In this module, you will be reviewing several key terms and tools that are used in patient safety and quality improvement. This will allow you to begin to develop the common language used among patient safety and quality improvement experts and practitioners. By the end of this module you will be able to: 1) differentiate between the terms harm, hazard, error and risk within a patient safety and quality improvement framework, 2) describe how quality and safety overlap and how they are different and 3) differentiate between root cause analysis and a failure mode and effects analysis.