[rayraegah]

“The Design of Everyday Things”. The book that sparked a change in my career (to be honest)

In programming, the analogous problem is API design: taking whatever data structures are used by a software tool internally, and figuring out how to present them to external programmers in a useful, intelligible way. If there’s a mismatch between the internal structure of the system and the structure of what-users-want, then it’s the API designer’s job to translate. A “good” API is one which handles the translation well.

User interface design is a more general version of the same problem: take whatever structures are used by a tool internally, and figure out how to present them to external users in a useful, intelligible way. Conceptually, the only difference from API design is that we no longer assume our users are programmers interacting with the tool via code. We design the interface to fit however people use it - that could mean handles on doors, or buttons and icons in a mobile app, or the temperature knobs on a fridge.