021004taskanalys

021004taskanalys - 16.422 Human Supervisory Control...

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16.422 Human Supervisory Control Function Allocation and Task Analysis
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Human Systems Engineering 16.422 Planning Analysis Detail Design Test & Evaluation
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16.422 Planning Mission & Scenario Analysis Function Analysis Function Allocation Task Analysis System Design Analysis Design Test & Evaluation
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Fitts’ List 16.422 Attribute Machine Human Speed Superior Comparatively slow Power Output Superior in level in consistency Comparatively weak Consistency Ideal for consistent, repetitive action Unreliable, learning & fatigue a factor Information Capacity Multi-channel Primarily single channel Memory Ideal for literal reproduction, access restricted and formal Better for principles & strategies, Reasoning Computation Deductive, tedious to program, fast Inductive, easier to program, slow, accurate, good error correction Sensing Good at quantitative assessment, poor at pattern recognition Wide ranges, multi-function, judgment Perceiving Copes with variation poorly, susceptible to noise Copes with variation better, susceptible to noise Hollnagel, 2000 inductive and deductive . Induction is usually described as moving from the specific to the general, while deduction begins with the general and ends with the specific; arguments based on experience or observation are best expressed inductively, while arguments based on laws, rules, or other widely accepted principles are best expressed deductively.
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Some problems with Fitts… • Tasks/functions defined in machine terms, not human-oriented – Introduces a bias – “Laws of human behavior” • Environmental/ecologic context • Learning, fatigue, stress, anxiety generally not incorporated into design picture • Task division vs. task complement • Static vs. dynamic allocation – Adaptive allocation/automation – Function allocation is not binary 16.422 • Bandwidth •Trust • Machine/computer metaphors
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Designing automation to support information processing 16.422 Human Sensory Processing Response Selection Decision Making Perception/ Working Memory Information Acquisition Action Implementation Decision & Action Selection Information Analysis Automation *Parasuraman, Sheridan, Wickens, 2000
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A Model of Types and Levels of Automation* Information Acquisition Action Implementation Decision & Action Selection Information Analysis What should be automated? Identify types of automation Identify levels of automation Apply primary evaluative criteria: Human Performance Consequences • Mental workload • Situation awareness • Complacency • Skill degradation Apply secondary evaluative criteria:
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This note was uploaded on 11/07/2011 for the course AERO 16.410 taught by Professor Brianwilliams during the Fall '05 term at MIT.

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021004taskanalys - 16.422 Human Supervisory Control...

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