ϓνϞϒ͔Β࢝ΊͯΈΑ͏ দԼ७ 1

@jxmtst / @jxmtst.bsky.social দԼ७ ΞδϟΠϧͳσϕϩούʔΛ໨ࢦ͢ ϑϦʔϥϯεͷςοΫϦʔυͰ͢ 1 ࣗݾ঺հ 2 ScrumMaster’sNight! ScrumDeveloper’sNight! https://minkabu.jp 045ͷίϛϡχςΟΛӡӦ͍ͯ͠·͢

ࠓ೔͓఻͍͑ͨ͜͠ͱ ϞϒϓϩάϥϛϯάʢϞϒϓϩʣΛ࢝ΊΔͱ͍͏͜ͱ Ϟϒϓϩ͸ෑډ͕ গ͠ ߴ͍ ԿނϞϒϓϩΛ࢝Ί͔ͨͬͨͷ͔ ࣮ࡍʹͲ͏࢝Ί͔ͨ ϞϒΛश׳Խ͢ΔͨΊͷϓϥΫςΟε 3

Ϟϒϓϩάϥϛϯά Ϟϒϓϩ Software Teaming: A Mob Programming, Whole-Team Approach Woody Zuill and Kevin Meadows ͢΂ͯͷ༏Εͨ಄೴͕ ಉ͜͡ͱΛ ಉ࣌͡ ಉ͡৔ॴ ಉ͡ίϯϐϡʔλʔ্Ͱ Ұॹʹಇ͘ࣄ 4 All the brilliant minds working together on the same thing… at the same time… in the same space… at the same computer

Ϟϒϓϩ͸ෑډ͕ গ͠ ߴ͍ 5

Ϟϒϓϩ͸ෑډ͕ গ͠ ߴ͍ ϞϒϓϩΛ࢝ΊΔલʹͲ͏ࢥ͍͔ͬͯͨʹ͍ͭͯͷϝϯόʔͷ੠ ʮࣗ෼ҰਓͰ΋͘΋͘ͱ࡞ۀ͢Δͷ͕౰ͨΓલͩͬͨͷͰɺ໘౗ͱ͍͏ؾ͕࣋ͪ͋ͬͨʯ ʮϞϒ͡Όͳͯ͘΋ࠔͬͨΒνϟοτͰฉ͚Δ͠ɺ৘ใڞ༗ʹ΋ࠔ͍ͬͯͳ͔ͬͨʯ ʮϖΞϓϩͰे෼͡Όͳ͍͔ͳͱࢥ͍ͬͯͨʯ ʮͦ΋ͦ΋ϞϒϓϩͬͯԿ͔஌Βͳ͔ͬͨͷͰɺͳͯ͘΋ࠔ͍ͬͯͳ͔ͬͨʯ ʮ࣌ؒΛ߹ΘͤΔͷ͕େมͦ͏ʯ ˠ΍Βͳͯ͘΋ࠔͬͯͳ͍ʢͱࢥ͍ͬͯΔʣ

Ϟϒϓϩ͸ෑډ͕ গ͠ ߴ͍ ϞϒϓϩΛ࢝ΊΔલͷϚωʔδϟʔ΍εςʔΫϗϧμʔͷ੠ ʮੜ࢈ੑ͕Լ͕ΔΜ͡Όͳ͍ʁʯ ʮਓͰҰॹʹ΍ΔͷͰ͸ͳͯ͘ɺϖΞϓϩΛ૊࡞Ε͹ྑ͍ͷͰ͸ʁʯ ˠ࣮ࡍʹݟ͔͚ͷੜ࢈ੑ͸Լ͕ΔͷͰࢦఠ͸ਖ਼͍͠ɻ ˠແཧղ͔Β֎ѹ͕͋ͬͯ࢝ΊΔ·Ͱʹෑډ͕͋Δ৔߹͕͋Δ

࢝ΊΔͨΊʹ ·ͣඞཁͳ΋ͷ 8

΍Γ͍ͨͱ͍͏৘೤ ৽͍͠ΞΠσΞΛಋೖ͢ΔͨΊʹɺ ͦͷΞΠσΞʹ͔͚Δ৘೤Ͱɺ ͋ͳͨࣗ਎Λಥ͖ಈ͔ͦ͏ɻ “Fearless Change 1 - Evangelist” 9

ࢲͷ৘೤͸Ͳ͔͜Βདྷ͔ͨ 4DSVN'FTU0TBLB ʮ&TTFOUJBM.PC1SPHSBNNJOHʙ࣮ફऀ͕ߟ͑ΔϞϒͷՁ஋ ݪଇ ϓϥΫςΟεʙʯ 10

lΤοηϯγϟϧϞϒϓϩάϥϛϯάʙ࣮ફऀ͕ߟ͑ΔϞϒͷՁ஋ ݪଇ ϓϥΫςΟεʙz *LVP4VZBNB 11

ݸਓͰͷ։ൃʹݶքΛײ͍ͯͯ͡νʔϜ։ൃʹ܏౗͍ͯͨ͠ࢲͷ৺ʹࢗͬͨ͞ 12

࣮͸ϞϒϓϩͰͷ։ൃ͸Ұ౓΍ͬͨ͜ͱ͕͕͋ͬͨఆண͠ͳ͔ͬͨ Ϟϒϓϩ͕͍ͨ͠Ͱ͢ʜ ͦͯ͠श׳Խͨ͠ઌʹ͋Δ্ڃͷνʔϜΛखʹೖΕ͍ͨʂ

Ͳ͏࢝ΊΔ͔ 14

Mob Programming 15

2VJDL4UBSU(VJEF w νʔϜͷن໛ɿɺਓɻ w ग़੮ͱࢀՃ͸೚ҙͱ͢Δɻ w շదͰɺ૊Έཱͯ΍࢖༻͕؆୯ͳ෺ཧతͳηοτΞοϓΛख഑͢Δɻ w υϥΠόʔͱφϏήʔλʔͷϞσϧʹै͏ɻ w ަ୅࣌ؒ͸ʙ෼ͱ͢Δɻ w ࿅श໰୊ʹऔΓ૊Ήɻ w ຖिʙ࣌ؒɺ·ͨ͸ຖ೔ʙ࣌ؒߦ͏ɻ w ڵຯͷ͋Δਓ͸୭Ͱ΋༠͏ɻ w ༏͠͞ɺࢥ͍΍ΓɺܟҙΛࣔ͢Α͏ʹ͢Δɻ w ֤ηογϣϯͷޙʹ୹͍ৼΓฦΓΛߦ͏ɻ

ΞδϟΠϧαϜϥΠ 17

ϓϩδΣΫτ͕৽࢝͘͠·ͬͨ࣌఺Ͱ͸ɺͦͷ੒ޭʹ͍ͭͯࢥ͍ඳ͘ ࢟͸ਓʹΑͬͯͦΕͧΕେ͖͘ҟͳΔ΋ͷͩ ୈࡾষΈΜͳΛόεʹ৐ͤΔ 18

̐ͭͷ࣭໰ ࣗ෼͸Կ͕ಘҙͳͷ͔ʁ ࣗ෼͸Ͳ͏΍ͬͯߩݙ͢Δͭ΋Γ͔ʁ ࣗ෼͕େ੾ʹࢥ͏Ձ஋͸Կ͔ʁ νʔϜϝϯόʔ͸ࣗ෼ʹͲΜͳ੒ՌΛظ଴͍ͯ͠Δͱࢥ͏͔ʁ υϥοΧʔ෩ΤΫηαΠζ

զʑ͸ͳͥ͜͜ʹ͍Δͷ͔ ΤϨϕʔλʔϐον ύοέʔδσβΠϯ ΍Βͳ͍͜ͱϦετʢϞϒͷதͰ΍Βͳ͍͜ͱ΋ܾΊΔʣ ϓϩδΣΫτίϛϡχςΟ͸ʜ ٕज़తͳղܾࡦͷ֓ཁ ໷΋຾Εͳ͘ͳΔΑ͏ͳ໰୊͸ͳΜͩΖ͏ʁʢϦεΫͷ֬ೝʣ Զͨͪͷz"νʔϜz ظؒΛݟۃΊΔ τϨʔυΦϑɾεϥΠμʔ Կ͕ͲΕ͚ͩඞཁͳͷ͔ ΠϯηϓγϣϯσοΩ 20

Ͳ͏࢝Ί͔ͨ 21

Ͳ͏࢝Ί͔ͨ νʔϜϝϯόʔߏ੒ ςοΫϦʔυ ۀ຿ҕୗɺ౦ژࡏॅͨ·ʹग़ࣾ͢ΔޕલதʹνʔϜ֎λεΫ͕ೖΔࣄ΋͋Δ γχΞ1( ࣾһɺઍ༿ࡏॅɺϦϞʔτɺͨ·ʹ࣌ա͗ʹࢠڙͷ͓ܴ͕͑͋Δ δϡχΞ1( ۀ຿ҕୗɺ޿ౡࡏॅɺ࣌ۈ຿ ϓϥοτϑΥʔϜνʔϜ ओͳλεΫɺϨΨγʔγεςϜͷҠߦ Ҡߦ࣌ʹݱࡏͷΞʔΩςΫνϟʹ߹ΘͤͨϦϑΝΫλϦϯά΍ෆཁͳ࢓༷ͷ࡟আΛߦ͏

Ͳ͏࢝Ί͔ͨ ΩοΫΦϑ ϞϒΛ͢ΔνʔϜͱͯ͠ͷΩοΫΦϑΛվΊͯߦͬͨ υϥοΨʔ෩ΤΫηαΠζ ظ଴஋ͷࡲΓ߹Θͤ ΠϯηϓγϣϯσοΩ ಛʹʮτϨʔυΦϑεϥΠμʔʯͱʮ΍Βͳ͍ࣄʯ͸ޙͰԿ౓΋ϞϒϓϩͷதͰ֬ೝΛͨ͠ νʔϜͷ໨తɾ໨ඪΛ࡞ͬͯؾ࣋ͪͷϕΫτϧΛ߹Θͤͨ

Ͳ͏࢝Ί͔ͨ ·ͣ͸ϓνϞϒ͔Β ೔ͷ͏ͪͷ͚࣌ؒͩϞϒϓϩΛ͢ΔʢԆ௕ͯ͠΋ྑ͍ʣ Ϟϒϓϩͷ୊ࡐ͸ຖճ௚લʹߦ͏σΠϦʔεΫϥϜͷதͰܾΊΔ λεΫ͕׬੒͠ͳ͍৔߹͸ϝϯόʔʹ॓୊ͱ͍͏ܗͰ࣋ͪؼͬͯ΋Βͬͯ࣍ͷϞϒϓϩͰ౴ ͑߹ΘͤΛ͢Δ Ϟϒϓϩ͸͢ΔɺͰ΋ͦΕʹݻࣥ͗͢͠ͳ͍ɺࢀՃ͸೚ҙ

࣮ࡍʹͲ͏࢝Ί͔ͨ 25

ϞϒΛश׳Խ͢ΔͨΊͷϓϥΫςΟε ·ͣ͸ϞϒͰ΍Δ ৄ͍͠ਓΛϞϒʹݺͿ ·ͣ͸ύʔΩϯάϩοτʹ ͡Ό͋ͦΕ͸॓୊Ͱ

·ͣ͸ϞϒͰ΍Δ શͯͷλεΫ͸ݸਓͰ΍Ζ͏ͱࢥ͑͹Ͱ͖ͯ͠·͏ ͜ͷঢ়گʹ͓͍ͯ ݸਓͰ࢝Ίͯ͠·͏ͱҰ౓ࣽ٧·ͬͯ͠·͏ͱ͕࣌ؒଟ͔͔ͬͯ͘͠·͏ɺϞϒͰϨϏϡʔ͠ ͨͱͯ͠΋ݟམͱ͕͠ൃੜ͠΍͘͢ɺଐਓੑ΋ߴ·Γқ͍ɻ ͦ͜Ͱ λεΫΛ·ͣϞϒϓϩͰ࢝ΊΔ͜ͱͰଐਓੑ͕ഉআ͞ΕΔɻམͱ͠ॴΛܾΊ͔ͯΒλεΫʹཱ ͪ޲͔͏ࣄ͕Ͱ͖Δ Ϟϒͷ࣌ؒͰऴΘΒͳ͔ͬͨ΋ͷΛݸਓλεΫͱͯ࣋ͪ͠ؼΔ͜ͱ͸͍ͯ͠Δ

ৄ͍͠ਓΛϞϒʹݺͿ νʔϜ಺͚ͩͰ͸஌ݟ͕଍Γͳ͍ࣄ͕͋Δ ͦͷঢ়گʹ͓͍ͯ ಛผͳϛʔςΟϯάΛઃఆͯ͠͠·͏ͱɺ࣌ؒͷ֬อ͕೉͔ͬͨ͠ΓɺࢀՃͰ͖ͳ͍ਓ͕ग़ͯ ͠·͏ ͦ͜Ͱ Ϟϒͷ࿮͸ৗʹݻఆͰ࠷௿ݶऔ͍ͬͯΔͷͰɺϞϒʹݺΜͰφϏήʔλʔΛ΍ͬͯ΋Β͏ࣄͰ ஌ݟͷڞ༗ͱղܾ͕ඞཁ࠷௿ݶͷ࣌ؒͰߦ͏ࣄ͕Ͱ͖Δ

·ͣ͸ύʔΩϯάϩοτʹ ͋ΔλεΫΛϞϒϓϩͰফԽ͍ͯ͠Δ࣌ʹɺؾʹͳΔࣄ͕͔࣍Β࣍΁ͱग़ͯ͘Δࣄ͕͋Δ ͦͷঢ়گʹ͓͍ͯ ҰͭҰͭखΛ͚ͭͯߦ͘ͱɺ࠷ॳͷλεΫ͕͍ͭ·Ͱܦͬͯ΋ऴΘΒͳ͍ ͦ͜Ͱ গ͠Ͱ΋͕͔͔࣌ؒΓͦ͏Ͱ͋Ε͹ύʔΩϯάϩοτʹೖΕ͓͖ͯɺλεΫ͕׬͔ྃͯ͠Βվ ΊͯύʔΩϯάϩοτ߲໨ͷৄࡉͷ֬ೝ΍༏ઌॱҐ෇͚Λߦ͏͜ͱͰɺશମͷϑϩʔޮ཰্͕ ͕Δɻ

͡Ό͋͜Ε͸॓୊Ͱ ϞϒϓϩΛ͍ͯ͠Δ࠷தʹɺςετσʔλͷ࡞੒΍ίʔυͷԣల։ͳͲܾ·Γ͖ͬͨ࣌ؒΛऔ Γͦ͏ͳλεΫ͕ൃੜ͢Δɻ ͦͷঢ়گʹ͓͍ͯ ࣌ؒΛ͔͚ͯͦͷλεΫΛ΍ͬͯ͠·͏ͱޱ਺͕ݮͬͨΓɺϝϯόʔͷूதྗ͕མͪͯ͠·ͬ ͯผͷࣄΛ࢝Ίͯ͠·͏͜ͱ͕͋Δ ͦ͜Ͱ ͦ͏͍ͬͨλεΫ͸ʮ॓୊ʯͱͯ͠੾Γग़ͯ͠୭͔ʹ࣋ͪؼͬͯ΋Β͏ɻ࣍ճͷϞϒϓϩͷ࠷ ॳʹϨϏϡʔΛߦ͍׬੒ͤ͞Δɻ

ݱࡏͷνʔϜͷܗʢϲ݄ 31

Ϟϒϓϩ͕श׳Խ͞Εͨ 2ϞϒϓϩΛॳΊͯମݧͨ͠ϝϯόʔͷ੠ ʮೋਓ͕ࡾਓʹͳͬͨ࣌ʹҰਓ૿͑ͨҎ্ͷࢹ఺ͷ޿͕ΓΛײͨ͡ʯ ʮօͷ஌͕ࣝগͳ͚Ε͹গͳ͍΄Ͳ༗ޮͩͱײ͡Δʯ ʮຖ೔—࣌ؒ͸࠷ॳ͸௕͍ͳͬͯײ͚ͨ͡Ͳɺ΍ͬͯΈΔͱͦ͏Ͱ͸ͳ͘ͳͬͯ͘Δʯ ʮΘ͔Βͳ͍ࣄ͕͋ͬͯ΋Ϟϒ͕͋ΔͷͰେৎ෉ͱ͍͏҆৺ײ͕͋Δʯ 2Ϟϒ͕ͳ͍ݱ৔ʹߦͬͨΒͲ͏͢Δ͔ʁ ʮઈରϞϒΛ͠Α͏ͱݴ͍ग़͢ʯ ʮΘ͔Βͳ͍ࣄ͕ଟ͚Ε͹ଟ͍΄ͲϞϒΛ΍Γͨ͘ͳΔͱࢥ͏ʯ

্ڃϞϒϓϩ΁ͷࡔΛొΓ࢝ΊΔࣄ͕Ͱ͖ͨ 33

Here's the beauty of Mob Programming--it's a nearly-zero-risk experiment. If you don't like it, don't do it. If you don't think you'd like it, then you'll never really know. Which might be okay. But if you want to know just how good we can be at software development, it's worth an experiment. Ϟϒϓϩάϥϛϯάͷඒ఺͸ɺ΄΅ϦεΫͷͳ͍࣮ݧ͕Ͱ͖Δ͜ͱͰ͢ɻ΋͠ؾʹೖΒͳ͔ͬͨΒɺ ΍Βͳ͚Ε͹͍͍ɻ΋͠ؾʹೖΔͱࢥΘͳ͚Ε͹ɺຊ౰ʹͲ͏ͳͷ͔͸Θ͔Βͳ͍ɻͦΕ΋ྑ͍͔΋ ͠Ε·ͤΜɻ͔͠͠ɺιϑτ΢ΣΞ։ൃͰࢲ͕ͨͪͲΕ΄Ͳ༏Ε͍ͯΔ͔Λ஌Γ͍ͨͷͰ͋Ε͹ɺ࣮ ݧ͢ΔՁ஋͕͋Γ·͢ɻ “Software Teaming: A Mob Programming, Whole-Team Approach” Foreword by KentBeck 34

ྑ͍ϞϒϓϩϥΠϑΛ 35

4PGUXBSF5FBNJOH".PC1SPHSBNNJOH 8IPMF5FBN"QQSPBDI4FDPOE&EJUJPO8PPEZ;VJMM ,FWJO.FBEPXT .PC1SPHSBNNJOH"8IPMF5FBN"QQSPBDIw8PPEZ;VJMMw(050 :PV5VCF 8PPEZ;VJMM ϞϒϓϩάϥϛϯάνʔϜશମͷΞϓϩʔνCZ8PPEZ;VJMM5SBOTMBUFECZ:BTVOPCV,BXBHVDIJ *LVP4VZBNBBOE,FO.BUTVNPUP 'FBSMFTT$IBOHFΞδϟΠϧʹޮ͘ΞΠσΞΛ૊৫ʹ޿ΊΔͨΊͷͷύλʔϯ.BSZ-ZOO.BOOT -JOEB3JTJOH ஶ ΞδϟΠϧαϜϥΠʕʕୡਓ։ൃऀ΁ͷಓ+POBUIBO3BTNVTTPO ஶ ੢ଜ௚ਓ ֯୩৴ଠ࿠ ؂༁ ۙ౻मฏ ֻ֯୓ະ ຋༁ ΤοηϯγϟϧϞϒϓϩάϥϛϯάʙ࣮ફऀ͕ߟ͑ΔϞϒͷՁ஋ ݪଇ ϓϥΫςΟεʙ*LVP4VZBNB FTTFOUJBMNPCQSPHSBNNJOH (JU)VC *LVP4VZBNB REFERENCES 36