Grokking the System Design Interview, Volume II
Vote

0% completed

​

Step 2: Requirements

Most requirements in a flash sale follow from one fact: the stock runs out long before the requests do. The functional requirements describe what a buyer can do and what the system guarantees while they do it. The non-functional requirements describe the load the system must survive.

Functional requirements

  • Browse sale items. Users in any region see the sale products with their price and remaining stock. The stock shown is close to real time, but the count that decides a purchase is always checked again on the server.
  • Attempt a purchase. A user claims an item with one action

.....

.....

.....

Like the course? Get enrolled and start learning!

Reading Progress

0%

Vote for new content