User interactions with the PDQ cancer information system.
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Medical Library Association
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Abstract
Searches by end users and intermediaries on the online PDQ
(Physician Data Query) cancer information system were observed.
With the National Library of Medicine (NLM) menu-based interface,
end users (physicians) averaged fewer steps per question, while with
the BRS command-drive interface, intermediaries appeared to be
more efficient. Cancer Information Service (CIS) searchers, who have
more PDQ experience than end users or intermediaries, made greater
use of command stacking to anticipate menu selections. Retrieval was
more complete in the NLM system, where both the menus and
predefined print formats assisted the searchers.
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Shaw, D., & Czaja, R. F. (1992). User interactions with the PDQ cancer information system. Bulletin of the Medical Library Association, 80(1), 29-35.
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