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1©2003 Louis Rosenfeld LLC. All rights reserved.
DCMI 2003 Pre-Conference Workshop: Metadata and Search
DC-2003Seattle, WashingtonSeptember 28, 2003
Louis Rosenfeldwww.louisrosenfeld.com
2©2003 Louis Rosenfeld LLC. All rights reserved.
I Am…
Information architecture (IA) consultant; formerly president Argus Associates
Co-author, Information Architecture for the World Wide Web (1998, 2002)
Co-founder and Director, Asilomar Institute for Information Architecture (www.aifia.org)
Background in librarianship/information science; Fortune 500 bias
3©2003 Louis Rosenfeld LLC. All rights reserved.
Metadata:The Post-Cathartic Perspective
“Meta-data is not just about structured data anymore.”-- Robert Seiner
Publisher, The Data Administration
Newsletter
(http://www.tdan.com/i024fe01.htm, 4/03)
4©2003 Louis Rosenfeld LLC. All rights reserved.
Metadata:The Weary Soldier’s Perspective
“I've decided that good metadata is too expensive for most documents. If you can get an effective title and date on all your important documents, you should declare victory and go out for a beer.”
-- Walter Underwood
Principal Architect, Verity Ultraseek
(Personal communication, 9/03)
5©2003 Louis Rosenfeld LLC. All rights reserved.
Metadata: The All-Too-Common Perspective
“Our information management and access problems will be solved by push search engine personalization CMS implementation metadata.”-- Anonymous CIO
MegacorpSometime during the
Early Web Age
6©2003 Louis Rosenfeld LLC. All rights reserved.
Diagnosis: A malady called Silverbulletitis
Common affliction among senior managers
Evidenced by • Single-minded preoccupation with a
specific technology or approach• Belief that such an approach comprises a
solution• Constant presence of product literature,
pens, mugs, plush toys, and other assorted vendor schwag
7©2003 Louis Rosenfeld LLC. All rights reserved.
Metadata as Silver Bullet:Think again
Inter-cataloger inconsistency (Medline study)
Approximately 10% of humanly assigned index terms do not occur in full text; worth the investment to address?
Structural interoperability of metadata attributes (DC can help)
Semantic merging of metadata values (significant challenge)
8©2003 Louis Rosenfeld LLC. All rights reserved.
Metadata in Business Setting:Think again
Business cultures not used to cooperating
Time on task: e.g., six minutes per document X 1M documents = 62.5 FTE for one year
Lack of best practices for centralized services (e.g., tagging)
Lack of robust tools for metadata management (whither MMS?)
Lack of expertise: non-pros doing the work
9©2003 Louis Rosenfeld LLC. All rights reserved.
Metadata: Part of the AnswerAvailable from: http://www.louisrosenfeld.com/home/bloug_archive/images/EIAroadmap.pdf
10©2003 Louis Rosenfeld LLC. All rights reserved.
So Where and When Should We Apply Metadata?
Begs more questions1. For which content should we develop and
apply metadata?
2. How qualified/experienced are those who own content/apply that metadata?
3. Which metadata attributes should we develop?
4. Which metadata vocabularies should be controlled?
11©2003 Louis Rosenfeld LLC. All rights reserved.
Selecting Content for Metadata: The Value Tier ApproachDetermine value tiers of content quality
that make sense given your users/content/context
How to do it?1.Prioritize and weight quality criteria for
different content areas2.Rate content areas (subjectively and
objectively)3.Cluster into tiers
12©2003 Louis Rosenfeld LLC. All rights reserved.
The Value Tier Approach:Potential quality criteria
Select appropriate criteria for your business context, users, and content• Authority• Strategic value • Currency• Freshness• Usability• Popularity/usage• Feasibility• Presence of quality existing metadata
13©2003 Louis Rosenfeld LLC. All rights reserved.
Value Tier Approach:Weighting and scoring
14©2003 Louis Rosenfeld LLC. All rights reserved.
Value Tier Approach:Prioritization
15©2003 Louis Rosenfeld LLC. All rights reserved.
Content Workflow:Process and ownership
Evaluate content management centralization, owner sophistication
Integrate results into content value tiers
16©2003 Louis Rosenfeld LLC. All rights reserved.
Attribute Selection:Match content, appropriate subset
17©2003 Louis Rosenfeld LLC. All rights reserved.
Controlled Vocabularies:CV or not CV?
18©2003 Louis Rosenfeld LLC. All rights reserved.
Contact Information
Louis Rosenfeld LLC902 Miller AvenueAnn Arbor, Michigan 48103 USA
+1.734.663.3323 voice+1.734.661.1655 fax