This research explores the analysis of the optimum setting for the noise (80dB, 77dB, 80dB), temperature
(18°C, 24°C, 34°C) and illumination (155lux, 200lux, 300lux) to optimize manually envelope folding jobs
productivity. The analysis that will be implemented here is design experiments factorial method to
determine the significant factors that influence manually envelope folding jobs productivity. Also, the
response surface method will be applied to obtain the approximation model for manually envelope
folding jobs productivity as a function of the factor found earlier so that the most optimum result can be
obtained under a design optimization method.
Keywords : productivity, experiments design, factorial design, response surface
