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Use of job aid to promote systematic search under different levels of task complexity
Author(s) -
Koenig Scott,
Gramopadhye Anand K.,
Melloy Brian J.
Publication year - 2002
Publication title -
human factors and ergonomics in manufacturing and service industries
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.408
H-Index - 39
eISSN - 1520-6564
pISSN - 1090-8471
DOI - 10.1002/hfm.10022
Subject(s) - pointer (user interface) , computer science , cursor (databases) , artificial intelligence
Job aids of various kinds have improved visual‐inspection performance. In particular, these job aids include a dynamic pointer that traces a systematic scan path across a search field. The efficacy of this specific job aid, however, has only been verified under a limited set of conditions. Moreover, the effectiveness of this job aid is a function of the speed of the pointer. Thus, it remains to be determined what pointer speeds will yield the best performances under a wide range of conditions. These conditions are defined here by four of the following task‐complexity factors: background density, fault rate, target conspicuity, and fault mix; the performance measure used is search accuracy. In general, increasing either the speed of the cursor or task complexity degraded accuracy, and the optimal pointer speed was specific to the conditions. © 2002 Wiley Periodicals, Inc.