Chapter07s - MSB 354 7S Learning Curves 6-1 Learning...

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MSB 354 7S Learning Curves 6-1
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7S-2 Learning Objectives Explain the concept of learning curves Make time estimates based on learning curves List and briefly describe some of the main applications of learning curves Outline some of the cautions and criticisms of learning curves Estimate learning rates from data on job times
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7S-3 Learning curves explains the phenomenon the time required to perform a task decreases with increasing repetitions. Most learning curves assume that a constant percentage reduction occurs as the number of units produced is doubled. Unit Produced Unit Time (hours) (Under the learning rate of 80%) 1 10 2 0.8(10) = 8 4 0.8(8) = 6.4 8 0.8(6.4) = 5.12 Learning Curves
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7S-4 Learning Effect Time per repetition Number of repetitions Figure 7S.1
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Learning with Improvements 7S-5 Improvements may create a scallop effect in the curve. Time per unit Time Average Figure 7S.2 scallop effect in the curve explains the temporary increase in time per unit until workers adjust to the change.
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Chapter07s - MSB 354 7S Learning Curves 6-1 Learning...

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