Aren chording solutions hard to learn?
Yes, they are. However, WordWise is not a chording solution. Chording refers to the need to press two keys at the same time, as with playing a chord on a piano. On a piano if you do not press all the keys in a chord simultaneously, the sound is incorrect (and you get extra notes). The keys must be pressed simultaneously. Chording has proved difficult to learn in numerous user interface studies. The use of the shift key in WordWise is not chording because it does not require that the shift key and the letter key be pressed simultaneously. The shift key can be pressed first, and held, and then the letter key can be pressed and the shift released (or held down for the next shifted letter). This is exactly how we type on a regular computer keyboard with a shift key. In contrast to chording, this is very easy for people to learn: everyone who has ever used a keyboard already knows how to do it without thought. There is no conceptual or motor learning required for users of WordWise when they
