I have loved this rule ever since I came across it as a student in 2002 and been using it successfully for user acceptance testing strategies in large projects.
I interpret it as a sort of fixed Pareto principle for projects where you limit effort and team size for maximum gain. N=5 also happens to be close to the ideal team size in agile frameworks. This rule is smart in a lot of ways and was ahead of its time.
I interpret it as a sort of fixed Pareto principle for projects where you limit effort and team size for maximum gain. N=5 also happens to be close to the ideal team size in agile frameworks. This rule is smart in a lot of ways and was ahead of its time.