IE577_lecture7

IE577_lecture7 - IE/PSY 577 Session 7 Human Reliability...

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IE/PSY 577 Session 7 Human Reliability Analysis
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IE/PSY 577 Session 7 Reliability Analysis Compute system reliability from 2 Model of system structure Component reliabilities
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IE/PSY 577 Session 7 Serial and Parallel Systems A C B 3 C B A
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IE/PSY 577 Session 7 Reliability Analysis Components in series: R = (r 1 )x(r 2 )x…(r n ) 4 Components in parallel: R = 1 - [(1-r 1 )(1-r 2 )….(1-r n )]
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Reliability of a Serial System 5
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Reliability of a Parallel System 6
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IE/PSY 577 Session 7 Hybrid Models R 1 R 2 Input Output 7 R 3 R 4 R 3 R 2 R 1 Input Output
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IE/PSY 577 Session 7 Human Reliability Analysis Analogous to machine reliability analysis nalyze human tasks and estimate 8 Analyze human tasks and estimate error probabilities for each Enter probabilities into system model to obtain overall human reliability
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IE/PSY 577 Session 7 Human Error Probability The number of errors made by the human divided by the number of pportunities for such errors. 9 opportunities for such errors. Human Reliability 1 - (human error probability)
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IE/PSY 577 Session 7 Computational Method Describe System Identify potential errors
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IE577_lecture7 - IE/PSY 577 Session 7 Human Reliability...

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