xping

正好刚考完part1还有些印象，hock用的是Incremental Unit-Time Learning Model 而gleim用的是Cumulative Average-Time Learning Model

There are two learning-curve models:

• Cumulative Average-Time Learning Model - evaluates the average time per unit required to produce a given number of units

80% learning curve, and if the time required to build the first automobile is 10 hrs, then the total time required to manufacture the first 2 autos will be 80% * 10 * 2=16 hrs, or an average of 8 hrs for each automobile for first 2 autos.

• Incremental Unit-Time Learning Model - evaluates the time needed to produce the last unit in a quantity of units.

80% learning curve rate and requires 10 hours to build the first automobile. The time required to manufacture the second auto will be 80% *10=8 hrs. Thus, the total time required to produce first 2 autos is 10+ 8=18 hrs. And the average time per unit will be 18 ÷ 2=9 hrs.

这个题并没有确切指出用哪种model。