Service Classification Taxonomy

Generic Query Planning

QP-Professional

QP-School

QP-Science

QP-HighSchool

QP-School-Science

QP-HighSchool-Biology

QP-School-Astronomy

Increasingly specific search

Digital libraries

UMDL

Nested ontologies

Agent services

(dynamic)

Increasingly general search

automatic classification

The University of Michigan, Ann Arbor, Site Visit May 21, 1997

UMDL

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