Transcript Enterprise Taxonomy Project

Taxonomy Strategies LLC
Metadata: Defining & Harnessing
Ron Daniel, Jr.
Principal, Taxonomy Strategies LLC
Nov. 20, 2009
Copyright 2009 Taxonomy Strategies LLC. All rights reserved.
Metadata and Taxonomy
Each list is a “controlled
vocabulary”. The Taxonomy is the
set of all the controlled
vocabularies.
Audience
Metadata
Title
Internal
Executives
Managers
External
Suppliers
Customers
Partners
Author
Department
Audience
Topic
Topics
Employee Services
Compensation
Retirement
Insurance
Further Education
Finance and Budget
Products and Services
Support Services
Infrastructure
Supplies
Metadata is data about data – in our case it is
a set of fields of library catalog-like data
about published content..
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Metadata and Faceted Taxonomies
Main
Ingredients
•
•
•
•
•
•
•
•
•
•
Chocolate
Dairy
Fruits
Grains
Meat &
Seafood
Nuts
Olives
Pasta
Spices &
Seasonings
Vegetables
Meal Type
•
•
•
•
•
•
Breakfast
Brunch
Lunch
Supper
Dinner
Snack
Cooking
Methods
Cuisines
•
•
•
•
•
•
•
•
•
•
•
African
American
Asian
Caribbean
Continental
Eclectic/
Fusion/
International
Jewish
Latin American
Mediterranean
Middle Eastern
Vegetarian
•
•
•
•
•
•
•
•
•
•
•
•
•
Advanced
Bake
Broil
Fry
Grill
Marinade
Microwave
No Cooking
Poach
Quick
Roast
Sauté
Slow
Cooking
• Steam
• Stir-fry
42 values to maintain (10+6+11+15)
9900 combinations (10x6x11x15)
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What makes a bad taxonomy?
The animals are divided into:
(a) belonging to the emperor,
(b) embalmed, (c) tame, (d) sucking pigs, (e)
sirens, (f) fabulous, (g) stray dogs,
(h) included in the present classification,
(i) frenzied, (j) innumerable, (k) drawn with a very
fine camelhair brush, (l) et cetera, (m) having just
broken the water pitcher,
(n) that from along way off look like flies.
Jorge Luis Borges, " THE ANALYTICAL
LANGUAGE OF JOHN WILKINS"
Works in 3 volumes (in Russian). St. Petersburg,
"Polaris", 1994. V. 2: 87.
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Facets simplify hierarchies
Business
Biotechnology &
Pharmaceuticals
Education &
Training
Regional
Europe
Ireland
Business &
Economy
Employment
Health & Medical
Reference
Education
Colleges &
Universities
North America
United States
Maryland
Reference
Education
K-12
Home Schooling
Unschooling
Chats and Forums
Science
Math
Academic
Departments
South America
Colombia
Society
People
Women
Science &
Technology
Mathematics
Science
Social Sciences
Linguistics
Translation
Associations
Business
Small Business
Finance
Business
Accounting
Firms
Business
Employment
By Industry
Business
Healthcare
Employment
Columbia
Union College
Athletics
Competency (discipline)
11
Geography
9
Audience
9
Topic
7
Accounting
Organization
5
Directories
Doc Type
4
Industry
4
Process
4
Regional
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Metadata used in search
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Universal facets and partial facets
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Limits on facet displays
Most facets are
hidden!
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Modern websites rely on metadata
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Who decides what metadata is needed?
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Where does metadata come from?
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What does it cost to create metadata?
Consider complexity of facet and
ambiguity of content to estimate time
per value.
Taxonomy Facet
Hier?
Typical
CV Size
Time/
Value
(min)
Machine-filled
fields have costs
too.
Avg #
values /
Item
$ / Min
Cost/
Element
Audience
N
10
0.25
2
$
0.42
$
0.21
Content Type
N
20
0.25
1
$
0.42
$
0.11
Organizational Unit
Y
90
N//A
1
$
0.42
Products & Services
Y
500
1.5
4
$
0.42
$
2.52
Geographic Region
Y
100
0.5
2
$
0.42
$
0.42
Broad Topics
Y
400
2
4
$
0.42
$
3.36
1080
5
15
$
7.04
TOTALS
N/A
Is this field
worth the
cost?
Estimated cost of tagging one item. This can be reduced
with automation, but cannot be eliminated.
Inspired by: Ray Luoma, BAU Solutions
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Can we get machines to make metadata for us?
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How much metadata do I need?
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Can we get machines to make taxonomies for us?
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Can we get users to make taxonomies for us?
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Where else might we find taxonomies?
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Um, is someone managing all this?
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How do I start?
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Taxonomy Strategies LLC
Contact Info
Ron Daniel, 925-368-8371
[email protected]
Nov. 20, 2009
Copyright 2009 Taxonomy Strategies LLC. All rights reserved.