A Verification and Analysis of the USAF/DoD Fatigue Model and Fatigue Management Technology

Abstract

We verified the Windows(trade name) software application of the Sleep, Activity, Fatigue, and Task Effectiveness (SAFTE) applied model. The application, the Fatigue Avoidance Scheduling Tool (FASTTM) was re-engineered as a clone from the SAFTE specification. The verification considered nine sleep/wake schedules that were representative of applications of the fatigue model. Of the nine, eight were considered fully verified in the sense that the clone's output matched FAST's output well, or the differences in the clone and FAST outputs could be understood as an implementation choice. The ninth schedule was very nearly verified and seemed to require only a minor adjustment to FAST for fall verification. One of the benefits of the verification process was an analysis of how FAST implementation choices impacted predictions relative to simpler implementation choices made by the clone. Most of these implementation differences lead to inconsequential prediction differences; however, the difference highlighted by schedule 7 bears farther consideration.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 2005
Accession Number
ADA443545

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  • Scott Chaiken

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  • Air Force Research Laboratory

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  • Circadian Sleep-Wake Regulation and Chronobiology
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