1. Kevin Merritt Alexei Bespalov Barrett Rodgers
Crossing Techniques
Kevin Merritt
Alexei Bespalov
Barrett Rodgers

2. Initial Sketches
Starting the Design process

4. Timer
-Movement even inside target cancels selection.
-Cursor must move outside and back in target again to reactivate timer.

6. Cross target
Path appears on target
Cross path before it disappears

7. Cross and cross-back with hover widget:
This method simply uses the cross and cross-back method, but expands it by adding a hover widget after the cursor pauses that shows available options for the chosen target.

8. Triple cross:
Is very easy to do with a trackball, as all
it takes is the user moving his hand
through the target, and then back and
forth where he came from. For example
if the user crosses the target moving up
with the cursor, he only has to pull the
track ball down and push it back up.

9. The double right angle:
Sine the right angle method has been shown to be very fast and effective for goal crossing, but has a low level of safety, by adding a second right angle it increases safety of the method, while only taking away slightly from the methods quickness.

10. Cross in, then cross out over portion corresponding to selection
New options appear
Cross out again
More options appear
Cross out over last option to select

11. Cross in, then cross out over portion corresponding to selection
New circle appears
Cross out again
Cross out over last option to select

12. Cross in, then cross out over quadrant corresponding to selection

13. Cross into target zone, quadrant of options appears
Cross out to activate
Note how the quadrant circle is larger in diameter

14. Flip Books
“Tunnel”

15. Selecting the Center Goal

41. Flip Books
“Tripple Cross”

42. Prototype Demo
Triple Cross

43. Results
User Testing

44. User Testing Two Subjects Used non-dominant hand
Measured time to select target from initial cross
Counted crossings of detractor targets

45. Results

46. Results