With regard to communication design, ergonomic characteristics were an
important issue. For example, paper afforded participants the opportunity to place
instructions much closer to the physical pieces to be assembled than instructions
viewed via computer monitor. Also, changing the communication of AR instructions
from a monitor to a laptop was followed by the time taken to assemble being reduced
by almost half. This may have been because participants could look at both the
physical pieces and the AR information without changing the inclination of their
views. The technical capability of transmission velocity was also an issue: with the
medium of paper being able to deliver information to participants more quickly than
either computer monitor or laptop screen. Further, it is possible that the utility of AR could have come to be socially defined after the studies had been completed. This is
because the participants who used AR offered many more criticisms than participants
who used VR graphics.