Instead of one long, continuous conversation with a single interviewer, you rotate through a series of short independent stations, usually 6 to 10 of them. Each station runs about 5 to 8 minutes with a new interviewer, a new prompt, and no knowledge of how you performed at the previous station.
Stations can include ethical dilemmas, role-plays with a trained actor, team-based tasks, or more traditional interview questions. They're designed to test how you think and communicate in the moment, not whether you land on some predetermined "correct" answer. Talking through your reasoning out loud, including the tradeoffs you're weighing, matters more than the specific conclusion you reach.