RADIO gives you a repeatable structure for any frontend design question.
Requirements (R): Clarify functional and non-functional needs ( min)
Architecture (A): High-level component diagram ( min)
Data Model (D): State structure and entities ( min)
Interface (I): API contracts and component props ( min)
Optimizations (O): Performance, accessibility, security (- min)
You don't need to follow this order rigidly. Architecture, Data, and Interface often overlap. But RADIO ensures you cover everything interviewers evaluate.