LMGTFY http://en.wikipedia.org/wiki/Bus_factor http://en.wikipedia.org/wiki/Bus_factor :) The bus factor is the total number of key developers who would need t

LMGTFY http://en.wikipedia.org/wiki/Bus_factor http://en.wikipedia.org/wiki/Bus_factor :) The bus factor is the total number of key developers who would need to be incapacitated (as by getting hit by a bus/truck) to send the project into such disarray that it would not be able to proceed; the project would retain information (such as source code) with which no remaining team member is familiar.