The IAASC Certified Lean Six Sigma Yellow Belt™ (ICYB™) is a professional who is well versed in the foundational elements of the Lean Six Sigma Methodology, who leads limited improvement projects and / or serves as a team member as a part of more complex improvement projects lead by a Certified Green Belt or Certified Black Belt, typically in a part-time role. A Lean Six Sigma Yellow Belt possesses a thorough understanding of the elementary aspects of the Lean Six Sigma Method including competence in the subject matters contained within the phases of Define, Measure, and Control (DMC) as defined by the IASSC Lean Six Sigma Yellow Belt Body of Knowledge™. A Lean Six Sigma Yellow Belt understands how to implement, perform, interpret, and apply Lean Six Sigma in a skilled yet limited and/or supportive context.