A Lean Six Sigma Yellow Belt is an individual who has attained a basic knowledge of Six Sigma, but does not lead projects on their own. They are often responsible for the development of process maps to support Six Sigma projects. A Yellow Belt participates as a core team member or subject matter expert (SME) on a project or projects. In addition, Yellow Belts may often be responsible for running smaller process improvement projects using the PDCA (Plan, Do, Check, Act) methodology. PDCA, often referred to as the Deming Wheel, which enables Yellow Belts to identify processes that could benefit from improvement. These smaller Yellow Belt projects often get escalated to the Green Belt or Black Belt level, where a DMAIC methodology is used to maximize cost savings utilizing Statistical Process Control.