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スクラムを「投げ捨てる」-必要になるまでやらない勇気
Shinichi Nakagawa
December 18, 2018
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スクラムを「投げ捨てる」-必要になるまでやらない勇気
Retty Scrum Meet up〜2018.12.18〜 LT登壇資料
https://retty.connpass.com/event/111549/
Shinichi Nakagawa
December 18, 2018
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Transcript
ࢲ͕εΫϥϜΛࣺ͛ͯΔ·Ͱ - ඞཁʹͳΔ·ͰΒͳ͍༐ؾΛͱ͏ - ͘͢ΒΉ Shinichi Nakagawa a.k.a. @shinyorke Retty
Scrum Meet up 2018/12/18
೦ͷҝݴ͓ͬͯ͘ͱ • ࢲ͕ࠓɺScrumΛͬͯͳ͍͚ͩͰ ScrumΛ൱ఆ͢ΔͷͰ͋Γ·ͤΜʂ ※ͱ͍͏Λ͜Ε͔Β͠·͢ • ΞδϟΠϧScrumʹৄ͍͠ίʔνͱ͔ͦ͏͍͏ਓ Ͳ͏ౖ͔Βͣʹฉ͍ͯ΄͍͠ʢ୰ئʣ • ͳ͓ɺ͜ͷϊϯϑΟΫγϣϯͰ͢
Who am I?ʢ͓લ୭Αʣ • εϙʔπ&ٿͷϕϯνϟʔͰCTOͯ͠·͢ • Shinichi NAKAGAWA(@shinyorke) • NEXT
BASE Corp. CTO/Baseball Engineer • جຊతʹPythonͷਓʢ͕ͩԿͰΔʣ • ೝఆεΫϥϜϚελʔʢ͕ͩԿʹͯ͠ͳ͍ʣ • ʲܦྺʳITίϯαϧˠϦΫϧʔτˠ˙˙˙˙˙ˠ͖͏
ࢲͱRettyʢ㲈Կނ͜͜ʹ͍Δͷ͔ʣ Dev Loveͷࣸਅ͕ग़͖ͯͨͷͰࡌͤͯΈͨʢfrom RettyߴྠΦϑΟεʣ ※ޙΖͷؗࢁ͞Μ(კ͞Μ)୯ͳΔٿ͖ͷΤϯδχΞͰ͢ʢࣾһͰ͢Βແ͍ʣ
ݩࣾһͰScrum MasterͳͷΑ • 2017/1ʙ2018/1ͷ1ؒࡏ੶ͯ͠·ͨ͠ • ࠷ॳEngineering Manager • ޙPythonͰσʔλΛ৮Δਓʹઐ೦ •
͋ͱऴ࢝ɺScrum MasterͰ͋ͬͨʢϙϯଠ͞Μͷલʣ • ࠓதͷਓʹɺʮLTͯ͠ͶʯͱݴΘΕͨͷͰˡࠓ͜͜
Pythonࣗ͘͘शࣨ #rettypy • RettyΛձʹɺिͬͯ͜Pythonʹؔ͢Δ͘͘Λ͢Δू·Γ • झࢫ&Ϟοτʔ • ͓Λ࣋ࢀͯ͠ʮࣗश(͘͘)ʯ͢Δ • ൃදɾࡶஊΛ௨ͯ͡ަྲྀ
• ΠΠΰϋϯ(ϥϯνɾ͓ͭ)Λ༇͠Ή • ॳ৺ऀ͔ΒΤόϯδΣϦετ·Ͱଟछଟ༷ͳࢀՃϝϯόʔ • ͳ͓࣍ճ໌͚1/26ʢʣ https://retty.connpass.com/event/111702/ • ʲॏཁʳ͍ͭձఏڙ͋Γ͕ͱ͏͍͟͝·͋͢Γ͕ͱ͏͍͟͝·͢m(_ _)m
ʲ͍ͭͰʹCMʳBaseball Geeks • ฐࣾʢωΫετϕʔεʣͰӡӦ͍ͯ͠ΔٿϝσΟΞͰ͢. • σʔλɾεϙʔπՊֶͰ໌Β͔ʹͳͬͨ͜ͱΛʮΘ͔Γ͘͢ʯ͑Δ • ΈΜͳಡΜͰͶ&ϒΫϚΑΖ͘͠ʂ https://www.baseballgeeks.jp/
͔͜͜Βຊ
TL;DRʢຊͷݴ͍͍ͨ͜ͱʣ • ݴޠԽ 33 - 4 ϓϥΫςΟε • ϓϥΫςΟεɾख๏ϑΣʔζͰมΘΔ •
αʔϏεˍࣗͱνʔϜ͕ͤͳํʹ ͍ͬͯ͘ͷ͕Ұ൪ॏཁ • εΫϥϜ͕ສೳʢΠέͯΔʣͱݶΒͳ͍ʂ
ࢲ͕εΫϥϜΛࣺ͛ͯΔ·Ͱ ※͍Β͢ͱʹѱҙ͋Γ·ͤΜʢଟʣ ͘͢ΒΉ
…ͷɺલʹ ·ͣࢲͳΓͷ ΞδϟΠϧख๏ બϧʔϧΛ
ʲਤʳݴޠԽ͔ΒϓϥΫςΟεΛܾΊΔ·Ͱ ※ࢲͳΓͷϧʔϧͰ͢&ࠓݴ͍͍ͨࣄͷͯ͢Ͱ͋Δ
νʔϜϏϧσΟϯάظ • ଟ͕͜͜Ұ൪ॏཁ • Ռ͖ͨ͢͜ͱͷΠγϡʔԽ • ԿΑΓνʔϜ࡞Γ • εΫϥϜͩʂΞδϟΠϧͩʂ ͱϓϥΫςΟεΛޠΔͷ
ͦͷޙͷϑΣʔζʂʂ
͜Μͳײ͡Ͱख़Խ͢Δ͜ͱ͋Ε ʢ͓ͦΒ͘͜Ε͕ཧ૾ʣ
͜͏͍͏ͨͲΓํΛ͢ΔνʔϜ ͋Δ͔͠Εͳ͍͠
͜͏͍͏͜ͱ͋Δ͔ʢ͑ʣ
ʮݴޠԽʯͰҰͭͷํ • ࠷ॳ৭Μͳਓ͕͍Δʢ৬ೳɾഎܠ͔Β৭ʑʣ ΈΜͳେ͖ʮμΠόʔγςΟʯౕͬͯͰ͢Ͷʢʣ • ʮ৭Μͳਓʯ͕͍Δ͔Βͦ͜ɺ৭Μͳҙݟ͕͋Δ • ࠷ॳʮͤΔʯʮݴ༿ʹ͢ΔʯʮݴޠԽ͢Δʯ͜ͱʹྗ • Α͘͏ํ๏ɾϓϥΫςΟε
• ·ͣɺ͢ʢҰॹʹ͝൧Λ৯Δɺ͓ͭΛָ͠Ήʣ • ݴ༿ͱͯ͠ॻ͍ͯΒ͏ʢϙετΠοτʣɺཧ͢ΔʢKJͳͲʣ • ݴ༿Λྨ͠ຏ͍ͯΠγϡʔʹˡ͜Ε͕ΰʔϧ
Ұͭͣͭਂ۷Γ͢Δͱ ͍ʢΤά͍ʣͷͰ ฉ͖͍ͨํ࠙ձͰ
ϓϩδΣΫτ࣮ߦظ • ΠγϡʔͱνʔϜ͕ ݻ·͔ͬͯΒ͍Α͍Α ख๏ͱϓϥΫςΟεΛ ܾΊͯΓ͖Δʂ • αʔϏεʢϏδωεʣͱ ٕज़ʢݴޠͱ͔FWͳͲʣ͕ طͳͷ͔ະͳͷ͔Ͱ
ख๏ɾϓϥΫςΟε͕มΘΔ
ࢲͷ͓ࣄʢաڈ4ʣͲ͏͔ͩͬͨʁ ˞͋͘·Ͱྨతʹଟ͔ͬͨͱ͍͏ҙຯͰ͢
ࢲͷ͓ࣄʢաڈ4ʣͲ͏͔ͩͬͨʁ ˞͋͘·Ͱྨతʹଟ͔ͬͨͱ͍͏ҙຯͰ͢ ϦΫϧʔτ࣌
ϦΫϧʔτ࣌ 3FUUZ ผͷελʔτΞοϓʣ ࢲͷ͓ࣄʢաڈ4ʣͲ͏͔ͩͬͨʁ ˞͋͘·Ͱྨతʹଟ͔ͬͨͱ͍͏ҙຯͰ͢
ϓϥΫςΟεͷબٿ؟⽁ • ʮෆ࣮֬ੑʯ͕ߴ͍͔͍͔ͰϓϥΫςΟεΛ͍͚Δ • ʮෆ࣮֬ੑʯ͕ߴ͍ʢେ͖ͳมߋ͕͋Δɾগਫ਼ӶνʔϜʣ • ϦʔϯΩϟϯόεʢෆ࣮֬ੑ͋Γͦ͏ͳϙΠϯτݟ͚ͭΔʣ • ΠϯηϓγϣϯσοΩʢܾ·ͬͯΔ͜ͱɾෆ࣮֬ͳ͜ͱΛ͚Δʣ •
Χϯόϯʢݱࡏͷ֬ೝ&ଞॴ͔ΒԿ͔ݴΘΕͨ࣌ͷཏ൫ʣ • ʮෆ࣮֬ੑʯ͕͍ʢখ͞ͳมߋ͕ଟ͍ɾͦͦ͜͜ͳਓʣ • σβΠϯυοΫʢ࡞ΔϞϊ͕ܾ·ΔͳΒ͍͍͢ʣ • ΥʔλʔϑΥʔϧʢ࡞Γ͖ΔͳΒΉ͠ΖεΫϥϜΑΓΓ͍͢ʣ • εΫϥϜʢϞϊɾίτͷߏԽ&ηϨϞχʔͰ͍͍ײ͡ʹറΕΔʣ ※͋͘·ͰɺࢲͷΓํͰ͢ʢҟͲ͏ͧɺडཱ͚ͯͭʣ
ࠓʢ͖͏ʣ Ͳ͔͜ͱ͍͏ͱ
ࢲͷ͓ࣄͷྖҬʢNow!ʣ ͖͏ ˞͜ͷลׂ͕
ࢲͷ͓ࣄͷྖҬʢNow!ʣ ͜ͷล ͨ·ʹΔ ͖͏ ˞͜ͷลׂ͕
ʁʁʁʮͨ·ʹΔͳΒεΫϥϜ͍Βϯΰʯ …ͱ͍͏ཧ༝ͰࠓεΫϥϜΛࣺͯ·ͨ͠ ͘͢ΒΉ
ԿނεΫϥϜΛࣺ͔ͯͨʁ • ʲॏཁʳΤϯδχΞɾνʔϜࢲҰਓʢͩͬͨʣ • ۀ্ͷίϛϡχέʔγϣϯࢲͱΦʔφʔతͳਓʢओʹࣾʣͰด͡Δ ˠ͓ͦ͜ޓ͍ͷ৴པ&ࣗͷιϧδϟʔϫʔΫͰͳ͠ • ৴པͰ͖ͯΔͷʹϓϥΫςΟεΛΔͱ͔ίετ͕ਖ਼͍ͬͨͳ͍ ˞εΫϥϜͪΌΜͱΔͱ͍ͬͨॴ͕͋Δʢͱ͍͏ೝࣝʣ •
͖ͳ⽁ΛɺඞཁेͳϦιʔεͱڥͰΕͯΔ ˠιϧδϟʔϫʔΫͰϝϯόʔʢࢲʣͷ৺ཧత҆શੑอͨΕ͍ͯΔ ɹগਫ਼Ӷ&ͦͷʹʢSlackʹʣ୭͔ډΔͷͰ૬ஊͪ͠Ό͍͍͑ • ಈ͍ͯՁग़͍ͯΕOKʂ...ͬͯɺ͜͜·ͰདྷͨΒεΫϥϜ͍Βͳ͘Ͷʁʁʁ
εΫϥϜΑΓؤுΔ͖ॴ • ϓϩδΣΫτɾΔ͜ͱͷݴޠԽ • ΤϯδχΞࢲҰਓͰɺʮ͍ΖΜͳϝϯόʔʯ͕͍Δ • ʮ͍ΖΜͳϝϯόʔʯඞͣ͠ITɾٕज़ʹ໌Δ͍Θ͚Ͱͳ͍ • ݴޠԽΛ্ͨ͠ͰαʔϏεɾνʔϜͷٻ͢ΔՁ؍ɾࢥͷϕΫτϧΛ߹ΘͤΔ •
ϝϯόʔͱࣗͷͤʢ͠ΜͲ͍࣌ظ৺ཧత҆શੑ͕ͱΕ͍ͯΔ͜ͱʣ • ۩ମతͳϓϥΫςΟεͱ͔׆ಈ • ΠϯηϓγϣϯσοΩʢΔΒએݴɺ࣮ݱ࣌ظROIͷݴޠԽʣ • Χϯόϯʢঢ়گͷݟ͑ΔԽɺಁ໌ײΛग़͢ʣ • Πγϡʔۦಈʢͯ͢ͷλεΫʹΠγϡʔΛͨͤΔɺແବͳ͜ͱ͠ͳ͍༷ʣ • ҰਓɾΈΜͳͰٿΛΈΔɾָ͠Ήɺ͍͍ϞϊΛ৯ΔʢRetty͔࣌Βͷϧʔϧʣ
ͭ·Γɺ͜ΕΛ࠷࠷ͰΔ͜ͱ͕େࣄʂ ※ख๏ɾϓϥΫςΟε͕ܾ࣠·ͬͨΒܾΊͯΓ͖Δ
ͱ͍͑Ͱ͢Α
͍͔ͭεΫϥϜΛर͏͕དྷΔϋζʁ ࠓΤϯδχΞ͕2໊ʢ+ֶੜΠϯλʔϯ1໊ʣɺࠓޙ૿͘͢࠾༻த ϑϧλΠϜͰ4ਓҎ্ʹͳͬͨΒεΫϥϜΛΔ࣌ظ͕དྷΔ͔͠Εͳ͍ʢಡΈʣ
εΫϥϜΛ͏Ұ र͍͢ͱ͖(ΦωΦ)
νʔϜʹ߹ΘͤͯݴޠԽ͔ΒΓ͠·͢ʂ User HappyΛ͑͞͞ΔΞδϟΠϧͷίίϩͱεΫϥϜͷΩϗϯ https://www.slideshare.net/shinyorke/user-happyretty-way ※Retty࣌ͷ࡞Ͱ͢ʢखલຯḩʣ
·ͱΊʢେͳͷͰೋݴ͏ʣ • ݴޠԽ 33 - 4 ϓϥΫςΟε • ϓϥΫςΟεɾख๏ϑΣʔζͰมΘΔ •
αʔϏεˍࣗͱνʔϜ͕ͤͳํʹ ͍ͬͯ͘ͷ͕Ұ൪ॏཁ • εΫϥϜ͕ສೳʢΠέͯΔʣͱݶΒͳ͍ʂ
ΞδϟΠϧɾεΫϥϜͷ࣮ફ”ਏ͍”͜ͱ͋Δ͚Ͳ ϗϯτʹඞཁ͔Ͳ͏͔ߟ͔͑ͯΒΔͱ͍͍ͱࢥ͏Αʂ
ήʔϜηοτ ͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠&Retty݄ؒ4,000ສϢʔβʔ͓ΊͰͱ͏͍͟͝·͢ʂ Shinichi Nakagawa(Twitter/Facebook/etc… @shinyorke)