Designing a Human Machine Interface for Quality Assurance in Car Manufacturing: An Attempt to Address the “Functionality versus User Experience Contradiction” in Professional Production Environments

Table 9

The worker’s statements about the devices.

Device	Pro	Contra
Smartphone	Wiping is great; The idea with the list assistant is great (++); Wiping is state of the art; Statistics are very good; Device feels faster than current device	Hand strap missing. Gives an additional feeling of safety at work; Statistics do not increase motivation; You have to adapt to the wiping first
Data glasses		Very stressful due to poor projection quality; Burning eyes; Uncomfortable and heavy to wear it; The noseband is very pressing; Problematic projection with white-coloured vehicles; Hardware is not ready-made to use; Not suitable for people with glasses
Current PDA		Sideways keys are difficult to operate; The device could be a little lighter; Slow screen refresh, hangs and is bulky