Case: Hick's Law

We've placed a menu system on our word scanning device, which means we need to make sure that the design of it is appropriate. A way to calculate the time it takes for the user to make a decision, such as selecting a menu item, was outlined in Hick's Law.

The law takes into account the probability of certain menu items being selected; as not all the menus will have an equal probability. For example, with our design, the 'Read word' menu will be clicked more times that the Sound On/Off menu item, as it is a fundamental part of the system.

By ordering the menus (like we have) in order of the probability that they will be clicked, we are ensuring that the time it takes for the user to make a decision is shorter.

Link to the website I got this information from is available here.