Research of quality impact to the product design properties and characteristics

This paper deals with developed methodology toverify and estimate product quality in its life cycle phases.It is able to act and appraise the errors and their probabilityin product and process development and production stages,and influence of the human factor to originate errors. Thedeveloped mathematical formalization of an aggregateerror mutation among all product development phaseshelps to find the reasons of errors accumulation in organization.The created research contains a case study.