HUMAN PERFORMANCE

MAT, a Multi-Attribute Task battery from NASA Langley Research Center,
gives the researcher the capability of performing multitask workload and
performance experiments. The battery provides a benchmark set of tasks for
use in a wide range of laboratory studies of operator performance and
workload. MAT incorporates tasks analogous to activities that aircraft
crew members perform in flight, while providing a high degree of
experiment control, performance data on each subtask, and freedom to use
non-pilot test subjects. The MAT battery primary display is composed of
four separate task windows: a monitoring task window which includes gauges
and warning lights, a tracking task window for the demands of manual
control, a communication task window to simulate air traffic control
communications, and a resource management task window which permits
maintaining target levels on a fuel management task. In addition, a
scheduling task window gives the researcher information about future task
demands. The battery also provides the option of manual or automated
control of tasks. The task generates performance data for each subtask.
The task battery may be paused and onscreen workload rating scales
presented to the subject. The MAT battery was designed to use a serially
linked second computer to generate the voice messages for the
Communications task; however The MAT battery task computer may also be
used independent of the voice computer.

MAT, LAR-14904, is written in QuickBasic and assembly language for IBM PC
series and compatible computers running MS-DOS. The code in MAT is written
for Microsoft QuickBasic 4.5 and Microsoft Macro Assembler 5.1. This
package requires a joystick and EGA or VGA color graphics. An 80286, 386,
or 486 processor machine is highly recommended. The standard distribution
medium for MAT is a 5.25 inch 360K MS-DOS format diskette. The files are
compressed using the PKZIP file compression utility. PKUNZIP is included
on the distribution diskette. Program $200; documentation $16.

COSMIC
The University of Georgia
382 East Broad St, Athens, GA 30602-4272
706-542-3265,  FAX: 706-542-4807

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