verb, not an adjective. There is no perfect process. There is no perfect design. There are no perfect stories. You can, however, perfect your process, your design, and your stories. ιϑτΣΞ։ൃʹ͓͍ͯɺʮᘳ QFSGFDU ʯಈࢺ で ͋Γɺܗ༰ࢺ で ͳ ͍ɻᘳͳ プ ϩηεଘࡏ͠ͳ͍ɻᘳͳઃܭଘࡏ͠ͳ͍ɻᘳͳετʔϦʔ ଘࡏ͠ͳ͍ɻ だが ɺ プ ϩηεΛʮᘳʹΔʯ͜ͱ で ͖ΔɻઃܭΛʮᘳʹ Δʯ͜ͱ で ͖ΔɻετʔϦʔΛʮᘳʹΔʯ͜ͱ で ͖Δɻ ষ □Incremental design puts improvement to work by re fi ning the design of the system. ΠϯΫϦϝϯλϧͳઃܭʹΑͬͯγεςϜͷઃܭΛચ࿅͍͚ͯ͠ ば ɺվળΛ͏·͘ ػೳͤ͞Δ͜ͱ が で ͖Δɻ ষ Ґ ಈ ઃܭ͢Δ □The question is not whether to design, but when to design. ͱͳΔͷɺઃܭΛ͢Δ͔ ど ͏͔ で ͳ͘ɺઃܭΛ͍ͭ͢Δ͔ で ͋Δɻ ষ