ISO 9001 is a quality management system based on principles such as customer focus, continual improvement, system approach to management and involvement of people. The other four ISO 9001 principles are leadership, process approach, factual approach to decision making, and mutually beneficial supplier relationship.
Organizations that have implemented ISO 9001's standards can ask independent certification bodies to verify whether they comply with the standard. The International Organization for Standardization, or ISO, published ISO 9001 in 1987 and updated the standard in 1994, 2000, 2008 and 2015. ISO also develops and maintains standards about environmental management, in ISO 14000; social responsibility, in ISO 26000; and risk management, with ISO 31000, among others. ISO is an international membership organization with the goal to facilitate international trade.