Which element comes after 'Purpose' in the order of priorities for app design?

In app design, after establishing the 'Purpose', the next priority is 'Structure'. This reflects the foundational layout and organization of the app. 'Structure' is concerned with how the app’s content is arranged and how the various components relate to each other. It sets the framework that allows users to navigate and interact with the app effectively.

A well-defined structure ensures that users can find what they need without confusion and that related functionalities are grouped logically. This approach builds on the 'Purpose' element by supporting it with a coherent design that facilitates user engagement and satisfaction.

The other elements, while important, come after 'Structure' in the design hierarchy. 'Surface' refers to the visual aesthetic and interface, 'Flow' involves the user’s journey and interactions within the app, and 'Simplicity' emphasizes ease of use and intuitive navigation—all of which rely on a solid structural foundation to function effectively.