A Quality Management System (QMS) is a system that outlines the policies and procedures necessary to improve and control the various processes that will ultimately lead to improved business performance.


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A system can be structured at the following levels:

  • Policy (mission, vision and strategy) and line management
  • System procedures: primary and secundary processes
  • Operational procedures
  • Work documents for activities or task to do






A Quality Management System (QMS) is a web of interconnected processes. Each process uses resources to turn inputs into outputs. And all of these processes are interconnected by means of many input-output relationships. Every process generates at least one output, and this output becomes an input for another process. These input-output relationships glue all of these processes together - that's what makes it a system.



An example of a primary process of a company MacProduct for the production of a packed hamburger.IDEF0 UK 2Analysing the primary process of MacProduct results in a chain of activities for transforming ingredients (material - input) and an customer order (information - input) into a packed hamburger (product - output).