The Importance of Human Centered Apps

The primary goal is to position objects comfortably in all dimensions. By default windows should be positions within the user line of sight relative to their head direction. Content should also be placed further than arms reach to ensure easy visibility and access but also avoid placing content too high or too low with which would make it difficult to see and reach. The third point for a human center is of course the movement you know design experiences that require minimal movements since many users might have limited mobility.