Placing layout elements on the four edges of the screen allows for infinitely large targets in one dimension and therefore presents ideal scenarios. Since the pointer will always stop at the edge, the user can move the mouse with the greatest possible speed and still hit the target. The target area is effectively infinitely long along the movement axis. Therefore, this guideline is called “Rule of the infinite edges”. The use of this rule can be seen for example in MacOS, which always places the menu bar on the top left edge of the screen instead of the current program's windowframe.
Placing layout elements on the four edges of the screen allows for infinitely large targets in one dimension and therefore presents ideal scenarios Since the pointer will always stop at the edge the user can move the mouse with the greatest possible speed and still hit the target The target area is effectively infinitely long along the movement axis Therefore this guideline is called “Rule of the infinite edges” The use of this rule can be seen for example in MacOS which always places the menu bar on the top left edge of the screen instead of the current program's windowframe