Notes
Outline
One Stop Shopping
Is Universal Access Really What We Want?
Mary S. Woodley
California State University, Northridge
Internet Librarian Nov. 6 2000
Rev. 11/12/00
What Do We Mean by
 “One-Stop Shopping”?
A Gateway that allows the user to search seamlessly multiple information resources simultaneously with a single search query
A single search interface that can access all information available in any standard format: MARC, EAD, TEI, GILS, DC; and, present the results in a useable format
One-Stop Shopping: Ideal
What does it include?
Beyond the traditional OPAC holdings
Entire Universe of Knowledge?
Resources that the library or institution has paid for and what is free on the Web and can be captured by search engines
Role of Libraries’ Online Systems
OPAC serves as a portal to the Universe of Information or
Portal to the Information Universe of which library OPACs  are a subset
Motivations for One-Stop Shopping
Circumvents 2 of the primary problems facing patrons:
Which database(s) are the most appropriate to use
Finding specific databases either in long A-Z lists or buried in menu lists
Re-enforces the sense of interdisciplinary research
Compensates for lack of knowledge of search strategies or controlled vocabularies for individual databases
Assumptions about One-Stop Shopping
Information world at one’s finger tips: all the relevant results with one search
Number of hits is a good indication of the value of the database
Patrons will understand how to group/select databases
Valuable first-step in the research process
What One-Stop Shopping Ignores
Domain or community specific fields and controlled vocabulary
How servers interpret queries
Limitations of mappings
Granularity
Books in Union catalogs & Chapters in books
Journals & articles in journals
Full-text resources
Websites
Two Z39.50 Projects
SearchLight UC
Pharos CSU
Z39.50:
ISO 23950 and ANSI/NISO Z39.50 standard information retrieval protocol, a client/server-based protocol for searching and retrieving information from remote databases.
Pharos
Unified Information Access System
Pharos: capabilities & future enhancements
Quick Search
Search by Subject
Multi-Source Search
Multi-Source Search Result
PHAROS KeyWord Result
Problems facing Pharos Implementation:
SearchLight – UC Project
SearchLight
SearchLight - Select
Results Sorted by Categories of Materials
Supports Interdisciplinary Research
Differences in results based on Server interpretation of request from Client.
PsycInfo 12,461 Hits
Searching PsycInfo Directly
Access to Thesaurus to Refine Search
More Specific Search: Books
More Specific Search: Journals
Connection Problems
Strengths of Z39.50 cross-database searching
Benefits to the One-Stop Shopping
Weaknesses of Z39.50 Cross-database Searching
Drawbacks to One-Stop Shopping
User Study Needed
Bibliographic Instruction