Welcome to the topic of continuous quality improvement (CQI)! CQI: Overview is a video course intended to provide an introduction into the world of CQI in the workplace. This video lesson, The Types of Quality Certification, is the last of three. The viewer will learn about the two main types of certifications, the disagreement in the Lean and Six Sigma bodies of knowledge, and the different certification authorities. Overall, this lesson emphasizes the importance of being certified in order to establish that your organization and processes are credible.