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Randy B. Morris

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Publications by Randy B. Morris (bibliography)

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1993
 
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Whitmore, Mihriban, Morris, Randy B., Vaubel, Kent P. and Mount, Frances E. (1993): Space Station Maintenance Workstation Development. In: Proceedings of the Human Factors and Ergonomics Society 37th Annual Meeting 1993. pp. 47-51.

Space Station Maintenance Workstation will be used to support equipment servicing and repair operations. The Maintenance Workstation provides different work area configurations, giving open workbench or a contained area. Up to five operators can work at the workstation simultaneously. A series of Maintenance Workstation evaluations have been conducted at NASA Johnson Space Center to determine the critical design issues relating to human-machine interfaces. A primary goal of this work was to verify whether the proposed design accommodated a wide range of users and maintenance task requirements under microgravity conditions. The tests were conducted onboard NASA's KC-135 microgravity aircraft. Three crew and six non-crew subjects participated in the studies. Tasks performed during the evaluations consisted of reach sweeps, force/torque task, soldering, handling large objects and lens replacement. Each session was videotaped for post-flight observations. In addition, subjects were asked to fill out a questionnaire following the flight. These microgravity evaluations were complemented by the computer modeling of different statures to investigate the viewing, reach, and head clearances. Results indicate that the size and location of the glove ports, and the enclosed work volume are the critical design concerns. The approach, findings and implications of the study are discussed.

© All rights reserved Whitmore et al. and/or Human Factors Society

1992
 
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Whitmore, Mihriban, Aldridge, Ann M., Morris, Randy B., Pandya, Abhilash K., Wilmington, Robert P., Jensen, Dean G. and Maida, James C. (1992): Integrating Microgravity Test Data with a Human-Computer Reach Model. In: Proceedings of the Human Factors Society 36th Annual Meeting 1992. pp. 1249-1253.

Future space vehicles such as the Space Station Freedom will be equipped with computers that have direct manipulation capabilities. The human factors challenge is to provide an optimal human-systems interface which will accommodate a wide range of users and tasks in a microgravity environment. A series of experiments have been conducted by the Man-Systems Division at Johnson Space Center to resolve anthropometric issues related to human reach capabilities and limitations impacting workstation design. To facilitate this goal, two approaches, "Performance-based" and "Model-based" analyses, were integrated to investigate the human reach mapped onto the workstation display panels. Microgravity maximum reach sweep data were collected onboard NASA's KC-135 Reduced Gravity Aircraft. A three-dimensional (3-D) interactive graphics system, PLAID, was used to generate anthropometrically correct human computer models. Video tapes recorded during the flights were used to extract information for positioning each human representation in the computer model relative to the workstation. The approach, findings and implications of the evaluations are discussed in the paper.

© All rights reserved Whitmore et al. and/or Human Factors Society

 
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25 Feb 2010: Modified
26 Jun 2007: Added
26 Jun 2007: Added

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May 19

Design can be art. Design can be aesthetics. Design is so simple, that's why it is so complicated.

-- Paul Rand, 1997

 
 

Featured chapter

Read the fascinating history of Wearable Computing, told by its father, Steve Mann

Read Steve's chapter !

 
 

Help us help you!