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Designing Tag
 Navigation
   November 2007
James Kalbach
 Human Factors Engineer LexisNexis

 Information Architect Razorfish Germany (2003)

 Library & Info Science Degree Rutgers University




 Designing Web Navigation
 (O‘Reilly, Aug 2007)
Metadata
The Navigation Layer




                       “   [Filters] help people
                           move from the world
                           they know (“hits”) to the
                           world they don’t
                           (“niches”)…
                                                    ”
                       “   Soon everything will
                           make it to the market
                           and the real opportunity
                           will be sorting it all out.
                                                     ”
1. Owner-Created Metadata


Pros
• Consistent terms
• Comprehensive

Cons
• Time intensive to create
• Maintenance
• Inflexible, rigid


Example:

  Controlled Vocabulary
2. Technically Generated Metadata

                               Cons
  Pros
                               • Can be inaccurate
  • Scales up
                               • Performance intensive
  • Quick, timely
                               • High cost to enter
  • Inexpensive to run




  Examples:    Entity Extraction
3. User-Generated Metadata


  Pros
  • Low maintenance
  • Self-generating organization
  • Low costs to get started
  • OK for an answer

  Cons
  • Lacks comprehensiveness
  • Requires incubation time
  • Navigating other's tags
    difficult


  Example:

     Tagging
Tagging ≠ Tag Cloud
Tagging Process
 Why do people tag?
 •  Re-find something of value
 •  Share a resource or object with others



 Three key stages of tagging
 1.  Creating tags
 2.  Using and managing your own tags
 3.  Using other people’s tags
1. Creating Tags
Encourage Tagging
 Make it easy to tag
Prompt for Tags
 Help people find words to use
Tag Form

Avoid space-separated tags

Newyearseveparty2007
iphone_review
to-read

Use comma-separated
2. Navigating Your
    Own Tags
Provide Different Views
 Let people navigate in different ways
Navigate Resources
 Allow people to search their resources
Combine Tags
 Allow people to combine two tags
3. Navigating
Other People‘s
    Tags
Enhance Tag Clouds
 Show context and provide structure
Mix Metadata
 Expose other types of relevant metadata
Show Tags for Resource
 Expose tags at the resource-level
Link to Other People
 Browse the resources of other members
Conclusions

  Tagging offers an alternative to top-down classification


  Tags are still just another type of metadata


  Tagging doesn’t necessarily mean using a tag cloud


  Understand the broader tagging context


  In designing a tagging system, three stages are critical:
      1. Creating tags
      2. Navigating your own tags
      3. Navigating the tags of others


  People must be able to navigate tags effectively
Thank You

www.ExperiencingInformation.com


 James.Kalbach@LexisNexis.com

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Designing Tag Navigation