Screenflows were created for each task, to explore different interaction concepts. The concepts were iterated with the client and clinical specialists. Identity concepts explored branding, user interface components, and opportunities to integrate with the hardware.

Once the screen and interaction design direction was roughly defined, a prototype was created for evaluation by the team and customers. The design was iterated over a few rounds of prototype development, until the user interface was finalized.

Final icons, user interface components, and screens were specified; and the prototype was used to specify the interaction design.