Answers to any interview question has three distinct parts: beginning, middle, and end. Each part requires different skills and techniques to deliver a solid answer.

Irrespective of the question type, this high-level flow holds true. Keeping a track of what's expected of you in these three stages helps denote more time and resources to actual content vs "how should I structure this''. 

#1 Beginning: The beginning lays the groundwork for your answer. Here you'll:

1. Map to the question a product situation to figure out the approach 
2. Understand the business goal (what outcome we want by redesigning the product or tracking metrics etc)
3. Define the scope and constraints: Is this a global or US-only product? Does it impact the complete experience or just one feature? What are the technical limitations?

The beginning is where frameworks and theories shine. They provide the structure to guide your thought process - helpful questions to ask and a logical flow. However, avoid using heavy frameworks, as frameworks by nature over index on beginning - right structure, extensive set of questions etc, without enough attention to the subsequent two parts.

#2 Middle: Once you've the structure you want to follow, the actual work begins - brainstorming ideas, analyzing tradeoffs, and prioritizing solutions. This is where your on-the-feet thinking and problem solving ability comes into play.

#3 End: This is the stage where you step back, conclude, and state how you could be wrong. This is your chance to showcase your experience, expertise, and thoughtful approach. Couple of things to keep in mind:

• When concluding note touch only to major points - goal, solution, and 1 other item. Don't take more than 1-2 minutes. 
• Present the downsides as areas of further exploration and work: customer survey to access business value, engineering deep-dive to estimate implantation cost, speaking to privacy and legal team etc 

Next we'll deep dive into tactics for each part.

Most good candidates get the beginning right. But it's the middle and the end that set the truly outstanding ones apart.