Fitts’ Law from the KDE User Interface Guidelines

Summary

• Bigger Is Better for buttons, especially on toolbars.
• Use screen corners and edges.
• Macintosh-style menus are faster than Windows/Unix-style, because they’re on the screen edge.
• Never put a one-pixel non-clickable boundary around buttons on the screen edge.
• Circular (pie) popup menus are faster than linear popup menus.

Because they can’t be repeated enough.

Fitts’ Law from the KDE User Interface Guidelines

Summary

• Bigger Is Better for buttons, especially on toolbars.
• Use screen corners and edges.
• Macintosh-style menus are faster than Windows/Unix-style, because they’re on the screen edge.
• Never put a one-pixel non-clickable boundary around buttons on the screen edge.
• Circular (pie) popup menus are faster than linear popup menus.

Because they can’t be repeated enough.