Supplier quality is the ability of a supplier to deliver goods or services that meet customer needs. Supplier quality management is defined as a system that maintains supplier quality using a proactive and collaborative approach. It is in the best interest of the company to ensure that the service or material suppliers of the company are providing the highest quality products and services in accordance with the pre-established requirements. This is often accomplished through Supplier Quality Management Systems (QMS), which allows companies to monitor supply chains and regularly inspect or audit materials and services.