title="eXtensible Markup Language Mobile Profile">XHTML MP</acronym></a>! You should serve content from a <em><abbr title="dot">.</abbr>mobi</em> domain and concentrate on the contextually relevant information: People might check their eBay watchlist on their cellphone, but they don&rsquo;t upload items to sell, so ignore features like that when developing for mobile devices.</p>

<p>Also my question about <strong>Vodafone and other carriers inserting invalid code</strong> in the pages they serve through their proxy might not have been clear enough, because Cameron replied it&rsquo;s up to the carriers and the browsers how to interpret pages, while developers can control the code.</p>

<p>Unfortunately that&rsquo;s untrue when carriers compress images more and insert JavaScript to get the original images with higher resolutions with a key combination. One script is inserted with the deprecated <code>language</code> attribute in the header, while the other comes <em>after</em> the closing <code>&lt;/html&gt;</code> tag, thus <strong>rendering your valid <acronym title="eXtensible Hypertext Markup Language">XHTML</acronym> strict code to tag soup</strong>. The problem not only manifests on mobile browsing devices, but also when you surf with a regular notebook using your mobile access. Therefore a <code>@media handheld</code> <acronym>CSS</acronym>, browser sniffing, or serving the MIME type depending on the <acronym title="Hypertext Transfer Protocol">HTTP</acronym> accept header are all doomed. And there&rsquo;s no way to prevent the carriers from doing such evil.</p>

<h3 id="koechley">Yahoo! <abbr title="versus">vs.</abbr> Yahoo! <abbr>vs.</abbr> Yahoo!</h3>

<p class="vcard"><a href="http://www.flickr.com/photos/martin-kliehm/171521325/in/set-72157594172244478/" title="Larger version of the Nate Koechley photo on flickr"><img class="floatleft photo" src="/wp-content/uploads/2006/06/2006-06-16-nate-koechley-s" alt="Nate Koechley" width="200" height="150" /></a> I went to this <a href="http://nate.koechley.com/blog/2006/07/12/my_atmedia_2006_slides/" title="Nate Koechley&rsquo;s presentation slides">presentation</a> because <cite><a href="http://nate.koechley.com/blog/" class="url fn">Nate Koechley</a></cite> recently published his smart concept paper about <a href="http://developer.yahoo.com/yui/articles/gbs/gbs.html">graded browser support</a>, which we immediately adopted. What I didn&rsquo;t expect was a most impressive roller coaster trip through browser performance!</p>

<p>Yahoo! has a beta version out for their new portal, also <em>Yahoo! Photos</em> and <em>Yahoo! Mail</em> is under development. All of them make more or less <strong>heavy use of <acronym title="Dynamic HTML">DHTML</acronym> and <acronym title="Asynchronous JavaScript and XML">Ajax</acronym></strong>. Yahoo&rsquo;s goals were increasing performance by 300%, adding interactivity (vulgo: drag &amp; drop), and supporting web standards.</p>

<p>For a <strong>fast response</strong> they used techniques like <a href="http://www.alistapart.com/articles/sprites"><acronym>CSS</acronym> sprites</a>, or memory management. In Nate&rsquo;s words browsers are still <q class="italic">&ldquo;a pain in the ass,&rdquo;</q> and <q class="italic">&ldquo;the web is the most hostile software engineering environment imaginable.&rdquo;</q> <strong><acronym>DHTML</acronym> leaks memory like a sieve</strong>, so for each constructor use a destructor. Instead of adding events to thousands of email objects Yahoo! used the existing <code>document.onmousemove</code> event and checked if the mouse was over an object or white space, then passed the event to that object or drew a rectangular choice box. Key concepts are conservation, destruction, and recycling iFrames (<code>about:blank</code>). Use <a href="http://sourceforge.net/projects/ieleak" title="Drip and IE Sieve leak detectors">Drip</a> as a tool for measuring <a href="http://msdn.microsoft.com/library/en-us/IETechCol/dnwebgen/ie_leak_patterns.asp" title="Microsoft developer network about Internet Explorer memory leak patterns">memory leaks</a>, test extreme object counts, test long interactions, and test extensive navigation.</p>

<p>Also their developers <strong>prefer <a href="http://www.json.org"><acronym title="JavaScript Object Notation">JSON</acronym></a> over <acronym title="eXtensible Markup Language">XML</acronym></strong> because parsing <acronym>XML</acronym> degrades performance greater than linear as <acronym>XML</acronym> size increases.</p>

<p>They have identified <strong><a href="http://yuiblog.com/blog/2006/11/28/performance-research-part-1/"><acronym>HTTP</acronym> requests</a> as a main performance killer</strong>. Browsers still only process two or four <acronym>HTTP</acronym> requests at a time, especially start pages are not cached as effectively as they imagined, and parsing JavaScript freezes the browser. Therefore they rather serve a single large file with <acronym>CSS</acronym> in the header, and JavaScript as close to the <code>&lt;/body&gt;</code> tag as possible.</p>

<p>Regarding browsers it is faster to <strong>develop for standards, than patch</strong>. Browser support must not be binary, and it does not mean &ldquo;the same.&rdquo;</p>

<blockquote>
    <p class="last">Expecting two users using different browser software to have an identical experience fails to embrace or acknowledge the heterogenous essence of the Web.</p>
</blockquote>

<p>There are more <acronym title="Internet Explorer">IE</acronym>5 browsers out there than <acronym>IE</acronym>&nbsp;5.5, and <acronym>IE7</acronym> &ldquo;already moved the needle.&rdquo;</p>

<p>With all the <acronym>DHTML</acronym> and <acronym>Ajax</acronym> I was <strong>concerned about accessibility</strong>, but in a sidenote I almost missed Nate mentioned the <a href="http://developer.mozilla.org/en/docs/Accessible_DHTML">IBM contribution for <acronym>DHTML</acronym> accessibility</a>. Wonderful!</p>

<h3 id="tantek">Microformats: evolving the web</h3>

<p class="vcard"><a href="http://flickr.com/photos/martin-kliehm/171526392/in/set-72157594172244478/" title="Larger version of the Tantek &Ccedil;elik photo on flickr"><img class="floatleft photo" src="/wp-content/uploads/2006/06/2006-06-16-tantek-celik-s" alt="Tantek &Ccedil;elik" width="200" height="150" /></a> When microformats are even on the radar of <a href="http://microformats.org/blog/2006/03/20/bill-gates-at-mix06-we-need-microformats/" title="Bill Gates at Mix06 conference">Bill Gates</a>, how could I ignore them? I had no clue before <a href="http://www.tantek.com" class="fn url">Tantek &Ccedil;elik</a>&rsquo;s <a href="http://tantek.com/presentations/2006/06/microformats-evolution/" title="Tantek&rsquo; presentation about microformats">presentation</a> @media 2006, and now I&rsquo;m implementing them in this post. Microformats are virulent.</p>

<p>Basically you insert a few class names into your code, like</p>

<ol class="code">
    <li><code>&lt;p <strong>class=&quot;vcard&quot;</strong>&gt;</code></li>
    <li class="indent"><code>&lt;a <strong>class=&quot;url fn&quot;</strong><br />href=&quot;http://tantek.com&quot;&gt;<span class="codeSpace">&nbsp;</span>Tantek &Ccedil;elik&lt;/a&gt;</code></li>
    <li><code>&lt;/p&gt;</code></li>
</ol>

<p>There are microformats for <a href="http://microformats.org/wiki/hcard" title="The hcard microformat">contact cards</a>, <a href="http://microformats.org/wiki/hcalendar" title="The hcalendar microformat">calendars</a>, reviews, geo information, and many more. Even the Creative Commons license and the <acronym title="Platform for Internet Content Selection">PICS</acronym> label implemented in this page count as microformats. <acronym title="XHTML Friends Network">XFN</acronym> and <a href="http://microformats.org/wiki/xoxo" title="The XOXO microformat"><acronym title="Extensible Open XHTML Outlines">XOXO</acronym></a>, too.</p>

<p>You can parse this page through a <a href="http://feeds.technorati.com/contacts/http://www.learning-the-world.eu/2006/atmedia-day-two/">Technorati contacts feed service</a> or use a tool like the <a href="https://addons.mozilla.org/firefox/2240/">Tails extension for Firefox</a>, and voilÃ , there&rsquo;s a <em>vcard</em> you could import into your address book (if there wasn&rsquo;t this Thunderbird bug which prevents exactly this). With the <em>hcalendar</em> microformat you synchronize your calendar with event schedules on a website accordingly.</p>

<p>There are a few issues I ran into when I implemented hcards, and the documentation could have more examples, but they are on Tantek&rsquo;s to-do list. Also sometimes it means extra, non-semantic markup, but as microformats increase semantic meaning, I assume it gets Tim Berners-Lee&rsquo;s blessing. So go for it, microformats are definitely among the web&rsquo;s next big things!</p>

<h3 id="hot-topics">&ldquo;Hot topics&rdquo; panel</h3>

<p><a href="http://flickr.com/photos/martin-kliehm/171521326/in/set-72157594172244478/" title="Larger version of the panels photo on flickr"><img class="floatleft photo" src="/wp-content/uploads/2006/06/2006-06-16-panel-small" alt="Hot topics panel with Molly Holzschlag, Jon Hicks, Jeremy Keith, Eric Meyer, and Tantek &Ccedil;elik" width="200" height="150" /></a> I had the pleasure to meet <span class="vcard"><a href="http://www.molly.com" class="url fn" rel="met colleague">Molly Holzschlag</a></span> earlier in a coffee break, and while I was sorry I couldn&rsquo;t attend her session <a href="http://www.w3.org/blog/International/2006/06/19/internationalization_awakening_the_sleep" title="Molly Holzschlag&rsquo;s presentation"><acronym title="Internationalization">I18N</acronym>, awakening the sleeping giant</a>, I&rsquo;m confident I didn&rsquo;t miss much information as I am pretty familiar with her old articles in her regular column in <em>WebTechniques</em> and the current activity of the <acronym title="World Wide Web Consortium">W3C</acronym> <acronym title="internationalization">I18N</acronym> group, where she is a member.</p>

<p><a href="http://www.grochtdreis.de/weblog/index.php?id=P1049">Jens Grochtdreis</a> reports in his blog about the passionate presentation she gave earlier, and although there is more <a href="http://www.webtechniques.com/archives/2000/09/schwartz/" title="Howard Schwartz: Going Global &mdash; Hungry for New Markets">technical experience</a> and awareness in Europe with <a href="http://www.webtechniques.com/archives/2000/09/yunker/" title="John Yunker: Speaking in Charsets &mdash; Building a Multilingual Web Site">multilingual websites</a>, rarely they pay respect to <a href="http://www.webtechniques.com/archives/2000/09/lagon/" title="Olin Lagon: Culturally Correct Site Design">cultural differences</a>, like the meaning of <a href="http://www.webtechniques.com/archives/2000/09/desi/" title="Molly Holzschlag: Color My World">colors</a>. Molly gives everything to educate on <acronym>I18N</acronym> and promote web standards, she is also a member of <acronym title="The Web Standards Project">WaSP</acronym>. I&rsquo;m glad she seems to have found a way to get some help and support, as she is an outstanding, but sensitive person.</p>

<p>Anyway, she was part of the &ldquo;hot topics&rdquo; panel, where <a href="http://adactio.com/journal/1144/" title="Jeremy Keith about the panel">questions from the audience</a> where considered by a group of experts: Molly, Jon Hicks, Jeremy Keith, Eric Meyer, and Tantek &Ccedil;elik. They had a lot of fun and agreed <strong><acronym>CSS</acronym> has become more mainstream</strong> in the last year, as you don&rsquo;t have to defend <acronym>CSS</acronym> against table layout anymore. Well, reading the discussions in German forums and reviewing the code of other websites, there&rsquo;s still a lot of educational work to be done. Also they talked about the accessibility of <acronym>Ajax</acronym>, and mashups as the next big thing, but you can read a decent <a href="http://muffinresearch.co.uk/archives/2006/06/16/media2006-notes-hot-topics-panel/">transcript of the session</a> in Stuart&rsquo;s blog over at Muffinresearch.</p>

<h3 id="conclusions">Conclusions</h3>

<p>If you have followed me this far, you can see <strong>@media was a big inspiration</strong>, it was a lot of fun, especially the after event on Saturday, and I can only recommend the conference! There are endless <a href="http://flickr.com/search/?q=atmedia">flickr pictures</a> and quite a few <a href="http://technorati.com/search/atmedia">blog entries on Technorati</a> if you need further impressions. Um, and never mind the British food&nbsp;&hellip;</p>

<h3 id="presentations">More presentations</h3>

<p>Here are the presentations in the parallel track I couldn&rsquo;t attend. Also there will be <a href="http://learningtheworld.eu/2006/atmedia-slides/">pod- and videocasts</a> available soon.</p>

<ul>
    <li><a href="http://www.mezzoblue.com/presentations/2005/wdw/type/">Dave Shea: Fine typography on the web</a></li>
    <li><a href="http://www.andybudd.com/atmedia2006/bugs.pdf" type="application/pdf">Andy Budd: Bug hunting</a></li>
    <li><a href="http://simon.incutio.com/archive/2006/06/26/libraries"><abbr title="Document Object Model">DOM</abbr> Scripting: The Next Level</a></li>
    <li><a href="http://www.stuffandnonsense.co.uk/downloads/transcendingcss.pdf" type="application/pdf">Andy Clarke: The fine art of web design</a></li>
</ul>
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