ϊʔϜΧʔεͷୈҰ༏ઌࢦྩ(Retrospective prime directive) ࠓݟ͚ͭͨͷ͕ԿͰ͋ΕɺνʔϜͷશһ͕ɺͦͷ࣌ͰΘ͔͍ͬͯͨ ͜ͱεΩϧ͓Αͼೳྗɺར༻ՄೳͳϦιʔεΛ༨͢͜ͱͳͬͯ͘ɺஔ ͔Εͨঢ়گԼͰϕετΛਚͨ͘͠ɺͱ͍͏͜ͱΛٙͬͯͳΒͳ͍ɻ --Norm Kerth, Project Retrospectives: A Handbook for Team Review ͜ͷࢦྩ͕࣮ݱͰ͖Δ࡞Γ͕ॏཁ Fun Done Learn͜ͷ࡞ΓΛ࣮ݱ͍͢͠