Rafiki The Maker is a platform that was first made for desktop users, but feedback from users shows that most of them use their phones to access the platform. Accessing through the phone took them at least an extra 15 minutes to complete their task.
The size of the screen is the one thing that makes Uni-Level Tree challenging. In a very different way from Binary Tree, a user can have more than 3–10 people below them. In this case, it might be fine on a desktop or bigger screen, but it’s very narrow on a mobile.
I had developed a simple chart showing the device’s current user base. Then, I create a simple sketch to examine the screen view in various sizes and to visualise the view when we add the features discussed with stakeholders.