Bowman’s Locomotion Taxonomy
·
Three determining
factors:
o
Direction/Target
Selection
Selecting a target directly
Selecting a direction in which to travel
o
Velocity/Acceleration
Discreet speeds
Continuous
range (eg “gas-pedal”)
Acceleration
– sudden changes in velocity may be disorienting or cause sickness or loss of
balance
o
Input conditions
Factors
such as whether motion is continuous or start/stop.
·
Not much
attention given to “system” considerations in the taxonomy
·
Each node in the
hierarchy is judged according to a set of “performance metrics”
o
Speed
o
Accuracy
o
Spatial Awareness
o
Ease of learning
o
Ease of use
o
Information
Gathering
o
Sense of
immersion
o
User Comfort
·
Bowman validates
the effectiveness of various locomotion techniques using a vast number of
experiments which use the above, and other, metrics
One of Bowman’s experiments:
users have to navigate through this 3D corridor, performing various tasks.