Grokking Microservices for System Design Interviews

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Capstone: Drawing E-commerce Boundaries

1. The Exercise

"Design the service architecture for a mid-size e-commerce company: catalog browsing, cart, checkout, payments, inventory, shipping, and customer notifications. Around 200 engineers. Where are your service boundaries, and why?"

This capstone is the whole module rolled into one exercise. Sketch your own split before you read on. For each boundary, write down the one-line reason you would give an interviewer. Then compare your answer with the one below.

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