I started with clarifying questions which felt right, like what triggers the notification, what channels are supported, what scale we're talking about.
Start by clarifying the user problem and business goal, then propose a simple solution and iterate based on trade-offs. Structure your answer around user needs, technical feasibility, and measurable impact, showing how you'd prioritize features and validate with data.
Pro tip: Anchor your design in Amazon's leadership principles like Customer Obsession and Invent & Simplify, and explicitly discuss how you'd measure success with metrics like notification open rate and opt-out rate.
Ask questions to understand the context: what type of website, target users, and what 'notify me' means (e.g., restock alerts, new content). Define the core user need and business objective.
Outline a simple end-to-end flow: user opts in, chooses notification channels (email, SMS, push), and receives alerts. Mention key components like preference center and notification service.
Compare channels (cost, immediacy, reliability) and decide on MVP vs. future phases. Consider scalability, latency, and personalization trade-offs.
Identify metrics like opt-in rate, notification open rate, conversion rate, and opt-out rate. Explain how you'd use A/B testing to optimize.
Cover spam concerns, privacy compliance (GDPR, CAN-SPAM), and failure handling (e.g., retries, fallback channels).
AI-generated suggestions, not part of the candidate's original notes. May be inaccurate — verify before relying on them.