スクラムを「投げ捨てる」-必要になるまでやらない勇気

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ࢲ͕εΫϥϜΛ౤ࣺ͛ͯΔ·Ͱ - ඞཁʹͳΔ·Ͱ΍Βͳ͍༐ؾΛ΋ͱ͏ - ͘͢ΒΉ Shinichi Nakagawa a.k.a. @shinyorke Retty Scrum Meet up 2018/12/18

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೦ͷҝݴ͓ͬͯ͘ͱ • ࢲ͕ࠓɺScrumΛ΍ͬͯͳ͍͚ͩͰ  ScrumΛ൱ఆ͢Δ΋ͷͰ͸͋Γ·ͤΜʂ  ※ͱ͍͏࿩Λ͜Ε͔Β͠·͢ • ΞδϟΠϧ΍Scrumʹৄ͍͠ίʔνͱ͔ͦ͏͍͏ਓ  Ͳ͏ౖ͔Βͣʹฉ͍ͯ΄͍͠ʢ୰ئʣ • ͳ͓ɺ͜ͷ࿩͸ϊϯϑΟΫγϣϯͰ͢

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Who am I?ʢ͓લ୭Αʣ • εϙʔπ&໺ٿͷϕϯνϟʔͰCTOͯ͠·͢ • Shinichi NAKAGAWA(@shinyorke) • NEXT BASE Corp. CTO/Baseball Engineer • جຊతʹ͸Pythonͷਓʢ͕ͩԿͰ΋΍Δʣ • ೝఆεΫϥϜϚελʔʢ͕ͩԿʹ΋ͯ͠ͳ͍ʣ • ʲܦྺʳITίϯαϧˠϦΫϧʔτˠ˙˙˙˙˙ˠ΍͖͏

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ࢲͱRettyʢ㲈Կނ͜͜ʹ͍Δͷ͔ʣ Dev Loveͷࣸਅ͕ग़͖ͯͨͷͰࡌͤͯΈͨʢfrom RettyߴྠΦϑΟεʣ ※ޙΖͷؗࢁ͞Μ(კ͞Μ)͸୯ͳΔ໺ٿ޷͖ͷΤϯδχΞͰ͢ʢࣾһͰ͢Βແ͍ʣ

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ݩࣾһͰScrum MasterͳͷΑ • 2017/1ʙ2018/1ͷ1೥ؒࡏ੶ͯ͠·ͨ͠ • ࠷ॳ͸Engineering Manager • ޙ൒͸PythonͰσʔλΛ৮Δਓʹઐ೦ • ͋ͱऴ࢝ɺScrum MasterͰ΋͋ͬͨʢϙϯଠ͞Μͷલʣ • ࠓ೔͸தͷਓʹɺʮLTͯ͠ͶʯͱݴΘΕͨͷͰˡࠓ͜͜

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Python΋͘΋ࣗ͘शࣨ #rettypy • RettyΛձ৔ʹɺि຤͜΋ͬͯPythonʹؔ͢Δ΋͘΋͘Λ͢Δू·Γ • झࢫ&Ϟοτʔ • ͓୊Λ࣋ࢀͯ͠ʮࣗश(΋͘΋͘)ʯ͢Δ • ൃදɾࡶஊΛ௨ͯ͡ަྲྀ • ΠΠΰϋϯ(ϥϯνɾ͓΍ͭ)Λ༇͠Ή • ॳ৺ऀ͔ΒΤόϯδΣϦετ·Ͱଟछଟ༷ͳࢀՃϝϯόʔ • ͳ͓࣍ճ͸೥໌͚1/26ʢ౔ʣ https://retty.connpass.com/event/111702/ • ʲ௒ॏཁʳ͍ͭ΋ձ৔ఏڙ͋Γ͕ͱ͏͍͟͝·͋͢Γ͕ͱ͏͍͟͝·͢m(_ _)m

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ʲ͍ͭͰʹCMʳBaseball Geeks • ฐࣾʢωΫετϕʔεʣͰӡӦ͍ͯ͠Δ໺ٿϝσΟΞͰ͢. • σʔλɾεϙʔπՊֶͰ໌Β͔ʹͳͬͨ͜ͱΛʮΘ͔Γ΍͘͢ʯ఻͑Δ • ΈΜͳಡΜͰͶ&ϒΫϚ΋ΑΖ͘͠ʂ https://www.baseballgeeks.jp/

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͔͜͜Βຊ୊

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TL;DRʢຊ೔ͷݴ͍͍ͨ͜ͱʣ • ݴޠԽ 33 - 4 ϓϥΫςΟε • ϓϥΫςΟεɾख๏͸ϑΣʔζͰ౎౓มΘΔ • αʔϏεˍࣗ෼ͱνʔϜ͕޾ͤͳํ޲ʹ  ΍͍ͬͯ͘ͷ͕Ұ൪ॏཁ • εΫϥϜ͕ສೳʢΠέͯΔʣͱ͸ݶΒͳ͍ʂ

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ࢲ͕εΫϥϜΛ౤ࣺ͛ͯΔ·Ͱ ※͍Β͢ͱʹѱҙ͸͋Γ·ͤΜʢଟ෼ʣ ͘͢ΒΉ

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…ͷɺલʹ ·ͣ͸ࢲͳΓͷ ΞδϟΠϧख๏ બ୒ϧʔϧΛ

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ʲਤʳݴޠԽ͔ΒϓϥΫςΟεΛܾΊΔ·Ͱ ※ࢲͳΓͷϧʔϧͰ͢&ࠓ೔ݴ͍͍ͨࣄͷ͢΂ͯͰ΋͋Δ

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νʔϜϏϧσΟϯάظ • ଟ෼͕͜͜Ұ൪ॏཁ • Ռͨ͢΂͖͜ͱͷΠγϡʔԽ • ԿΑΓ΋νʔϜ࡞Γ • εΫϥϜͩʂΞδϟΠϧͩʂ  ͱϓϥΫςΟεΛޠΔͷ͸  ͦͷޙͷϑΣʔζʂʂ

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͜Μͳײ͡Ͱ੒ख़Խ͢Δ͜ͱ΋͋Ε͹ ʢ͓ͦΒ͘͜Ε͕ཧ૝૾ʣ

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͜͏͍͏ͨͲΓํΛ͢ΔνʔϜ΋  ͋Δ͔΋͠Εͳ͍͠

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͜͏͍͏͜ͱ΋͋Δ͔΋ʢ਒͑ʣ

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ʮݴޠԽʯͰҰͭͷํ޲΁ • ࠷ॳ͸৭Μͳਓ͕͍Δʢ৬ೳɾഎܠ͔Β৭ʑʣ  ΈΜͳେ޷͖ʮμΠόʔγςΟʯౕͬͯͰ͢Ͷʢ๮ʣ • ʮ৭Μͳਓʯ͕͍Δ͔Βͦ͜ɺ৭Μͳҙݟ͕͋Δ • ࠷ॳ͸ʮ࿩ͤΔʯʮݴ༿ʹ͢ΔʯʮݴޠԽ͢Δʯ͜ͱʹ஫ྗ • Α͘࢖͏ํ๏ɾϓϥΫςΟε • ·ͣɺ࿩͢ʢҰॹʹ͝൧Λ৯΂Δɺ͓΍ͭΛָ͠Ήʣ • ݴ༿ͱͯ͠ॻ͍ͯ΋Β͏ʢϙετΠοτʣɺ੔ཧ͢ΔʢKJͳͲʣ • ݴ༿Λ෼ྨ͠ຏ͍ͯΠγϡʔʹˡ͜Ε͕ΰʔϧ

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Ұͭͣͭਂ۷Γ͢Δͱ ௕͍ʢΤά͍ʣͷͰ ฉ͖͍ͨํ͸࠙਌ձͰ

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ϓϩδΣΫτ࣮ߦظ • ΠγϡʔͱνʔϜ͕  ݻ·͔ͬͯΒ͍Α͍Α  ख๏ͱϓϥΫςΟεΛ  ܾΊͯ΍Γ͖Δʂ • αʔϏεʢϏδωεʣͱ  ٕज़ʢݴޠͱ͔FWͳͲʣ͕  ط஌ͳͷ͔ະ஌ͳͷ͔Ͱ  ख๏ɾϓϥΫςΟε͕มΘΔ

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ࢲͷ͓࢓ࣄʢաڈ4೥ʣ͸Ͳ͏͔ͩͬͨʁ  ˞͋͘·Ͱ෼ྨతʹଟ͔ͬͨͱ͍͏ҙຯͰ͢

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ࢲͷ͓࢓ࣄʢաڈ4೥ʣ͸Ͳ͏͔ͩͬͨʁ  ˞͋͘·Ͱ෼ྨతʹଟ͔ͬͨͱ͍͏ҙຯͰ͢ ϦΫϧʔτ࣌୅

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ϦΫϧʔτ࣌୅ 3FUUZ  ผͷελʔτΞοϓʣ ࢲͷ͓࢓ࣄʢաڈ4೥ʣ͸Ͳ͏͔ͩͬͨʁ  ˞͋͘·Ͱ෼ྨతʹଟ͔ͬͨͱ͍͏ҙຯͰ͢

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ϓϥΫςΟεͷબٿ؟⽁ • ʮෆ࣮֬ੑʯ͕ߴ͍͔௿͍͔ͰϓϥΫςΟεΛ࢖͍෼͚Δ • ʮෆ࣮֬ੑʯ͕ߴ͍ʢେ͖ͳมߋ͕͋Δɾগ਺ਫ਼ӶνʔϜʣ • ϦʔϯΩϟϯόεʢෆ࣮֬ੑ͋Γͦ͏ͳϙΠϯτݟ͚ͭΔʣ • ΠϯηϓγϣϯσοΩʢܾ·ͬͯΔ͜ͱɾෆ࣮֬ͳ͜ͱΛ෼͚Δʣ • Χϯόϯʢݱࡏ஍ͷ֬ೝ&ଞॴ͔ΒԿ͔ݴΘΕͨ࣌ͷཏ਑൫ʣ • ʮෆ࣮֬ੑʯ͕௿͍ʢখ͞ͳมߋ͕ଟ͍ɾͦͦ͜͜ͳਓ਺ʣ • σβΠϯυοΫʢ࡞ΔϞϊ͕ܾ·ΔͳΒ࢖͍΍͍͢ʣ • ΢ΥʔλʔϑΥʔϧʢ࡞Γ͖ΔͳΒΉ͠ΖεΫϥϜΑΓ΍Γ΍͍͢ʣ • εΫϥϜʢϞϊɾίτͷߏ଄Խ&ηϨϞχʔͰ͍͍ײ͡ʹറΕΔʣ ※͋͘·Ͱɺࢲͷ΍ΓํͰ͢ʢҟ࿦Ͳ͏ͧɺडཱ͚ͯͭʣ

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ࠓʢ΍͖͏ʣ ͸Ͳ͔͜ͱ͍͏ͱ

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ࢲͷ͓࢓ࣄͷྖҬʢNow!ʣ ΍͖͏ ˞͜ͷล͕໿ׂ

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ࢲͷ͓࢓ࣄͷྖҬʢNow!ʣ ͜ͷล΋ ͨ·ʹ΍Δ ΍͖͏ ˞͜ͷล͕໿ׂ

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ʁʁʁʮͨ·ʹ΍ΔͳΒεΫϥϜ͍Βϯΰʯ …ͱ͍͏ཧ༝Ͱࠓ͸εΫϥϜΛࣺͯ·ͨ͠ ͘͢ΒΉ

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ԿނεΫϥϜΛࣺ͔ͯͨʁ • ʲ௒ॏཁʳΤϯδχΞɾνʔϜ͸ࢲҰਓʢͩͬͨʣ • ۀ຿্ͷίϛϡχέʔγϣϯ͸ࢲͱΦʔφʔతͳਓʢओʹࣾ௕ʣͰด͡Δ  ˠͦ͜͸͓ޓ͍ͷ৴པ&ࣗ෼ͷιϧδϟʔϫʔΫͰ໰୊ͳ͠ • ৴པͰ͖ͯΔͷʹϓϥΫςΟεΛ΍Δͱ͔ίετ͕ਖ਼௚΋͍ͬͨͳ͍  ˞εΫϥϜ͸ͪΌΜͱ΍Δͱ໺฻͍ͬͨॴ͕͋Δʢͱ͍͏ೝࣝʣ • ޷͖ͳ⽁Λɺඞཁे෼ͳϦιʔεͱ؀ڥͰ΍ΕͯΔ  ˠιϧδϟʔϫʔΫͰ΋ϝϯόʔʢࢲʣͷ৺ཧత҆શੑ͸อͨΕ͍ͯΔ  ɹগ਺ਫ਼Ӷ&ͦͷ৔ʹʢSlackʹʣ୭͔ډΔͷͰ૬ஊͪ͠Ό͑͹͍͍ • ಈ͍ͯՁ஋ग़͍ͯΕ͹OKʂ...ͬͯɺ͜͜·ͰདྷͨΒεΫϥϜ͍Βͳ͘Ͷʁʁʁ

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εΫϥϜΑΓؤுΔ΂͖ॴ • ϓϩδΣΫτɾ΍Δ͜ͱͷݴޠԽ • ΤϯδχΞ͸ࢲҰਓͰ΋ɺʮ͍ΖΜͳϝϯόʔʯ͕͍Δ • ʮ͍ΖΜͳϝϯόʔʯ͸ඞͣ͠΋ITɾٕज़ʹ໌Δ͍Θ͚Ͱ͸ͳ͍ • ݴޠԽΛ্ͨ͠ͰαʔϏεɾνʔϜͷ௥ٻ͢ΔՁ஋؍ɾࢥ૝ͷϕΫτϧΛ߹ΘͤΔ • ϝϯόʔͱࣗ෼ͷ޾ͤʢ͠ΜͲ͍࣌ظ΋৺ཧత҆શੑ͕ͱΕ͍ͯΔ͜ͱʣ • ۩ମతͳϓϥΫςΟεͱ͔׆ಈ • ΠϯηϓγϣϯσοΩʢ΍Δ΍Βએݴɺ࣮ݱ࣌ظ΍ROIͷݴޠԽʣ • Χϯόϯʢঢ়گͷݟ͑ΔԽɺಁ໌ײΛग़͢ʣ • Πγϡʔۦಈʢ͢΂ͯͷλεΫʹΠγϡʔΛ΋ͨͤΔɺແବͳ͜ͱ͠ͳ͍༷ʣ • ҰਓɾΈΜͳͰ໺ٿΛΈΔɾָ͠Ήɺ͍͍ϞϊΛ৯΂ΔʢRetty࣌୅͔Βͷϧʔϧʣ

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ͭ·Γɺ͜ΕΛ࠷଎࠷୹Ͱ΍Δ͜ͱ͕େࣄʂ ※ख๏ɾϓϥΫςΟε͸͕ܾ࣠·ͬͨΒܾΊͯ΍Γ͖Δ

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ͱ͸͍͑Ͱ͢Α

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͍͔ͭεΫϥϜΛर͏೔͕དྷΔϋζʁ ࠓ͸ΤϯδχΞ͕2໊ʢ+ֶੜΠϯλʔϯ1໊ʣɺࠓޙ΋૿΍͢΂͘࠾༻த ϑϧλΠϜͰ4ਓҎ্ʹͳͬͨΒεΫϥϜΛ΍Δ࣌ظ͕དྷΔ͔΋͠Εͳ͍ʢ๮ಡΈʣ

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εΫϥϜΛ΋͏Ұ౓ र͍௚͢ͱ͖͸(ΦωΦ)

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νʔϜʹ߹ΘͤͯݴޠԽ͔Β΍Γ௚͠·͢ʂ User HappyΛ͑͞͞ΔΞδϟΠϧͷίίϩͱεΫϥϜͷΩϗϯ https://www.slideshare.net/shinyorke/user-happyretty-way ※Retty࣌୅ͷ࡞඼Ͱ͢ʢखલຯḩʣ

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·ͱΊʢେ੾ͳͷͰೋ౓ݴ͏ʣ • ݴޠԽ 33 - 4 ϓϥΫςΟε • ϓϥΫςΟεɾख๏͸ϑΣʔζͰ౎౓มΘΔ • αʔϏεˍࣗ෼ͱνʔϜ͕޾ͤͳํ޲ʹ  ΍͍ͬͯ͘ͷ͕Ұ൪ॏཁ • εΫϥϜ͕ສೳʢΠέͯΔʣͱ͸ݶΒͳ͍ʂ

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ΞδϟΠϧɾεΫϥϜͷ࣮ફ͸”ਏ͍”͜ͱ΋͋Δ͚Ͳ ϗϯτʹඞཁ͔Ͳ͏͔ߟ͔͑ͯΒ΍Δͱ͍͍ͱࢥ͏Αʂ

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ήʔϜηοτ ͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠&Retty݄ؒ4,000ສϢʔβʔ͓ΊͰͱ͏͍͟͝·͢ʂ Shinichi Nakagawa(Twitter/Facebook/etc… @shinyorke)