A Michael F. Schwartz 

A Alan Emtage 

A Brewster Kahle 

A B. Clifford Neuman 

T A Comparison of Internet Resource Discovery Approaches 

D Fall 1992 

P 461-493 

K CUDCS 

X Earlier version appeared as TR CU-CS-601-92, July 1992 

J Computing Systems 

K USENIX Journal, resource discovery taxonomy, tax, systems, RD,
dimensions: object granularity, object distribution, object
interconnection topology, and data integration scheme,
information retrieval, IR 

K Archie, Prospero, WAIS, Netfind, X.500, Gopher, WWW, Indie,
DLS, Alex, AFS, Univers 

X Available from
ftp:ftp.cs.colorado.edupubcstechreportsschwartzRD.Comparison.ps.Z
or
ftp:ftp.cs.colorado.edupubcstechreportsschwartzRD.Comparison.txt.Z 

X "In the past several years, the number and variety of resources
available on the Internet have increased dramatically.  With this
increase, many new systems have been developed that allow users
to search for and access these resources.  As these systems begin
to interconnect with one another through "information gateways",
the conceptual relationships between the systems come into
question. Understanding these relationships is important, because
they address the degree to which the systems an be made to
interoperate seamlessly, without the need for users to learn the
details of each system.  In this paper we present a taxonomy of
approaches to resource discovery.  The taxonomy provides insights
into the interrelated problems of organizing, browsing, and
searching for information.  Using this taxonomy, we compare a
number of resource discovery systems, and examine several
gateways between existing systems."