<Li> Black Belts operate under Master Black Belts to apply Six Sigma methodology to specific projects . They devote 100% of their valued time to Six Sigma . They primarily focus on Six Sigma project execution and special leadership with special tasks, whereas Champions and Master Black Belts focus on identifying projects / functions for Six Sigma . </Li> <Li> Green Belts are the employees who take up Six Sigma implementation along with their other job responsibilities, operating under the guidance of Black Belts . </Li> <P> According to proponents of the system, special training is needed for all of these practitioners to ensure that they follow the methodology and use the data - driven approach correctly . </P> <P> Some organizations use additional belt colours, such as Yellow Belts, for employees that have basic training in Six Sigma tools and generally participate in projects and "White belts" for those locally trained in the concepts but do not participate in the project team . "Orange belts" are also mentioned to be used for special cases . </P>

Which of the following is not a core step of six sigma