scholarly journals Improved Usability of Aviation Automation Through Direct Manipulation and Graphical User Interface Design

2002 ◽  
Vol 12 (2) ◽  
pp. 153-178 ◽  
Author(s):  
David B. Kaber ◽  
Jennifer M. Riley ◽  
Kheng-Wooi Tan
Author(s):  
Giti Javidi

The hyperspectral microwave atmospheric sounder (HyMAS), for weather and climate missions, is capable of all-weather sounding equivalent to hyperspectral infrared sounders (in which clouds decrease the accuracy of the results) in clear air with vertical resolution of approximately 1 km. This will improve both the vertical and horizontal resolutions of the atmosphere. Through the use of independent RF antennas that sample the volume of the Earth's atmosphere through various levels of frequencies, thereby producing a set of dense, spaced vertical weighting functions, hyperspectral microwave is achieved. This yields surface precipitation rate and water path retrievals for small hail, soft hail, or snow pellets, snow, rainwater, etc. with high accuracies. One of HyMAS requirements is a graphical user interface (GUI). Hyperspectral measurements allow the user to determine the Earth's temperature with vertical resolution exceeding 1km (1093.61 yards).


Author(s):  
Todd J. Johnsgard ◽  
Stanley R. Page ◽  
Robert D. Wilson ◽  
Ronald J. Zeno

The purpose of the present study was to compare user performance, accuracy and preference while using standard user interface controls or “widgets” to complete specific types of tasks. Radio buttons were significantly faster, accurate, and preferred than any outer widget for the mutually exclusive selection tasks. For the non-mutually exclusive selection tasks, check boxes were significantly faster and preferred. These widgets were superior due to the fact that all possible options were initially visible. As the number of options increased, the time to complete each task also increased. A practitioner's table for selecting effective widgets for specific types of tasks is provided. Further implications for user interface design and research are discussed.


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