[Tagbert]

Touch and mouse are complementary inputs that must be included. Working on a Windows laptop with touch and an iPad with Magic Keyboard have convinced me of that.

Don’t make the mistake of thinking that having touch means you only use touch. Same for a mouse/trackpad pointer. Each has strengths and weaknesses and it better at some tasks than others. The pointer is good for clicking on small UI elements or doing small movements. It suffers with larger movements across the screen. Touch is good for scrolling, zooming, tapping buttons, tabs, and sometimes links. It’s good for jumping around the screen and moving things.

The keyboard is a third input/control interface and can be even faster and more precise than the mouse pointer. When the mouse first came on the scene, people derided it as less efficient than a keyboard and complained that you had to move your fingers away from the keyboard to use one. They swore they would never use one.

Where these work best is a mix of input modes using different ones for different scenarios. Having a mix if broad and precise inputs means you don’t need to tailor the whole interface for just precision or just broad strokes. The interface can be designed to accommodate the presentation of information and let the choice of inputs be up to the user. A side benefit of having difference input modes is that your hands move in different ways for each. You are less subject to repetitive stress from doing the same hand motion for everything.