24. FItts’s Law
Fitts's Law is basically an empirical
model explaining speed-accuracy
tradeoff characteristics of human
muscle movement with some analogy to
Shannon’s channel capacity theorem.*
*Mehmet Göktürk, associate professor at the Department of Computer Engineering, Gebze
Institute of Technology in Turkey
25. FItts’s Law
T is the time to reach target.
D is the distance to the target.
W is the width of the target.
26. FItts’s Law
T is the time to reach target.
D is the distance to the target.
W is the width of the target.
27. FItts’s Law
T is the time to reach target.
D is the distance to the target.
W is the width of the target.
28. FItts’s Law
T is the time to reach target.
D is the distance to the target.
W is the width of the target.
29. FItts’s Law
T is the time to reach target.
D is the distance to the target.
W is the width of the target.
30. FItts’s Law
T is the time to reach target.
D is the distance to the target.
W is the width of the target.
37. Ux standards
both google and apple have already been
dealing with fitts’s law for 7 years on mobile
38. Ux standards
both google and apple have already been
dealing with fitts’s law for 7 years on mobile
different designs, styles, and principles but
similar approach to interactive element sizing
52. Steering Law
…The steering law is a predictive model of human
movement, concerning the speed and total time with which
a user may steer a pointing device (such as a mouse or
stylus) through a 2D tunnel presented on a screen (i.e. with
a bird's eye view of the tunnel), where the user must travel
from one end of the path to the other as quickly as possible,
while staying within the confines of the path. One potential
practical application of this law is in modeling a user's
performance in navigating a hierarchical cascading menu.
75. takeaways
Try to keep interactive elements over 44x44px.
Padding is your friend.
76. takeaways
Try to keep interactive elements over 44x44px.
Padding is your friend.
Space out buttons and links to prevent mis-clicks.
77. takeaways
Try to keep interactive elements over 44x44px.
Padding is your friend.
Space out buttons and links to prevent mis-clicks.
What’s good for mobile is good for desktop.
78. takeaways
Try to keep interactive elements over 44x44px.
Padding is your friend.
Space out buttons and links to prevent mis-clicks.
What’s good for mobile is good for desktop.
Test, test, test!