Interface for an App—The design rationale leading to an app that allows someone with Type 1 diabetes to self-manage their condition

This book is an account of how I addressed the need for a smartphone app that would allow someone with Type 1 diabetes to self-manage their condition. Its presentation highlights the major features of the app’s interface design. They include the selection of metaphors appropriate to a user’s need to form a mental model of the app; the importance of visible context; the benefits of consistency; and considerations of a user’s cognitive and perceptual abilities. The latter is a key feature of the b