The present study describes a methodology to apply the DOE (Design of Experiment) techniques. To show its application, a simple case was prepared that can be used as a training in industrial environments. In this case, fractional factorial designs were applied and the effects and interactions that influence the analyzed response were determined. The analysis of the data was done both manually and through the use of the statistical software MINITAB. The case study shown can be a useful tool to stimulate the use of DOE techniques in the industry. Keywords: Design of Experiment, DOE, training, factorial design, methodology.