Finally, to allow users to communicate to the interface and designer about their needs, Zoomie created a quick-tips walkthrough of the operating system to tell users that the icons customizable. If some users didn’t want to have a really large icon for their email application, then they could make it smaller. Or, if the users wanted to prioritize the information presented by their phone, they could arrange tiles and applications on their home screen based on what they care about most. To further improve the communication between Zoomie and his intended users, he even traveled around and performed 'communication case studies' in which he sat with new users as they unboxed and booted up their new phones, and explained his intentions and understanding of them as they interacted with the new product.



The customization and communication of Zoomie’s design decisions to the users allowed the users and designer to communicate through the new operating system he designed. The interactive language embedded in Zoomie’s design helps users perform the tasks they want and need to do-- which, in the end, is what Human Centered Design & Engineering is all about.