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System Design Flow

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Rajon
Rajon

The document outlines a 3 step system design flow: 1) Understand the problem and scope by defining use cases, features, and constraints. 2) Think about constraints such as requests per month/second, read/write percentages, and data storage needs. 3) Design an abstract system with layers for service, data and caching, infrastructure components, and algorithms to address bottlenecks.

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System Design Flow 1. Understand the problem and scope: - define the use cases, with interviewer's help - suggest additional features - remove items that interviewer deems out of scope - assume high availability is required, add as a use case 2. Think about constraints: - ask how many requests per month - ask how many requests per second (they may volunteer it or make you do the math) - estimate reads vs. writes percentage - keep 80/20 rule in mind when estimating - how much data written per second - total storage required over 5 years - how much data read per second 3. Abstract design: - layers (service, data, caching) - infrastructure: load balancing, messaging - rough overview of any key algorithm that drives the service - consider bottlenecks and determine solutions

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System Design Flow