**3.1 Determining the problem and organizing the experiment team**

When a new product is to be developed, there is no need for any examination for the work to be done. If an existing product is to be developed, "why was this product chosen?" The question must be answered. Generally as an answer to this question; scrap, rework, warranty and service costs can be given. After the problem is determined, the team that will do the task should be formed. The team generally; It consists of experts of the problem of interest, DOE experts, senior management representative and people who will conduct the experiment. The other steps we try to explain below are carried out by this team.
