The Bus Factor

Bus factor refers to the number of people in your team who can put your project in trouble if they are hit by a bus. And of course, the don’t have to be necessarily hit by a bus: illness, vacation, and departure from the company are all frequent occurrences that can bring disaster to a project. Each project manager should be aware of the bus factor of their teams. The most threatening bus factor that any team can have is 1; having a larger bus factor value is preferable.

The bus won’t care if you are the only developer!