This document provides an overview of ISO 9001:2015 for quality management systems. It discusses the seven quality management principles and the ten clauses of the ISO standard. The principles are customer focus, leadership, engagement of people, process approach, improvement, evidence-based decision making, and relationship management. The ten clauses cover the scope, leadership, planning, support, operation, performance evaluation, and improvement aspects of an effective quality management system. The document provides explanations of the key elements within each clause.