Welcome to your interview.
The question is on your right: Validating Design Decisions. Take a moment with it first.
Talk your thinking through with me if you like - when you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes). Discussion and graded submissions share your five interviewer interactions, so spend them well.
How did you validate your design decisions at Trend Micro? What metrics or user feedback did you rely on?