The document defines risk and risk-based thinking according to ISO 9001:2015. It discusses identifying risks and opportunities, both internal factors like strengths and weaknesses, as well as external factors like political, economic, social, and technological issues. It also covers tools for risk analysis like the risk register and risk assessment methods like the preliminary risk assessment and FMEA. The goal is to incorporate risk-based thinking into all aspects of the quality management system as outlined in ISO 9001:2015.