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The quality of the products is a sum of functions, features and useful properties that make the product to satisfy a social need and thus to be appreciated be the user. Quality involves requirements of technical, economic, aesthetic, ergonomic nature, whose content evolves in step with social needs and is measured by the degree of utility and economic efficiency provided by the product within the scope of its users. One of the methods used to improve quality is Quality Function Deployment (QFD), which is a process...