BU385 Lecture 9: BU-375 Lecture 9

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9 Apr 2019
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BU-375 Lecture 9
Learning Curve Phenomenon
Practice makes perfect
Past experience indicates that individuals learn by experience (i.e. get better at the job by
carrying out the tasks more and more)
This phenomenon was first reported by T.P. Wright in 196
Learning Curves
A learning curve, or improvement curve, is a graph that reflects the fact that as workers repeat
their tasks, they will improve performance
Predictability of Learning Curves
Processing time per unit decreases by a constant percentage each time output doubles
o i.e. doubling the units produced results in a 10% - 20% reduction in task time
o Expressed as the complement of decrease rate:
i.e. a 10% decrease in time -> 90% learning curve
% = slope of the learning curve
Time required for nth unit produced
Where:
= time required for the nth unit produced
= time required for 1st unit produced
= the cumulative number of units produced
= 
 where r = learning curve %

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