Comparing Google Glass with Tablet-PC as Guidance System for Assembling Tasks

Head mounted displays (HMDs) can be used as an guidance system for manual assembling tasks: contrary to using a Tablet-PC, instructions are always shown in the field of view while hands are kept free for the task. This is believed to be one of the major advantage of using HMDs. In the study reported here, performance, visual fatigue, and subjective strain was measured in a dual task paradigm. Participants were asked to follow a toy car assembly instructions while monitoring a virtual gauge. Both tasks had to be executed in parallel either while wearing Google Glass or using a Tablet-PC. Results show slower performance on the HMD but no difference in subjective strain.