System of management at the enterprise

Quality of goods, works, services directly depends on quality of processes as a result of which they are created.

If you want to improve quality introduce systems of management:
ISO 9001:2009 (Systems of quality management)
ISO 14001:2006 (System of ecological management)
ISO 18001:2008 (OHSAS) (System of management of professional safety and health)
ISO 22000:2006 (System of management of safety of foodstuff)
ISO 50001:2012 (System of power management)