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レビューの仕方
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Yosuke Furukawa
PRO
October 25, 2021
Programming
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レビューの仕方
Open8 勉強会で発表したレビューの仕方と心理的安全性の話しです。
Yosuke Furukawa
PRO
October 25, 2021
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Transcript
ϨϏϡʔͷํ 2021/10/25 @ Open8 ษڧձ
Twitter: @yosuke_furukawa Github: yosuke-furukawa ࠷ۙͷ׆ಈ $ISPNF"EWJTPSZ#PBSE +4$POG+1PSHBOJ[FSFUD
ίʔυϨϏϡʔʹ͍ͭͯͷ
ίʔυϨϏϡʔࢀߟจݙɹ https://google.github.io/eng-practices/
ίʔυϨϏϡʔͷલʹ
ίʔυϨϏϡʔͷલʹؾʹͯ͠ ͓͘͜ͱ • ίʔυͷঢ়ଶʹ͓͍ͯʮBestʯଘࡏ͠ͳ͍ • ʮBetterʯ͕͋Δ͚ͩ • ݪཧओٛతͳࢥͰʮBestʯΛ͍ٻΊͯ αʔϏεͱͯ͠ಈ͔ͳ͔ͬͨΒແՁ
ίʔυϨϏϡʔͷલʹؾʹͯ͠ ͓͘͜ͱ • ίʔυͷঢ়ଶʹ͓͍ͯʮBestʯଘࡏ͠ͳ͍ • ʮBetterʯ͕͋Δ͚ͩ • ݪཧओٛతͳࢥͰʮBestʯΛ͍ٻΊͯ αʔϏεͱͯ͠ಈ͔ͳ͔ͬͨΒແՁ ͜͜Λצҧ͍ͪ͠Ό͍͚ͳ͍ɻ
͋Δ͖࢟Λ͍ٻΊͭͭɺՁΛ࢈Έͩ͢ඞཁ͕͋Δɻ
ίʔυϨϏϡʔͷత
ίʔυϨϏϡʔͷత • ͦͷίʔυ͕Ճ͞ΕΔ͜ͱͰɺίʔυશମ ͷ݈શੑ্͕͞Ε͍ͯΔ͜ͱ • ͏গ͠ࡅ͍ͯݴ͏ͱɺࠓΑΓίʔυ͕ Better ͳঢ়ଶʹͳΔ͜ͱ 1VMM3FRVFTU͕࡞ۀରͷίʔυશମͷ݈શੑΛ্͍ͤͯ͞Δ #FUUFSʹͳΔ
ͱ͍͏ج४ΛຬͨͤɺϚʔδ͠ͳ͚Ε͍͚ͳ͍ɻ
ίʔυϨϏϡʔͷత • ίʔυ͕ Best ͳঢ়ଶͰ͋Δඞཁͳ͘ɺ Better ͳঢ়ଶͰ͋Εྑ͍ɻ • Ϛʔδ͢Δલʹ͋ΒΏΔࡉ͔͍෦ͷચ࿅Λ ٻΊΔ͖Ͱͳ͍ɻ
• ϨϏϡΞ͕ٻΊΔͷᘳ͞Ͱͳ͘ɺܧଓ తͳվળͰ͋Δ͖ɻ
ίʔυϨϏϡʔͷత • ᘳͳͷͰͳͯ͘Ϛʔδ͠ͳ͚ΕͳΒ ͳ͍ɻ • ҰํͰɺίʔυͷ݈શੑ͕ଛͳΘΕ͍͍ͯ ͱ͍͏༁Ͱͳ͍ɻ • ݈શੑ͕ࣦΘΕΔίʔυΛϚʔδͯ͠ྑ͍ͷ ʮۓٸࣄଶʯͷͱ͖͚ͩɻ
ݪଇ • ٕज़తͳࣄ࣮σʔλʹΑͬͯͷमਖ਼ݸਓͷΈΑΓ ॏࢹ͢Δ͖ • ελΠϧͷελΠϧΨΠυΛࣄલʹܾΊ͓͖ͯ͘ • ෳͷબ͕͋Γ͑ͯɺͲͪΒಉ༷ʹ݈શੑ͕୲อ͞ ΕΔͷͰ͋Εɺίʔυ࡞ऀͷҙݟ͕ଚॏ͞ΕΔ͖ •
্هͷͲͷϧʔϧͯ·Βͳ͍߹ϨϏϡϫʔʹΑ ΔҰ؏ੑ͕ࢦఠ͞ΕΔ͖
࣮ྫ1: ςετίʔυͳ͠ίϛο τ • ίʔυͷػೳతͳՃ͞Ε͍ͯΔ͕ɺςετίʔ υ͕શ͘ଘࡏ͠ͳ͍ • ίʔυͷ݈શੑͱ͍͏ҙຯͰςετίʔυ͕ଘ ࡏ͠ͳ͍ίʔυϚʔδ͞ΕΔ͖Ͱͳ͍ •
ͨͩ͠ɺςετίʔυ͕ͦͦଘࡏ͠ͳ͍ͱ͜ Ζʹରͯ͠ػೳͷՃΛ͍ͯ͠ΔͷͰ͋ΕɺࠓΑ Γ͔ྑ͘ͳ͍ͬͯΔͨΊɺϚʔδ͞ΕΔ͖ɻ
࣮ྫ2: ΞϧΰϦζϜ͕͍ • ػೳՃ͞Ε͍ͯΔ͕ɺΞϧΰϦζϜ͕͘ɺͬ ͱ៉ྷʹߴͳͷ͕ॻ͚Δ࣌ • ͦΕ͕݈શ͔Ͳ͏͔ͰܾΊΔɻଞͷؔશͯߴԽ ϦʔμϏϦςΟʹྀ͞Ε͍ͯΔͷͰ͋Εɺ݈શ ͡Όͳ͘ͳΔ͔ΒɺΞϧΰϦζϜΛ͖͢ •
ҰํͰผʹଞͦΜͳʹ៉ྷ͡Όͳ͍ͳΒɺҰ୴ίϝ ϯτʹ TODO Λॻ͍͓͍ͯͯϚʔδ͢Δͷ͋Γɻ
ϨϏϡʔͰݟΔ͖ॴ
ϨϏϡʔͰݟΔ͖ॴ • ίʔυ͕ͪΌΜͱઃܭ͞Ε͍ͯΔ͔Ͳ͏͔ • ػೳ͕ͪΌΜͱՃ͞Ε͍ͯΔ͔Ͳ͏͔ • ಈ࡞֬ೝͯ͠νΣοΫ͍͍ͯ͠ʢUIͷ࣌ඞ ਢʣ • ฒྻॲཧͱ͔ਖ਼نදݱͱ͔҆શੑʹؔΘΔॴ
దͳϨϏϡϫʔ͕ͪΌΜͱݟΔ
ϨϏϡʔͰݟΔ͖ॴ • ίʔυ͕ඞཁҎ্ʹෳࡶ͡Όͳ͍ • কདྷඞཁʹͳΔ͔ɾɾɾΈ͍ͨͳͷ࣮ ͠ͳ͍΄͏͕͍͍ • ςετ͕ଘࡏ͢Δ͔ • ςετ͕దʹઃܭ͞Ε͍ͯΔ͔
ϨϏϡʔͰݟΔ͖ॴ • มɾؔɾΫϥε໊ͳͲ͕ͪΌΜͱ໋໊͞ Ε͍ͯΔ͔ • ίϝϯτʹ Why ͕ॻ͔Ε͍ͯΔ͔ • What
Λॻ͍͍͚ͯͳ͍
ϨϏϡʔͰݟΔ͖ॴ • υΩϡϝϯτ͕ॻ͔Ε͍ͯΔ͔ • ελΠϧελΠϧΨΠυʹै͍ͬͯΔ͔ • ελΠϧΨΠυ͕ͳ͍ͳΒ͔ͦ͜ΒΔ ͖
ϨϏϡʔͰݟΔ͖ॴ • ͯ͢ͷߦΛͪΌΜͱݟ͍ͯΔ͜ͱ • ίϯςΩετΛଊ͍͑ͯΔ͔Ͳ͏͔ • ྑ͍ॴ͕͋ͬͨΒͪΌΜͱ๙ΊΔ
ίʔυϨϏϡʔͷεϐʔυ
ίʔυϨϏϡʔͷεϐʔυ • ίʔυϨϏϡʔͷεϐʔυ͕νʔϜͷεϐʔυͱ ੜ࢈ੑʹ݁͢Δ • ͕͔͔࣌ؒΕ͔͔Δ΄ͲίʔυϨϏϡʔͷϓϩ ηε͕໘ʹײ͡ΒΕΔ • ϨϏϡʔ͕͍ͱίʔυΛϦϑΝΫλϦϯάͨ͠ Γςετॻ͍ͨΓͱݴͬͨॲཧΛΓͨ͘ͳ͘ͳ
Δ
ίʔυϨϏϡʔ͍ͭΔ͔ʁ
དྷͨΒ͙͢Δɻ ͯ͘ཌ·ͰʹΔɻ
ͱΓ͋͑ͣ࠷ॳͷฦࣄΛฦͦ͏ • Ϛʔδ͞ΕΔ·Ͱ͕͘ͳ͖Ό͍͚ͳ͍Θ͚ ͡Όͳ͍ɻ • શ෦ݟΔͷΛҰͰΒͳ͖Ό͍͚ͳ͍Θ͚ ͡Όͳ͍ɻ • ͱΓ͋͑ͣ࠷ॳͷฦࣄΛฦ͢·Ͱ͕ҰҎ ͱ͍͏ɻ
ଚܟͱײँ • ͕࣌ؒऔΕͳ͍ͳΒऔΕͳ͍ͳΓʹฦ͠ํ͕ ͋Δ • PR ͷઆ໌ΛಡΉ͚ͩͰ͋ΔఔฦͤΔ͕࣌͋ Δ • ଚܟͱײँͷҙΛ͑Δ͚ͩͰྑ͔ͬͨΓ
͢Δ
͍PRͩͳʔͱࢥͬͨΒׂ͠ ͯΒ͏ • PR͕ͯ͘ɺಡΈΔ·Ͱʹ͕͔͔࣌ؒΔͳΒ ׂͯ͠Β͏ख͋Δ • ϝΠϯ෦͚ͩՃͯ͠ΒͬͯɺΓͷPR ผύʔτʹ͚ΔͳͲ • খ͞ͳPRΛ࡞Δ͜ͱϨϏϡϫʔΛॿ͚Δࣄ͕
ଟ͍
ྫ֎
ۓٸࣄଶ
ۓٸࣄଶ • ϢʔβʔʹӨڹͷ͋Δόά͕ग़ͯΔ • ηΩϡϦςΟϗʔϧ͕͋ͬͯσʔλྲྀग़͕ى ͖ͦ͏ • ͳͲͳͲ • ͜͏͍͏࣌ίʔυͷ݈શੑΛΕ͍͍ͯɻ
ίʔυϨϏϡʔͷ͏Ұͭͷ త
ίʔυϨϏϡʔʹϝϯλϦϯ άͷଆ໘͕͋Δ • ίʔυϨϏϡʔڭҭͷͰ͋Δ • ͦ͏͍͏࣌ʹ͑ͯݫ͘͠ڭ͑Δͷྑ͍ • ͕ࣗࠓ݈શੑ୲อͷࢠΛ͔Ϳ͍ͬͯͯ͠Δͷ ͔ɺϝϯλʔͱͯ͠ͷҭͷࢠΛ͔Ϳ͍ͬͯͯ͠Δ ͷ͔Λೝࣝ͢Δ
• ͦͷ্ͰͷίϝϯτͰ͋ΕBestΛٻΊΔ͜ͱ͋Γɻ
ίʔυϨϏϡʔͰҙݟ͕ରཱ ͨ͠ͱ͖
ҙݟ͕ରཱͨ͠ͱ͖ • จ໘͚ͩͰΓऔΓ͠ͳ͍ɻ • ର໘/ΦϯϥΠϯͰϛʔςΟϯά͢Δɻ • ϛʔςΟϯάͷࡍʹPRͷίϝϯτཝʹٞࣄΛ͢ • ͦΕͰมΘΒͳ͍࣌ר͖ࠐΉਓΛ૿͢ •
νʔϜϦʔμʔʹೖͬͯΒ͏ • ٕज़ސʹॿྗΛٻΊΔ˒˒˒ • ॏཁͳ͜ͱ: ҙݟ͕ରཱͯ͠Δ͔ΒͱݴͬͯPRΛ์ஔ͍͚ͯ͠ͳ͍
͜͜·Ͱݟ͔ͯΔ௨Γ
ίʔυϨϏϡʔͱ୯ͳΔ։ ൃ࡞ۀͰͳ͘ɺνʔϜϏϧ υͰ͋Δ
ͪΐͬͱໟ৭ͷҧ͏ • THE CULTURE CODE ࠷ڧνʔϜΛ࡞Δํ๏ https://www.amazon.co.jp/dp/4761273828/
࠷ڧͷνʔϜΛ࡞Δʹ • ҆શͳڥΛ࡞Δ͜ͱ͕Ұ൪ • ͍ΘΏΔʮ৺ཧత҆શੑʯͱݺΕΔͷ • ҆શͳڥ͕ͳ͍߹ɺͲΜͳʹྑ͍ϨϏϡʔ Λ͍ͯ͠Δͱͯ͠νʔϜͷੜ࢈ੑམͪΔ • ࠷ऴతʹίʔυͷ݈શੑʹͭͳ͕Βͳ͍ɺ
Ώͬ͘ΓͱഇΕ͍ͯ͘
ͱ͋Δ࣮ݧ • ৽͍͠ϚʔέςΟϯάઓུΛߟ͑ΔձٞΛ3ͭ࡞ͬͨ • χοΫͱ͍͏ֻ͚ਓΛૹΓࠐΉ • χοΫʮ߈ܸతͳଶΛऔΔʯʮଵଦͳʯ ʮԿ͔ͱ۪ஒΛݴ͏ʯͷ̏ͭΛͦͷͦΕͧΕͷ ձٞͰߦͬͨɻ •
Ͳ͏ͳ͔ͬͨɾɾɾʁ
શͯͷձٞͰ30-40%ੜ࢈ੑ ͕Լͨ͠
͜͏͍͏ਓ͕͍Δ߹ • ͔ʹͦͷਓΛഉআ͠ͳ͍ͱ͍͚ͳ͍ • ͨͩ͠ɺඞͣͦ͠ͷਓΛഉআͰ͖ͳ͍͕࣌ ͋Δ • ͦ͏͍͏ͱ͖ʹத׆ಈΛऔΔ͕Ͱ͖Δͱ ྑ͍ɻ
த׆ಈ • ʮͦͷΞΠσΞ͍͍ͱࢥ͏ʯͳͲͷͪΐͬͱͨ͠ঝ ೝ • ʮ͜ΕΓ͖ͬͨΒձࣾͷʹܨ͕Γ·͢ͶʯͳͲ ͷΔؾΛग़͢ൃݴ • ʮ૬खͷҙݟΛ૬ṀΛଧͪͳ͕Β৺ʹฉ͘ʯͱ͍ͬ ͨฉ͖ग़࢟͢
• ͳͲͳͲ
த׆ಈ • ʮͦͷΞΠσΞ͍͍ͱࢥ͏ʯͳͲͷͪΐͬͱͨ͠ঝ ೝ • ʮ͜ΕΓ͖ͬͨΒձࣾͷʹܨ͕Γ·͢ͶʯͳͲ ͷΔؾΛग़͢ൃݴ • ʮ૬खͷҙݟΛ૬ṀΛଧͪͳ͕Β৺ʹฉ͘ʯͱ͍ͬ ͨฉ͖ग़࢟͢
• ͳͲͳͲ ͜ΕΒͷத׆ಈʹΑͬͯपΓͷϝϯόʔͷ৺ཧత҆શੑͷؾ͕Δ
࠷ڧͷνʔϜʹ৺ཧత҆શ ੑ͕ඞཁͳ͜ͱΘ͔ͬͨɻ Ͱ৺ཧత҆શੑͱͳʹ ͔ʁ
৺ཧత҆શੑͱ • ͜ͷάϧʔϓʹؼଐͯ҆͠શͩͱ͍͏ҙࣝͷ͜ͱ • ͦͷҙࣝҎԼͷ͕୲อ͞Ε͍ͯΔͱಘΒΕΔ • ϝϯόʔಉ࢜ͷަྲྀΛେʹ͍ͯ͠Δʢίϛϡχέʔγϣϯʣ • ϝϯόʔΛݸͱͯ͠ೝΊɺଚܟ͍ͯ͠ΔʢϦεϖΫτʣ •
͜ͷ͕ؔ͜Ε͔Βଓ͘ͱ͍͏ະདྷࢦʢϑϡʔνϟʔʣ • ৺ཧత҆શੑަྲྀͱଚܟͱະདྷࢦʹΑͬͯಘΒΕΔ
νʔϜͷύϑΥʔϚϯε5ͭ ͷܭଌՄೳͳཁૉΛ࣋ͭ • νʔϜશһ͕͠ɺ͢ྔಉ͡ɺͦΕͰ͍ͯɺҰճͷൃݴ͍ • ϝϯόʔؒͷΞΠίϯλΫτ͕Μɺձ͑ํʹϦεϖΫτ͕ ײ͡ΒΕΔ • Ϧʔμʔ͚ͩʹ͢ͷͰͳ͘ɺϝϯόʔಉ࢜Ͱίϛϡχέʔγϣ ϯ͕Μ
• ϝϯόʔؒͷݸਓతͳࡶஊ͕͋Δ • ϝϯόʔ͕ఆظతʹνʔϜΛΕͯɺ֎ͷڥʹ৮Εͯͬͯ͘ Δɻͦͷ࣌ʹ৽͍͠ใΛϝϯόʔͱڞ༗͍ͯ͠Δɻ
Ұݟ͢Δͱʮ͑ͬͦΕ͕େࣄ ͳͷʁʯ͍ͬͯ͏ॴ͔Γ
զʑͷνʔϜͷύϑΥʔϚϯ εΛܾΊΔͷʮ҆͜͜શ ͳॴͩɺࢲୡͭͳ͕ͬͯ ͍Δʯͱ͍͏ϝοηʔδΛ ͑Δଶ
·ͱΊ
ίʔυϨϏϡʔͷํͱνʔϜ Ϗϧυ • ίʔυϨϏϡʔࠓΑΓྑ͘ͳΔ͜ͱΛड͚ೖΕΔͨΊʹ࣮ࢪ͢Δߦҝɺϕετ͕͋ΔΘ͚ ͡Όͳ͍͜ͱΛཧղ͢Δ • ίʔυϨϏϡʔʹઃܭɺػೳʹՃ͑ͯςετυΩϡϝϯτɺͯ͢ͷߦΛݟΔඞཁ͕͋Δ • ͳΔ͘ૉૣ͘ϨεϙϯεΛฦ͢ •
ᎍΊΔ͜ͱ͕͋Δͱࢥ͏͕ɺᎍΊͯݐઃతʹͳΔΑ͏ʹΊΔ • ͜ΕνʔϜϏϧυͱҰॹɺͳΔ͘ੜ࢈ੑΛԼ͛Δ͔Βԕ͚͟Δඞཁ͕͋Δ • த׆ಈΛ͢Δ͜ͱͰੜ࢈ੑͷݮୀΛதͰ͖Δ • ৺ཧత҆શੑͱʮ͜͜ʹ͍ͯ҆৺ͩʯͱ͍͏ؼଐҙࣝ • νʔϜશମͰʮ҆͜͜શͳॴͩɺࢲୡͭͳ͕͍ͬͯΔʯͱ͍͏ϝοηʔδΛ͑Δඞཁ͕ ͋Δ