This research is case study in the product
appliance company. The case study is door damage that
defect abnormalities. The research method used is the
DMAIC approach. From the stages of DMAIC (Define,
Measure, Analysis, Improve, Control). Activities starting
from identifying problems, measuring data from the
factors that influence, analyzing the factors that influence
it, followed by submitting improvement ideas and finally
controlling the improvements that have been made.
From the results of the case studies carried out there
are 4 factors that influence the quality of the door
damage consisting of insufficient material (inner door
hole), density of the urethane pattern material which is
quite low, the stability dimensions of urethane material
that are too high, inspection methods includes all
Keywords : DMAIC, Study Case, Door Defect.