Anderlohr

When using learning curves, it is important to be able to quantify the effects of a non-continuous/interrupted production run.  Mr. Anderlohr divided learning lost into five categories: Personnel Learning, Supervisory Learning, Continuity of Production, Methods, and Special Tooling.  The user has the ability to specify the importance of each of these categories by weighting them accordingly.  The user then has the ability to input the amount of learning lost for each category. For example, if half of the employees who worked on the previous production run have been laid off, 50% of personnel learning has been lost.  If 2 of the 5 production lines have been torn down, 40% of continuity of production has been lost.

ProcBox then uses the Retrograde Method to determine the impact of the production break on the learning curve.  ProcBox uses the user provided first and last unit prior to the production break, as well as the user provided learning curve percentage, to calculate the equivalent unit number on the learning curve that most closely represents the hours after the production break.  ProcBox uses this data to estimate unit learning curve of the propose production lot.