A system for monitoring and visualizing the output of a production process, whose output materials or items are inspected by one or more inspection units, may include a communication module to receive data from the one or more inspection units. The received data may be associated with a measured or extrapolated value of at least one parameter of the inspected materials or items. A comparator module may compare at least one of the measured or extrapolated values against a corresponding stored value to determine a difference value, and a visualization module may generate an image representing the inspected items or materials. An area or section of the image corresponding to an area or section of the item or material associated with the at least one of the measured or extrapolated values which was compared to the stored value may be visually coded to indicate a corresponding difference value.