There are various methods and tools used, when applying and implementing Six Sigma, whose aim is to establish
basic levels of process performance. The measurement of the process performance within the Six Sigma
methodology is oriented at the searching of process errors and disagreements. With the Six Sigma methodology, it is
possible to control the existing process by the means of improving method DMAIC, (Define - Measure - Analyze -
Improve – Control). DMAIC model was used in critical processes of furniture production with varying degrees of
implementation of quality management system. The methods and tools used in the project Six Sigma, according to
the steps of DMAIC are presented in Table 1.