Estimation Techniques

This skill provides frameworks for back-of-envelope calculations essential for system design and capacity planning.

When to Use This Skill

Keywords: back-of-envelope, estimation, QPS, storage calculation, bandwidth, latency, capacity planning, scale estimation

Use this skill when:

• Estimating system capacity requirements
• Calculating storage needs for a feature
• Determining bandwidth requirements
• Sizing infrastructure for expected load
• Justifying architectural decisions with numbers
• Preparing for system design interviews

Core Principle