Representing Data Quality on Naval Tactical Displays

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Authors
  1. McFadden, S.
  2. Li, A.
  3. Trinh, K.
Corporate Authors
Defence R&D Canada - Toronto, Toronto ONT (CAN);Waterloo Univ, Waterloo ONT (CAN)
Abstract
Multi-Source Data Fusion (MSDF), as developed under COMDAT, provides an assessment of the reliability of the estimate of the fused track’s attributes and position. Part of the human factors work under COMDAT has been to investigate methods of representing the quality of the MSDF-generated tracks to the operator. The research reported in this paper is concerned with the potential impact of different representations of data quality or uncertainty on the visibility of tactical symbols and the intuitiveness of the different representations. Three methods of representing uncertainty were investigated: a variably filled bar presented beside the track symbol, different diameter rings that encompassed the tactical symbol, and varying the saturation of the tactical symbol itself. In the first experiment, a visual search task was used to compare the accuracy and speed with which participants could locate multiple instances of each of the tactical symbols without any representation of uncertainty and with each of the three methods tested. The second experiment examined the ability of participants to quickly and consistently interpret the quality of the data represented by the tactical symbol as a function of the three different methods. The results indicated that the bar interfered least with people’s ability to locate the tactical symbols, but the saturation method was most consistently interpreted. A second set of experiments looked at whether using the saturation method to redund

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Keywords
symbology;uncertainty;Navy;tactical displays;visual search;classification;data quality
Report Number
DRDC-TORONTO-TR-2007-032 — Technical Report
Date of publication
01 Jan 2008
Number of Pages
60
DSTKIM No
CA030439
CANDIS No
528986
Format(s):
Electronic Document(PDF)

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