The thesis was commissioned by PKC Group Ltd. The purpose of this thesis was to create a digital version of the product audit for the Enstructor application. This would also standardize product audit. The differences between the digital and paper audit method were compared during the thesis and future developments for the Enstructor were also examined. The history of quality and different quality standards was also covered in this thesis.

As a result of this thesis the product audit in Enstructor application is now in use at PKC Group's factories in Europe and South America.