2017年7月21日（金）DevLOVE関西「心理的安全性」のことに思いを馳せてみるにて。
!5",",*/(৺ཧత҆શੑʹ͍ͭͯຊؾग़ͯ͠ߟ͑ͯΈͨΒීஈͬͯΔνʔϛϯάͷͩͬͨ2017/07/21 DevLOVEؔɿʮ৺ཧత҆શੑʯͷ͜ͱʹࢥ͍ΛͤͯΈΔTakao Oyobe (@TAKAKING22)Rakuten, Inc.
View Slide
!5",",*/(ҙࣄ߲0,ࣸਅࡱӨ0,Ͱ͢γϟολʔԻʹ͝ҙΛεϥΠυެ։ࡁͰ͢ձࣾશମͷ͠·ͤΜࢲୡͷͰ͢ʢυϯʣڭՊॻͷ͠·ͤΜࢲୡͷͰ͢ʢυϯʣ৺ཧత҆શۜͷؙͰ͋Γ·ͤΜແԻΧϝϥΞϓϦ͕͋Δͦ͏Ͱ͢
!5",",*/(৺ཧత҆શੑ
!5",",*/(৺ཧత҆શੑͱ✓ 1TZDIPMPHJDBM4BGFUZΛ༁ͨ͠৺ཧֶ༻ޠ✓ ҰਓͻͱΓ͕ؾ݉Ͷͳ͘ൃݴͰ͖ͯɺ ຊདྷͷࣗΛ҆৺ͯ͠͞Β͚ग़ͤΔঢ়ଶงғؾ✓ ৺ཧతͳෆ͕҆ͳ͍ঢ়ଶ
!5",",*/(৺ཧత҆શੑͱ✓ ʹެද͞Εͨ(PPHMF͕औΓΜͰ͖ͨ ࿑ಇվֵϓϩδΣΫτͷதͰհ͞Εͯʹ✓ ޭ͍ͯ͠ΔνʔϜʹڞ௨ͯ͠ʮ৺ཧత҆શੑʯ ͕උΘ͍ͬͯͨʲࢀߟʳ8IBU(PPHMF-FBSOFE'SPN*UT2VFTUUP#VJMEUIF1FSGFDU5FBN FO‣ ༁هࣄͪ͜Β
!5",",*/(IUUQNPEFSOBHJMFPSHCZ+PTIVB,FSJFWTLZ✓ ϞμϯΞδϟΠϧͷҰཁૉ✓ "HJMFͰհ✓ "HJMF+BQBOͷجௐߨԋ✓ "O[FOFFSJOH ʢ҆શʴΤϯδχΞϦϯάʣ
!5",",*/(
!5",",*/(;ΜΘΓͨ͠ʹͳΓͦ͏Ͱ͋Μ·Γಘҙ͡Όͳ͍ͳʔվΊͯߟ͑ͯΈΔͱʜʮ৺ཧత҆શੑʯͬͯݴ༿ͳΜͱͳͬͯͯ͘ͲΜͳͷͳͷ͔Α͘Θ͔͍ͬͯͳ͍ͳ
!5",",*/(ʮ৺ཧత҆શੑʯʹ͍ͭͯɺ͍Ζ͍ΖֶΜͰ͍Ζ͍Ζߟ͑ͯࢥ͍ΛͤͯΈͨ
!5",",*/(IUUQTTQFBLFSEFDLDPNUBLBLJOHIUUQTXXXTMJEFTIBSFOFU5BLBP0ZPCFQSFTFOUBUJPOT
!5",",*/(IUUQTTQFBLFSEFDLDPNUBLBLJOHIUUQTXXXTMJEFTIBSFOFU5BLBP0ZPCFQSFTFOUBUJPOTʮ৺ཧత҆શੑʯʹ͍ͭͯɺ͍Ζ͍ΖֶΜͰ͍Ζ͍Ζߟ͑ͯࢥ͍ΛͤͯΈͨΒීஈͬͯΔνʔϛϯάͷͩͬͨ
!5",",*/(νʔϛϯάlνʔϛϯάɺڠಇ͢Δͱ͍͏ʮ׆ಈʯΛද͢ޠzlνʔϜʹର͢Δैདྷͷߟ͑ํͱҧ͍ɺνʔϛϯά੩తͳू·ΓͰͳ͘ɺ׆ಈతͳϓϩηεzνʔϜ͕ػೳ͢ΔͱͲ͏͍͏͜ͱ͔ʗΤΠϛʔɾ$ɾΤυϞϯυιϯஶʢӳ࣏ग़൛ʣ
!5",",*/(!5",",*/(ٴ෦ܟ༤ָఱגࣜձࣾΞϓϦέʔγϣϯΤϯδχΞҰൠࣾஂ๏ਓΞδϟΠϧνʔϜΛࢧ͑ΔձΛࢧ͑ΔձۭલઈޙͷΞδϟΠϧϞϯελʔઈౖ౭ͷے୲ਪ͠ϝϯɿࢁຊ࠼
!5",",*/(ϓϩμΫτ։ൃͷݱʹ͓͍ͯɺͲΜͳෆ͕҆ੜ·ΕͯɺͦΕΛͲ͏ղܾͨ͠ͷ͔ɻ͜Ε·Ͱͷνʔϛϯάࣄྫʹ͍ͭͯ;Γ͔͑Γͳ͕Βࢲ͕ߟ͑ΔlνʔϜͱ৺ཧత҆શੑͷؔzʹ͍͓ͭͯ͠·͢ɻࠓͷ͓
!5",",*/(େࡕͰέΔࠓͷΰʔϧ✓ νʔϜͱ৺ཧత҆શੑʹ͍ͭͯߟ͑ͯΈΑ͔ͬͳ✓ 0ZPCFͱͬͱͯ͠Έ͍ͨͳʔͱࢥͬͯΒ͏
!5",",*/(νʔϛϯάࣄྫ
!5",",*/(ʁνʔϜνʔϜ͕ࢦ͢ΰʔϧ
!5",",*/(ྑ͍ͷΛྑ͍ͭ͘ΓํͰ࡞Γଓ͚ΔνʔϜνʔϜ͕ࢦ͢ΰʔϧ֤ࣗ͜͜ͰͯΊͯԼ͍͞
!5",",*/(ݸਓ͕ಇ͘Ϟνϕʔγϣϯݸਓ͓ۚΛՔ͍͗ͨಛʹ͋Γ·ͤΜɻٕज़ྗΛ͚͍ͭͨϢʔβʔʹتΜͰ΄͍͠
!5",",*/(ϞνϕʔγϣϯOݸਓ νʔϜࢦ͢ΰʔϧΪϟοϓ͜Εͬͯϗϯτʂʁ
!5",",*/(PO"DUJPO৽͘͠νʔϜ͕Ͱ͖ͨ࣌ɾ৽͍͠νʔϜʹ+PJOͨ࣌͠ɺ֤νʔϜϝϯόʔͱPOͰΛௌ͍ͯΈΔ✓ ϝϯόʔͷΛௌͨ͘Ίͷ࣌ؒ✓ ʮͲΜͳ͜ͱΛΓ͍͔ͨʯ✓ ʮࠓͷνʔϜʹ͍ͭͯͲ͏ࢥ͏͔ʯ✓ ʮࠓͷνʔϜͰ͚ͭͩࣗ༝ʹม͑ΒΕΔͱͨ͠Βʁʯ
!5",",*/(νʔϜʹ͍ͭͯߟ͑Δ͕ͳ͍%JTDPWFSZ✓ ͜Ε·ͰνʔϜͷ͜ͱΛߟ͑Δػձ͕ͳ͔ͬͨ✓ ୭͔ʢ্࢘ʁϦʔμʔʁʣ͕ߟ͑Δͷ✓ ਖ਼ࣾһɾݣͳͲޏ༻ܗଶͷҧ͍ʹΑΔԕྀ
!5",",*/(νʔϜͷ͜ͱΛߟ͑ͨ͜ͱ͕ͳ͔ͬͨΒͳ͍ʹෆ͔҆ͩΒڑΛอͬͯ͠·͏
!5",",*/(νʔϜݸਓݸਓͱνʔϜͷڑ͕ԕ͍
!5",",*/(lνʔϛϯάͷअຐzνʔϜ͕ػೳ͢ΔͱͲ͏͍͏͜ͱ͔ʗΤΠϛʔɾ$ɾΤυϞϯυιϯஶʢӳ࣏ग़൛ʣ
!5",",*/(1IPUPCZ'VOL%PPCZ IUUQTHPPHM4X8,U)ҰॹʹࣄΛ͍ͯ͠Δ͚ͩͰ·ͩνʔϜͰͳ͍
!5",",*/(;Γ͔͑Γ"DUJPOࣄͷखΛࢭΊͯɺࣗୡͷࣄνʔϜʹ͍ͭͯߟ͑Δ࣌ؒΛఆظతʹͱΔ✓ νʔϜʹ͍ͭͯߟ͑ΔͨΊͷ࣌ؒ✓ ࣗୡͷࣄΛ;Γ͔͑Δ✓ ۈܗଶɾ৬ؔͳ͘ϑϥοτʹ શһ͕͢
!5",",*/(νʔϜΠϯηϓγϣϯσοΩ"DUJPOࣄͷखΛࢭΊͯɺࣗୡͷνʔϜͷະདྷʹ͍ͭͯߟ͑ͯ߹ҙ͢Δ✓ νʔϜͷະདྷΛߟ͑ΔͨΊͷ࣌ؒ✓ νʔϜͷࢦ͢ํΛܾΊͯɺ ϕΫτϧΛͭ͘Δ✓ νʔϜશһͰ߹ҙ͢Δʲࢀߟʳ5FBN3FGBDUPSJOHڧ͍νʔϜΛͭ͘Δٕज़
!5",",*/(ݸਓ νʔϜݸਓͱݸਓɾݸਓͱνʔϜ͕ରཱ͢Δߏਤʹ͢ΔͷͰͳ͘
!5",",*/(ݸਓݸਓݸਓνʔϜࢲͨͪ νʔϜWTͷߏਤʹ͢Δ
!5",",*/(lݴ͑ΔԽz
!5",",*/(ݴ͑ΔԽ✓ νʔϜʹڥΛͭ͘Βͳ͍✓ ϑϥοτͳίϛϡχέʔγϣϯ✓ ͳͲωΨςΟϒʹࢥ͑Δ͜ͱʹͤΔ✓ ͕ٞͰ͖Δؔ
!5",",*/(νʔϜͷ͜ͱΛߟ͑ͯΔͷ͕͋ͳ͚ͨͩʹͳ͍ͬͯ·ͤΜ͔ʁ;Γ͔͑ΓΛͬͯΔ͚Ͳ͏·͍͔͘ͳ͍
!5",",*/(νʔϜϝτϦΫεͷͭ୭͕ͲΕ͘Β͍ൃݴ͍ͯ͠Δ͔
!5",",*/(ࣦഊ͢Δͷ͕ා͍ࣦഊͨ͘͠ͳ͍ɾΊΒΕͨ͘ͳ͍͔Βઓ͠ͳ͍
!5",",*/(ࣦഊʹ͍ͭͯ͢"DUJPOνʔϜͰʮνʔϜʹͱͬͯͷࣦഊʯʹ͍ͭͯ͢✓ νʔϜʹͱͬͯͷࣦഊͱͳΜͩΖ͏͔✓ ݸਓ͕ߟ͍͑ͯΔࣦഊຊʹࣦഊͳͷ͔✓ શһͰߟ͑ͯ߹ҙ͢Δ
!5",",*/(ҙ֎ͱࣦഊͬͯগͳ͍ʂʁ%JTDPWFSZ✓ ҙ֎ͱࣦഊͩͱࢥ͍ͬͯΔ͜ͱࣦഊͰͳ͍✓ ͦͦ༧ଌෆೳͳ͜ͱΛࣄʹ͍ͯ͠ΔͷͰɺ ʮ݁Ռ͕ग़ͳ͍ʹࣦഊʯͰͳ͍͜ͱ͕ଟ͍✓ ࣦഊΛ໌֬ʹ͢Δ͜ͱͰෆ͕҆গͳ͘ͳΔ
!5",",*/(ʮࣦഊʯͰͳ͘ʮֶͼʯ
!5",",*/(ϫʔσΟϯά"DUJPO✓ ʮࢲʯ˰ʮࢲͨͪʯ✓ ʮࣦഊʯ˰ʮֶͼʯ✓ ϙδςΟϒͳݴ༿Λ͏Α͏ʹ͢Δ
!5",",*/(Ϟνϕʔγϣϯݸਓ νʔϜࢦ͢ΰʔϧΪϟοϓ
!5",",*/(͏·͍͘͘·Ͱʹ͕͔͔࣌ؒΔͷͰ܁Γฦ͔͢͠ͳ͍
!5",",*/(PO"DUJPOఆظతʹରͰϝϯόʔͷΛฉ࣌ؒ͘Λͭ͘Δ✓ ϝϯόʔͷͨΊͷ࣌ؒ✓ POͷํ͕͍͢͠τϐοΫ͋ΔʲࢀߟʳϠϑʔͷPOʗຊؒߒีஶʢμΠϠϞϯυࣾʣ
!5",",*/(υϥοΨʔ෩;Γ͔͑Γ"DUJPOνʔϜͱݸਓʹର͢ΔظΛݟ͑ΔԽ͢Δ
!5",",*/(υϥοΨʔ෩;Γ͔͑Γ"DUJPOνʔϜͱݸਓʹର͢ΔظΛݟ͑ΔԽ͢Δ✓ ࣄͷઅظͳͲʹ࣮ࢪ͢Δ✓ ֤ݸਓ͕ߟ͑ΔࠓճνʔϜ͕Ͱ͖ͨ͜ͱͱ ࣍ʹνʔϜͰͰ͖ΔΑ͏ʹ͍ͨ͜͠ͱΛ͢Γ߹ΘͤΔ✓ ͕ࣗࣗߩݙͰ͖ͨɾ࣍ʹߩݙ͍ͨ͠ͱࢥ͏͜ͱͱ ϝϯόʔ͔ΒͷධՁɾظΛ͢Γ߹ΘͤΔ
!5",",*/(͓ۚΛՔ͍͗ͨಛʹ͋Γ·ͤΜɻٕज़ྗΛ͚͍ͭͨϢʔβʔʹتΜͰ΄͍͠ݸਓͷϞνϕʔγϣϯͱνʔϜͷΰʔϧΛͭͳ͛ͯ͋͛ΔΠϝʔδྑ͍ͷΛྑ͍ͭ͘ΓํͰ࡞Γଓ͚ΔޮతʹࣄऴΘΒͤͯૣ͘ؼΕΔΑ͏ʹ͠Α͏ϢʔβʔʹՁΛఏڙͯ͠ϑΟʔυόοΫΒ͓͏ྑ͍ͷͭ͘ΔͨΊʹͨ͘͞ΜҾ͖ग़͠Λ૿ͦ͏ྑ͍ͷΛͭͬͯ͘νʔϜɾݸਓͷՁ্͛Α͏
!5",",*/(Ұॹʹಇ͘͜ͱ͕Ͱ͖ͳ͍ਓ͍Δ͔͠Εͳ͍
!5",",*/(Ͱͦͷஅૣ͘ͳ͍ͩΖ͏͔
!5",",*/(γεςϜࢥߟͰߟ͑ΒΕΔͱ͍͍ΑͶIUUQTXXXTMJEFTIBSFOFUTFDSFU.D,&4RXM%E[ZW͏·͍͔͘ͳ͍ͱ͖ɺਓͰͳ͘ΈΛٙ͏
!5",",*/(νʔϜͷ֎ʢͪΐͬͱ͚ͩʣ
!5",",*/(νʔϜͷ֎͔ΒԠԉͯ͘͠ΕΔͱخ͍͠ΑͶ
!5",",*/(্࢘νʔϜνʔϜͱ্࢘
!5",",*/(Θ͔Βͳ͍ɺؒʹೖΕͳ͍ෆ͔҆ͩΒ൱ఆతͳ͜ͱΛݴ͍ͨ͘ͳͬͯ͠·͏
!5",",*/(͑ͯ૬ஊ͢Δ"DUJPOใࠂͰͳ͑ͯ͘૬ஊܗࣜͰ্࢘ͱίϛϡχέʔγϣϯ͢Δ✓ lใࠂzͰͳ͑ͯ͘l૬ஊzΛ͢Δ✓ ʮ͜͏͠Α͏ͱࢥͬͯΔΜͰ͚͢ͲͲ͏ࢥ͍·͔͢ʁʯ✓ ࣄޙͰͷίϛϡχέʔγϣϯʢใࠂʣΑΓɺ ҰॹʹਐΊ͍ͯΔײ֮Λ࣋ͬͯΒ͑Δ
!5",",*/(্࢘ऐ͍͠ΜͩΑ%JTDPWFSZ✓ ݱʹ͍ͨࠒΑΓݽಠΛײ͍ͯ͡Δ͜ͱ͕ଟ͍✓ ্࢘ʹ্͕͍࢘ͯಉ͡Α͏ʹΜͰ͍Δ✓ ࢦͯ͠Δΰʔϧಉ͡ϋζ
!5",",*/(্ԼؔͰͳ͘ରʹ͖߹͏ଶͰͳͯ͘ࢹ࠲
!5",",*/(Ԡԉͨ͘͠ͳΔνʔϜʹͳΔ1IPUPCZWLBOBZB IUUQTHPPHM.N(UY
!5",",*/(৫νʔϜνʔϜͱ৫
!5",",*/(ະདྷձٞ"DUJPO৫Ϩϕϧͷ;Γ͔͑Γɺ৫ͷະདྷΛߟ͑Δ✓ ৫ͷ͜ͱΛߟ͑ΔͨΊ͚ͩͷ࣌ؒ✓ ৬ؔͳ͘ϑϥοτʹ✓ શһ͕ࣗͰߟ͑ͯ͢✓ શһͰ߹ҙ͢ΔʲࢀߟʳγϯɾະདྷձٞεΫϥϜΛࢧ͑Δ৫ͮ͘Γ
!5",",*/(ࣗୡͷ৫ͷ͜ͱΛҰॹʹߟ͑Δ
!5",",*/(ֶश͢Δ৫ֶश͢Δ৫ʗϐʔλʔɾ.ɽηϯήஶʢӳ࣏ग़൛ʣʮֶश͢Δ৫ʯೖʗখాཧҰஶʢӳ࣏ग़൛ʣ
!5",",*/(νʔϜͱ৺ཧత҆શੑͷؔ
!5",",*/(͋Εʁ৺ཧత҆શੑͷʁ
!5",",*/(νʔϜͱ৺ཧత҆શੑͷؔٛͷνʔϜνʔϜ✓ ΞαΠϯ͞ΕΔ✓ νʔϜʹਓͷू߹✓ ड͚ͳ࢟lूΊΒΕ͍ͯΔz
!5",",*/(ϫʔΫ͢ΔνʔϜ✓ νʔϜʹߩݙ͢Δ✓ νʔϜʹ✓ ೳಈతͳ࢟lू·ͬͯ͘ΔzνʔϜͱ৺ཧత҆શੑͷؔ
!5",",*/(ϫʔΫ͢ΔνʔϜ✓ νʔϜʹߩݙ͢Δ✓ νʔϜʹ✓ ೳಈతͳ࢟lू·ͬͯ͘ΔzνʔϜͱ৺ཧత҆શੑͷؔ৺ཧతʹ҆શ͔ͩΒਓ͕ू·ͬͯ͘Δ
!5",",*/(νʔϛϯάΛ્͢ΔཁҼʹෆ҆Βͳ͍ཧ༝ΛऔΓআ͘
!5",",*/(νʔϛϯάΛ͍ͯ͠Εࣗવͱ৺ཧత҆શੑ͕ඞཁʹͳΔ
!5",",*/(ຊ࣭͕ઌ໊લޙ͔Β͍ͭͯ͘Δ͘Β͍͕ͪΐ͏Ͳ͍͍
!5",",*/(Ϟϒϓϩάϥϛϯά
!5",",*/(Ϟϒϓϩάϥϛϯάͱ✓ νʔϜશһ͕Օॴʹू·ͬͯɺ ͭͷը໘ɾͭͷ1$Ͱ࡞ۀΛߦ͏͜ͱIUUQTXXXZPVUVCFDPNXBUDI [email protected]&*
!5",",*/(σΟεϓϨΠ1$
!5",",*/(υϥΠόʔφϏήʔλʔφϏήʔλʔφϏήʔλʔφϏήʔλʔ(6&45
!5",",*/(ϓϩςΠϯ).#
!5",",*/(ࢲͨͪͷϞϒϓϩάϥϛϯά✓ ৗʹϞϒϓϩάϥϛϯά✓ Ϟϒͷग़ೖΓࣗ༝✓ ϧʔϧࡉ͔ܾ͘ΊͣʹΓͳ͕Βม͍͑ͯ͘✓ ։ൃӦۀͳΜͰϞϒͰߦ͏ಇ͖ํͱͯ͠ͷϞϒϓϩάϥϛϯά
!5",",*/(ৗʹରΛ͠ͳ͍ͱࣄ͕ਐ·ͳ͍
!5",",*/(ϝλϑΝͱͯ͠ৗʹʮࢲୡWTʯͷߏਤʹͳΔ
!5",",*/(ੜ࢈ੑɾεϐʔυ ৺ཧత҆શੑ ϓϩμΫτ։ൃϊϋɾεΩϧൖϞϒϓϩάϥϛϯάͷͭͷϙΠϯτ
!5",",*/(ৄͪ͘͜͠Β
!5",",*/(·ͱΊ
!5",",*/(৺ཧత҆શੑͱ✓ ৽͍͠ͷͰͳ͍✓ ྑ͍νʔϜʹ͔֬ʹଘࡏ͍ͯ͠Δͷ✓ νʔϛϯάΛ͍ͯ͠ΕࣗવͱඞཁʹͳΔͷ✓ ͔ͩΒޙ͔Β͍ͭͯ͘Δ͘Β͍͕ͪΐ͏Ͳ͍͍
!5",",*/(৺ཧత҆શੑΛνʔϜʹͲ͏ҭΉ͔✓ Λ࡞Δ✓ ෆ҆ΛऔΓআ͘
!5",",*/(تͼlͪΌΜͱͷΛݟΒΕͯɺ ָ͠ΜͰͬͯΒ͑ͯɺ ҙਤͨ͠ਓʑʹ͘ීٴ͢ΔͷΛ σβΠϯ͠ɺ࡞Γ্͛Δ͜ͱɻ ͦΕ͕تͼͰ͋Δɻz+PZ *ODʗϦνϟʔυɾγΣϦμϯஶʢᠳӭࣾʣ
!5",",*/(ͬͨʔʂʂ
!5",",*/(ೃΕ߹͍͍͑Θ͚Ͱͳ͍ҙ
!5",",*/(1IPUPCZ5IF64"SNZ IUUQTHPPHM:F7VXೃΕ߹͍Ͱͳܹ͘͠߹͑Δ᪳͏͜ͱͳ͘ڞʹӽڥͰ͖Δઓ༑
!5",",*/(ϜμͳετϨεʹअຐ͞ΕΔͳ͍Α͏ʹͯ͠ඞཁͳετϨεʹ༐ؾΛ࣋ͬͯࡽ͞ΕΔ
!5",",*/(ϓϩμΫτ͕ಈ͍ͨ࣌ɺϓϩμΫΛ͓ͬͨ٬͞Μ͕تΜͰ͘Εͨ࣌ɺҰॹʹʮͬͨʔʯͱݴ͑Δؒ
!5",",*/(ͦ͏ݴͬͯ˓˓͔ͩΒͰ͖ΔΜͰ͠ΐձ໊ࣾPSݸਓ໊
!5",",*/(খ͞ͳʮശʯʹೖ͍ͬͯ·ͤΜ͔ʁl·ͬͨ͘Կݟ͍͑ͯͳ͍ঢ়ଶʹɺͪΌΜͱ໊લ͕͍͍ͭͯΔɻֶऀʰࣗݾٗᛋʱzlࣗଞͷਓͨͪΛΏ͕ΜͩͰݟ͍ͯΔɻଞͷਓʑ͍Θʹ͗͢ͳ͍ɻzࣗͷখ͞ͳʮശʯ͔Βग़͢Δํ๏ʗΞʔϏϯδϟʔɾΠϯεςΟνϡʔτஶʢେॻʣ
!5",",*/(ࣗͷνʔϜɾ৫ʹ͍ͭͯͬͱͦ͏ˏ5",",*/(
takaking22
oracle4engineer
miyatakoji
megabitsenmzq
harukasakihara
hirokiotsuka
iotengineer22
oogfranz
okunokentaro
regonn
chiroruxx
colopl
yururoi
pauljervisheath
samanthasiow
stephaniewalter
productmarketing
malarkey
jacobian
addyosmani
michaelherold
lara
tammielis
samlambert
danielanewman