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What is Bus Factor?

The number of team members who would need to leave before critical knowledge is lost.

Why It Matters

A low bus factor means your project is at risk if key people become unavailable.

Real-World Example

If only one developer understands the payment system, the bus factor for that system is one.

“Understanding terms like Bus Factor matters because it helps you have better conversations with developers and make smarter decisions about your software. You do not need to be technical. You just need to know enough to ask the right questions.”

Callum Holt, Founder, 13Labs

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