Augmentative and Alternative Communication (AAC) devices, are tools that children and adults who are non-verbal or have difficulty speaking can use to communicate with others. When learning how to use one of these devices it can be challenging because there are too many things on the screen at the same time.

This client has tried a few things to direct attention to one or a few tiles of the TD snap Motor Plan 66 screen (https://www.tobiidynavox.com/pages/td-snap-motor-plan) and has found that a physical object and tactile feedback has worked the best. They are currently using a keyguard on the iPad (with a case) with a cube that looks like a key. It is placed in a spot in the keyguard to sit over a tile on the screen. The cube has a metal top which is connected to a tip of a stylus which is in contact with the screen, so that it registers a touch when a finger is placed on the cube. What is missing is the tactile feedback that comes from pushing a button.

Your task is to design a keyguard/key combination that will fit on an iPad with a case to highlight one or more tiles on the screen. The key must move to give tactile feedback. It must also be able to select on a touchscreen and not damage it. It must be sturdy and resist rough handling. It should be able to unclip and move to a different location on the keyguard. Ideally keys would have different colors to match tile colors on the screen.