The challenge
How do we provide a universally understandable user interface that clearly communicates how many units of Insulin you last injected as well as the time since your last injection. How do we integrate the new technology and yet preserve the design heritage and usability of the injecting pen.
The solution
The solution was to differentiate the two types of information using both scale and font size. We also included a visual separating line that isolated the last dose injected size from the time since last injection. This line refers to the surrounding lens frame geometry of the dose display on the pen assisting the user in recognizing the information as Dose related. A white ‘look here’ ring was also included on the new interface window to align with the dose dialing indicator line in the dose window.