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  &lt;p&gt;The other night I went to the official launch of an exciting new site called the &lt;a href="http://schoolofeverything.com"&gt;School of Everything&lt;/a&gt;,&#160;which has been in beta for a few months.&#160;&lt;/p&gt;
  &lt;p&gt;Best described as &#8216;the Ebay of Learning&#8217;, the School of Everything&#160;is a marketplace / meeting point for people who have something to teach and those that want to learn.&#160;&lt;/p&gt;
  &lt;p&gt;Educational matchmaking spiced up with a touch of social networking, the School is such a deceptively simple idea that you wonder why someone hasn&#8217;t done it before, and I predict that it will be a great success.&#160;&lt;/p&gt;
  &lt;p&gt;
    &lt;a href="/blog/2314-channel-4-invests-in-school-of-everything"&gt;Backed by Channel 4 Education&lt;/a&gt;, among others,&#160;it is growing at a rapid rate and has the potential to snowball through a natural viral buzz around the service from enthusiastic learners and teachers.&#160;&lt;/p&gt;
  &lt;p&gt;The other thing that intrigued me when they showed the site was the &lt;strong&gt;format of the navigation &lt;/strong&gt;when you delve into the categories of topics available to learn.&#160;&lt;/p&gt;
  &lt;p&gt;It is one of the few sites I have come across where the information architecture is based on both a traditional top down categorisation created by the company / organisation, containing sub categories created by the users themselves (bottom up tag clouds based on the number of people offering to teach a certain topic).&#160;&lt;/p&gt;
  &lt;p&gt;
    &lt;img alt="" src="http://farm4.static.flickr.com/3230/2826946303_057c547df8_o.png" /&gt;
  &lt;/p&gt;
  &lt;p&gt;As shown in the image, there are standard categories such as Arts &amp;amp; Craft, Driving &amp;amp; Transport, Environment etc.&#160;&lt;/p&gt;
  &lt;p&gt;Under those are tag clouds with topics relatively-sized according to the number of teachers (Photoshop is larger than oil painting for example).&#160;There is already a tag cloud for the popular topics at the side of the page by the way.&lt;/p&gt;
  &lt;p&gt;
    &lt;img alt="tag cloud" src="http://farm4.static.flickr.com/3185/2827783652_91e195ca15_m.jpg" /&gt;
    &lt;br /&gt;
    &lt;br /&gt;
Perhaps problematically, some subtopics are listed under more than one main category.&#160;Driving, for instance, is under both Work &amp;amp; Business and also Driving &amp;amp; Transport.&#160;Yoga is listed under Mind, Body &amp;amp; Spirit and also Home &amp;amp; Lifestyle and also Sport &amp;amp; Fitness.&#160;There are many examples of this cross categorisation of the specific topics.&#160;&lt;/p&gt;
  &lt;p&gt;The School is not unique in doing this &#8211; Ebay does this in their suggestion of categories, although the taxonomy they support is more complex and multi level.&#160;But there is a potential downside to this type of &lt;a href="http://www.uservision.co.uk/services/information-architecture/ "&gt;information architecture&lt;/a&gt;.&lt;/p&gt;
  &lt;p&gt;
    &lt;img alt="" src="http://farm4.static.flickr.com/3225/2827783528_40cfb4a247_o.png" /&gt;
    &lt;br /&gt;
    &lt;br /&gt;
In many usability tests I have seen, users become confused by polyhierarchical placement as it causes a dilemma &#8211; &lt;em&gt;is the Sports &amp;amp; Fitness yoga different, or better than the other two?&#160; &lt;/em&gt;&lt;/p&gt;
  &lt;p&gt;
    &lt;em&gt;Why is it in&#160;two different places? &lt;/em&gt;Suddenly the user subconsciously creates a subtask for themselves (&#8220;Well, I better go check them all out and try to figure out why that is the case and which one is best for me&#8230;&#8221;).&#160;&lt;/p&gt;
  &lt;p&gt;Such dilemmas can sow seeds of doubt about the structure of the content and distract users as they answer such questions.&#160;And obviously far more confusing for screen reader users hearing the same topic in many categories, although the site does have a search engine that will hopefully be a good route for finding content.&lt;br /&gt;&lt;br /&gt;
Personally, I have not come across too many sites that try to combine a top down structure of traditional categories with user driven bottom up user-driven subcategories.&#160;&lt;/p&gt;
  &lt;p&gt;
    &lt;em&gt;Have you seen other sites that do this?&lt;/em&gt;&#160;&lt;em&gt;Do you think the polyhierarchical placement of items will help or hinder the user experience in the long run?&#160;&#160;&lt;/em&gt;&lt;/p&gt;
  &lt;p&gt;The best proof is in the performance of the site or evidence that can be gathered in &lt;a href="http://www.uservision.co.uk/services/usability-testing/ "&gt;usability tests&lt;/a&gt;, but I&#8217;d be interested in your thoughts.&lt;/p&gt;
  &lt;p&gt;
    &lt;strong&gt;
      &lt;em&gt;Chris Rourke is the MD of&#160;&lt;a href="http://www.uservision.co.uk"&gt;User Vision&lt;/a&gt;.&lt;/em&gt;
    &lt;/strong&gt;
  &lt;/p&gt;
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  &lt;Paragraph&gt;The other night I went to the official launch of an exciting new site called the &lt;Link URL="http://schoolofeverything.com" Window="Self"&gt;School of Everything&lt;/Link&gt;,&#160;which has been in beta for a few months.&#160;&lt;/Paragraph&gt;
  &lt;Paragraph&gt;Best described as &#8216;the Ebay of Learning&#8217;, the School of Everything&#160;is a marketplace / meeting point for people who have something to teach and those that want to learn.&#160;&lt;/Paragraph&gt;
  &lt;Paragraph&gt;Educational matchmaking spiced up with a touch of social networking, the School is such a deceptively simple idea that you wonder why someone hasn&#8217;t done it before, and I predict that it will be a great success.&#160;&lt;/Paragraph&gt;
  &lt;Paragraph&gt;
    &lt;Link URL="/blog/2314-channel-4-invests-in-school-of-everything" Window="Self"&gt;Backed by Channel 4 Education&lt;/Link&gt;, among others,&#160;it is growing at a rapid rate and has the potential to snowball through a natural viral buzz around the service from enthusiastic learners and teachers.&#160;&lt;/Paragraph&gt;
  &lt;Paragraph&gt;The other thing that intrigued me when they showed the site was the &lt;Emphasis&gt;format of the navigation &lt;/Emphasis&gt;when you delve into the categories of topics available to learn.&#160;&lt;/Paragraph&gt;
  &lt;Paragraph&gt;It is one of the few sites I have come across where the information architecture is based on both a traditional top down categorisation created by the company / organisation, containing sub categories created by the users themselves (bottom up tag clouds based on the number of people offering to teach a certain topic).&#160;&lt;/Paragraph&gt;
  &lt;Paragraph&gt;
    &lt;Image Source="http://farm4.static.flickr.com/3230/2826946303_057c547df8_o.png"&gt;
    &lt;/Image&gt;
  &lt;/Paragraph&gt;
  &lt;Paragraph&gt;As shown in the image, there are standard categories such as Arts &amp;amp; Craft, Driving &amp;amp; Transport, Environment etc.&#160;&lt;/Paragraph&gt;
  &lt;Paragraph&gt;Under those are tag clouds with topics relatively-sized according to the number of teachers (Photoshop is larger than oil painting for example).&#160;There is already a tag cloud for the popular topics at the side of the page by the way.&lt;/Paragraph&gt;
  &lt;Paragraph&gt;
    &lt;Image AlternateText="tag cloud" Source="http://farm4.static.flickr.com/3185/2827783652_91e195ca15_m.jpg"&gt;
    &lt;/Image&gt;
    &lt;LineBreak /&gt;
    &lt;LineBreak /&gt;
Perhaps problematically, some subtopics are listed under more than one main category.&#160;Driving, for instance, is under both Work &amp;amp; Business and also Driving &amp;amp; Transport.&#160;Yoga is listed under Mind, Body &amp;amp; Spirit and also Home &amp;amp; Lifestyle and also Sport &amp;amp; Fitness.&#160;There are many examples of this cross categorisation of the specific topics.&#160;&lt;/Paragraph&gt;
  &lt;Paragraph&gt;The School is not unique in doing this &#8211; Ebay does this in their suggestion of categories, although the taxonomy they support is more complex and multi level.&#160;But there is a potential downside to this type of &lt;Link URL="http://www.uservision.co.uk/services/information-architecture/ " Window="Self"&gt;information architecture&lt;/Link&gt;.&lt;/Paragraph&gt;
  &lt;Paragraph&gt;
    &lt;Image Source="http://farm4.static.flickr.com/3225/2827783528_40cfb4a247_o.png"&gt;
    &lt;/Image&gt;
    &lt;LineBreak /&gt;
    &lt;LineBreak /&gt;
In many usability tests I have seen, users become confused by polyhierarchical placement as it causes a dilemma &#8211; &lt;Quote&gt;is the Sports &amp;amp; Fitness yoga different, or better than the other two?&#160; &lt;/Quote&gt;&lt;/Paragraph&gt;
  &lt;Paragraph&gt;
    &lt;Quote&gt;Why is it in&#160;two different places? &lt;/Quote&gt;Suddenly the user subconsciously creates a subtask for themselves (&#8220;Well, I better go check them all out and try to figure out why that is the case and which one is best for me&#8230;&#8221;).&#160;&lt;/Paragraph&gt;
  &lt;Paragraph&gt;Such dilemmas can sow seeds of doubt about the structure of the content and distract users as they answer such questions.&#160;And obviously far more confusing for screen reader users hearing the same topic in many categories, although the site does have a search engine that will hopefully be a good route for finding content.&lt;LineBreak /&gt;&lt;LineBreak /&gt;
Personally, I have not come across too many sites that try to combine a top down structure of traditional categories with user driven bottom up user-driven subcategories.&#160;&lt;/Paragraph&gt;
  &lt;Paragraph&gt;
    &lt;Quote&gt;Have you seen other sites that do this?&lt;/Quote&gt;&#160;&lt;Quote&gt;Do you think the polyhierarchical placement of items will help or hinder the user experience in the long run?&#160;&#160;&lt;/Quote&gt;&lt;/Paragraph&gt;
  &lt;Paragraph&gt;The best proof is in the performance of the site or evidence that can be gathered in &lt;Link URL="http://www.uservision.co.uk/services/usability-testing/ " Window="Self"&gt;usability tests&lt;/Link&gt;, but I&#8217;d be interested in your thoughts.&lt;/Paragraph&gt;
  &lt;Paragraph&gt;
    &lt;Emphasis&gt;
      &lt;Quote&gt;Chris Rourke is the MD of&#160;&lt;Link URL="http://www.uservision.co.uk" Window="Self"&gt;User Vision&lt;/Link&gt;.&lt;/Quote&gt;
    &lt;/Emphasis&gt;
  &lt;/Paragraph&gt;
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  <created-at type="datetime">2008-09-04T11:32:00+01:00</created-at>
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  &lt;p&gt;
    &lt;strong&gt;The innovative School of Everything offers a great chance to learn from others like you.&#160; &lt;/strong&gt;
  &lt;/p&gt;
  &lt;p&gt;But will its combination of user-generated and company-generated navigation help or hinder findability in the long run?&lt;/p&gt;
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  &lt;Paragraph&gt;
    &lt;Emphasis&gt;The innovative School of Everything offers a great chance to learn from others like you.&#160; &lt;/Emphasis&gt;
  &lt;/Paragraph&gt;
  &lt;Paragraph&gt;But will its combination of user-generated and company-generated navigation help or hinder findability in the long run?&lt;/Paragraph&gt;
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  <learn-more-formatted>&lt;p&gt;Refer also to Econsultancy's &lt;strong&gt;&lt;a href="http://econsultancy.com/reports/user-experience-buyers-guide"&gt;User Experience Buyer's Guide&lt;/a&gt;&lt;/strong&gt; and &lt;strong&gt;&lt;a href="http://econsultancy.com/reports/effective-web-design-best-practice-guide"&gt;Effective Web Design Guide&lt;/a&gt;&lt;/strong&gt; for more information about best practice in these areas.&lt;/p&gt;</learn-more-formatted>
  <learn-more-unformatted>&lt;p&gt;Refer also to Econsultancy's &lt;strong&gt;&lt;a href="http://econsultancy.com/reports/user-experience-buyers-guide"&gt;User Experience Buyer's Guide&lt;/a&gt;&lt;/strong&gt; and &lt;strong&gt;&lt;a href="http://econsultancy.com/reports/effective-web-design-best-practice-guide"&gt;Effective Web Design Guide&lt;/a&gt;&lt;/strong&gt; for more information about best practice in these areas.&lt;/p&gt;</learn-more-unformatted>
  <legacy-article-id type="integer">366270</legacy-article-id>
  <name>IA: Bottom up meets top down in School of Everything</name>
  <private type="boolean">false</private>
  <published-at type="datetime">2008-09-05T10:00:00+01:00</published-at>
  <slug>ia-bottom-up-meets-top-down-in-school-of-everything</slug>
  <tweetbacks-updated-at type="datetime">2009-04-30T03:52:01+01:00</tweetbacks-updated-at>
  <unpublished-at type="datetime" nil="true"></unpublished-at>
  <updated-at type="datetime">2009-10-13T09:46:38+01:00</updated-at>
  <views-count type="integer">382</views-count>
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