アジャイル開発と品質エンジニアリング - QA時代の終わりとQE時代のはじまり / Agile Development and Quality Engineering

by Dai Fujihara

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ΞδϟΠϧ։ൃͱ ඼࣭ΤϯδχΞϦϯά NBCM*OD౻ݪେ "HJMF%FWFMPQNFOUBOE2VBMJUZ&OHJOFFSJOH %FWFMPQFST4VNNJU $ 2"࣌୅ͷऴΘΓͱ2&࣌୅ͷ͸͡·Γ

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"CPVU.F ʰΞδϟΠϧ։ൃͱεΫϥϜʱIUUQTXXXBNB[PODPKQEQɺʰϦʔϯ։ൃͷݱ৔ʱIUUQTXXXBNB[PODPKQEQ9 ౻ݪେ%BJ'VKJIBSB NBCM+BQBO גࣜձ͔͍ࣾͤ୅ද ˔ݱࡏɿಠཱͯ͠εʔύʔΞδϟΠϧίʔν ։ൃ૊৫ͷٕज़ސ໰ʢϓϩηεɺ2"ͳͲʣ $50΍&.΁ͷίʔνϯά NBCMͷ೔ຊސ٬޲͚αϙʔτ ˔ϝϧΧϦɿΤϯδχΞϦϯάϚωʔδϟʢ&. 4PGUXBSF&OHJOFFSJO5FTUʢ4&5 ςετࣗಈԽɺ2"૊৫্ཱͪ͛ ˔ָఱɿ&.ɺΞδϟΠϧίʔν ˔๭4*FSɿ+BWBΤϯδχΞ ˔׆ಈ ˓ʰΞδϟΠϧ։ൃͱεΫϥϜʱدߘ ˓ʰϦʔϯ։ൃͷݱ৔ʱ຋༁ ˓5XJUUFS!EBJQSFTFOUT ˓#MPHIUUQTEBJQSFTFOUTDPNTFSWJDF

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ΞδϟΠϧ࣌୅ͷ ΞδϟΠϧ඼࣭Λࢧ͑Δ ඼࣭ΤϯδχΞϦϯά ͦͯ͠ɺ2"ͷऴΘΓͱ 2&ͷ͸͡·Γ ͜Ε͔Βͷ೥

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ΞδϟΠϧ։ൃ͸ʮ౰ͨΓલʯʹ ˔ )1ʹΑΔௐࠪͰ͸ɺ͕ϋΠϒϦο υɺˋ͕ΞδϟΠϧ։ൃ΁ ˔ ,1.((MPCBM"HJMF4VSWFZͰ͸ɺࠓ ޙ೥ͰاۀϨϕϧͷΞδϟΠϧ։ൃ͕ ഒҎ্૿͑Δͱ༧૝ʢ ˔ EJHJUBMBJͷௐࠪͰ͸͕ΞδϟΠϧ ։ൃΛ࠾༻ʢ "HJMFJTUIFOFXOPSNBMIUUQTTPGUXBSFUFTUJOHHFOJVTDPNEPDTBBQEG   ,1.((MPCBM"HJMF4VSWFZIUUQTBTTFUTLQNHDPOUFOUEBNLQNHCFQEGBHJMFUSBOTGPSNBUJPOQEG   UI4UBUFPG"HJMF3FQPSUIUUQTEJHJUBMBJSFTPVSDFDFOUFSBOBMZTUSFQPSUTTUBUFPGBHJMFSFQPSU

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ΞδϟΠϧ඼࣭͸ʮ౰ͨΓલʯ͔ʁ ˔ࠜڧ͍2"͕Ϙτϧωο Ϋ໰୊ ˔εϓϦϯτޙ൒ͷෛ୲૿ ˔εϓϦϯτ͕ऴΘΒͳ͍

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ΞδϟΠϧ։ൃͷͨΊͷ඼࣭ ˔ΞδϟΠϧ඼࣭ͷͨΊʹ͸ɺΞδϟ ΠϧͳςεςΟϯά͕ඞཁ ˔ΞδϟΠϧςεςΟϯάͷͨΊʹ ͸ɺ඼࣭ͷΤϯδχΞϦϯάԽ ʢ2VBMJUZ&OHJOFFSJOH2&ʣ͕ඞཁ ˔඼࣭ΤϯδχΞϦϯάͷத৺తͳϓ ϥΫςΟεʹͳΓͭͭ͋Δͷ͕ɺࣗ ಈԽʢ$*$%ɺςετͳͲʣ

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"*Λ׆༻ͨ͠ϒϥ΢βςετࣗಈԽαʔϏε ˔Ϛʔϒϧ͡Όͳͯ͘ϝΠϒϧ ˔ϘετϯͰ૑ۀʢγϦʔζ$ɺ ߹ܭˈ.ʣ ˔"*ɾΫϥ΢υɾ4BB4ܕ   ςετࣗಈԽαʔϏε ˔ϊʔίʔυɾϩʔίʔυͰ   ςετͷ࡞੒΍मਖ਼Մೳ

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IUUQTZPVUVCF5Y$F@S2@2 σϞಈը ΩϟϓνϟˍϦϓϨΠͰϊʔ ίʔυɾϩʔίʔυ

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ࣗಈςετͷਐԽ ͦͷ"* 1IPUPCZ1PTTFTTFE1IPUPHSBQIZPO6OTQMBTI

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Φʔτώʔϧʢࣗݾम෮ʣ

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ϏδϡΞϧςετɾϏδϡΞϧϦάϨογϣϯ ˔ ಈ͖ͷਖ਼͠͞ͱݟͨ໨ͷਖ਼ ͠͞ ˔ ਖ਼֬͠͞ೝ΋ࣗಈԽ ˔ ͞ΑͳΒʮਖ਼͘͠දࣔ͞Ε Δ͜ͱʯ εΫϦʔϯγϣοτςετͱ΋ݺ͹Ε͍ͯΔTDSFFOTIPUUFTUJOHGPSBMMZPVS$PNQPTF!1SFWJFXTIUUQTQSPBOESPJEEFWDPNBVUPNBUJDTDSFFOTIPUUFTUJOHGPSBMMZPVSDPNQPTFQSFWJFXTBEEGFDD

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ࣗಈςετͷਐԽ ͦͷߴ଎Խ 1IPUPCZ5ZMFS$MFNNFOTFOPO6OTQMBTI

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ςετͷߴ଎Խ ˔࣮ߦ؀ڥͷਐԽʹΑ ͬͯ໿ˋߴ଎Խ ˔ฒྻ࣮ߦͰ࣌ؒ୹ॖ ˔࡞੒ɾӡ༻΋ϊʔί ʔυɾϩʔίʔυͰ ୹ॖ

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IUUQTZPVUVCFFQ06*.Y+G$P σϞಈը $-*Ͱߴ଎࣮ߦ

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ςετϐϥϛουͷύϥμΠϜγϑτ 5FTU1ZSBNJEIUUQTNBSUJOGPXMFSDPNCMJLJ5FTU1ZSBNJEIUNM ˔6*ςετ͸ʮ͸΍͘ʯͳ ͬͨ ˔6*ςετ͸ʮ҆͘ʯͳͬ ͨ ˔ςετͷόϥϯε͸   Ͳ͏ͳΔʁ

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ΞδϟΠϧ։ൃ࣌୅ͷ ΞδϟΠϧ඼࣭Λࢧ͑Δ ඼࣭ΤϯδχΞϦϯά ͦͯ͠ɺ2"ͷऴΘΓͱ 2&ͷ͸͡·Γ ͜Ε͔Βͷ೥

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඼࣭ΤϯδχΞϦϯάͷϙΠϯτ ։ൃαΠΫϧશମͰ඼࣭ҡ࣋ 1IPUPCZ5IJTJT&OHJOFFSJOH3"&OHPO6OTQMBTI

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εϓϦϯτ࠷ޙʹςετͰ͸஗͍ $POUJOVPVT5FTUJOHJO%FW0QTʜIUUQTEBOBTICZDPVLDPOUJOVPVTUFTUJOHJOEFWPQT

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$*$%ͷͨΊͷΠϯςάϨʔγϣϯʢ౷߹ʣ $*$% 4063$&$0/530- *446&53"$,*/( 64&3%"5" $0--"#03"5*0/ 3&1035*/(

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1SFWJFX؀ڥͰ&&ςετ࣮ߦσϞ IUUQTHJUIVCDPNEBJQSFTFOUTUFTUBVUPNBUJPOTBOECPYQVMM ᶃ13࡞੒ ᶄࣗಈݕ஌ ᶅ1SFWJFX؀ڥ ʹσϓϩΠ ᶆςετ ։࢝Λ௨஌ ᶇ&&࣮ߦ ᶈ4MBDLʹ ݁ՌΛ௨஌ ᶉ࣮ߦ݁ՌΛ 13্ʹදࣔ ʢ(JU)VC$IFDLTʣ

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ΤσΟλ ΞϓϦը໘ (JU)VC $JSDMF$* NBCM

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IUUQTZPVUVCFTCLN[('TKX σϞಈը 13༻1SFWJFX؀ڥʹ σϓϩΠˍ&&ࣗಈ࣮ߦ

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NBCM͸NBCMΛNBCMͰςετ͢Δ NBCM 5IF(VJEFUP5FTUJOHJO%FW0QT1JQFMJOFT

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඼࣭ΤϯδχΞϦϯά ͷϙΠϯτ ސ٬ମݧॏࢹ 1IPUPCZ5BSBT4IZQLBPO6OTQMBTI

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ΧελϚʔΤΫεϖϦΤϯεʢ$9ʣ͸࠷ॏཁ ͷফඅऀ͕ߪങͷҙࢥܾఆΛ͢Δࡍ ʹ69Λॏཁࢹ͍ͯ͠Δ ͷফඅऀ͸ɺͨͬͨҰ౓ͷݏͳܦݧ Ͱͦͷϒϥϯυ͔Β཭ΕΔ ͷैۀһ͕ɺ࢖༻͍ͯ͠Διϑτ΢ ΣΞ͕ݪҼͰɺ৬৔ʹෆຬΛ๊͍ͯ ͍Δ 18$ &YQFSJFODFJTFWFSZUIJOH)FSFTIPXUPHFUJUSJHIU (4UBUFPG4PGUXBSF)BQQJOFTT3FQPSU

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ςετΧόϨοδ͕ॏཁͳࢦඪʹ 4UBUFPG5FTUJOHJO%FW0QT#FODINBSL3FQPSU NBCM

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ϊʔίʔυɾϩʔίʔυͰΧόϨοδΛߴΊΔ && *OUFHSBUJPO 6OJU ୳ࡧ

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"1*౷߹͞ΕͨΤϯυπʔΤϯυͷςετ ˔ϊʔίʔυͰ"1*ςετ ˔ϨεϙϯεΛม਺ʹ֨ೲ౳ɺ "1*ΛγφϦΦܗࣜͰ࣮ߦՄ ೳ ˔1PTUNBO૒ํ޲࿈ܞ ˔ϚΠΫϩαʔϏε޲͚ͷ౷߹ ςετͱͯ͠΋ར༻Մೳ

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IUUQTZPVUVCFX"9[KL6QLT σϞಈը "1*ςετͰ ΧόϨοδΞοϓ

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඼࣭ΤϯδχΞϦϯά ͷϙΠϯτ ܧଓతϞχλϦϯά 1IPUPCZ/JDIPMBT$BQQFMMPPO6OTQMBTI

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σʔλɺσʔλɺσʔλ ˔ ΧόϨοδσʔλ ˔ ςετ࣮ߦσʔλ ˔ ςετͷϦεΫ΍τϨ ϯυͷධՁʹ׆༻

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2"ͷऴΘΓͱɺ2&ͷ͸͡·Γ 2"ʢ඼࣭อূʣ ΞϓϦέʔγϣϯͷ඼࣭อূ͕ ։ൃϓϩηεͷϫϯεςοϓ΁ ඼࣭ΤϯδχΞϦϯάʢ2& ΞϓϦέʔγϣϯͷ඼࣭ͱΧε λϚʔΤΫεϖϦΤϯεΛܧଓ తʹվળ͢ΔͨΊʹɺσʔλΛ ׆༻ͯ͠ɺ։ൃαΠΫϧશମͰ ඼࣭ҡ࣋

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඼࣭ΤϯδχΞϦϯάͷ੒Ռ 9 9 ΑΓ଎͍ςετ࡞੒ ςετ࣮૷࣌ؒͷ࡟ݮ ΑΓ଎͍ςετ࣮ߦ ςετΧόϨοδ ճؼαΠΫϧͷ࡟ݮ

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ΞδϟΠϧ࣌୅ͷ ΞδϟΠϧ඼࣭Λࢧ͑Δ ඼࣭ΤϯδχΞϦϯά ͦͯ͠ɺ2"ͷऴΘΓͱ 2&ͷ͸͡·Γ ͜Ε͔Βͷ೥

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ࣗಈςετͷ ΧόϨοδ͕ ͞Βʹ֦େ 1IPUPCZУѐщяіУѕћэхфѝщцPO6OTQMBTI

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୭͔Ұਓ͕શ෦2"ͳΜͯແཧ $POUJOVPVT5FTUJOHJO%FW0QTʜIUUQTEBOBTICZDPVLDPOUJOVPVTUFTUJOHJOEFWPQT

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஫໨͞ΕΔΞΫηγϏϦςΟ ೥͔Β೥ʹ͔͚ͯͷσδ λϧΞΫηγϏϦςΟૌুͷ૿Ճ཰ 6TFBCMF/FU`T.JE:FBS3FQPSU"%"%JHJUBM"DDFTTJCJMJUZ-BXTVJUT

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ςετʹର͢Δࢹ఺ͷมԽ ˔ ݕূɺ֬ೝ͕͍ۙ ˔ ࢓༷௨ΓͰ͋Δ͜ͱ ˔ ౰ͨΓલ඼࣭ ˔ ଥ౰ੑ͕͍ۙ ˔ զʑ͕ఏڙ͍ͨ͠΋ͷͰ͋Δ ͔ʁ ˔ Ϣʔβ͕ٻΊ͍ͯΔ΋ͷͰ͋Δ ͔ʁ ˔ ັྗత඼࣭ 7FSJGJDBUJPOࢹ఺ʢࣗಈʣ 7BMJEBUJPOࢹ఺ʢखಈʣ

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σʔλͱΠϯαΠτ ͷ࣌୅΁ 1IPUPCZ.BSLVT4QJTLFPO6OTQMBTI

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σʔλͱΠϯαΠτΛܦͯਓ͕ܾؒஅ ΠϯαΠτ ෼ੳ σʔλ ՄࢹԽ ΞΫγϣϯ ࣗಈԽɺ҆ఆԽɺϦϑΝΫ λϦϯάɺΧόϨοδΞο ϓɺςελϒϧԽ ҙࢥܾఆ ΠϯςϦδΣϯε

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ΞδϟΠϧ࣌୅ͷ ΞδϟΠϧ඼࣭Λࢧ͑Δ ඼࣭ΤϯδχΞϦϯά ͦͯ͠ɺ2"ͷऴΘΓͱ 2&ͷ͸͡·Γ ͜Ε͔Βͷ೥

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ΞδϟΠϧϦʔμʔγοϓͱ૊৫վֵIUUQTTQFBLFSEFDLDPNEBJQSFTFOUTC

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ΞδϟΠϧͰ໨ࢦͨ͠ࡔͷ্ͷӢ%FW-07&)BOHBS'MJHIU4OPX#BSSBHFIUUQTTQFBLFSEFDLDPNEBJQSFTFOUTB[JZBJSVEFNV[IJTJUBCBOGBMTFTIBOHGBMTFZVOOVNCFSEFWMPWFIBOHBSGMJHIUTOPXCBSSBHF TMJEF

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zνʔϜΛ༐ؾ͚ͮΔz ΞδϟΠϧϦʔμʔγοϓͱ૊৫վֵIUUQTTQFBLFSEFDLDPNEBJQSFTFOUTC

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ΞδϟΠϧ։ൃͱ ඼࣭ΤϯδχΞϦϯά NBCM*OD౻ݪେ "HJMF%FWFMPQNFOUBOE2VBMJUZ&OHJOFFSJOH %FWFMPQFST4VNNJU$ 2"࣌୅ͷऴΘΓͱ2&࣌୅ͷ͸͡·Γ

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ΞδϟΠϧςεςΟϯάͷ࣮ફ ։ൃνʔϜͷݪଇ ˔ ୹͍ΠςϨʔγϣϯ΍εϓϦϯτͰ඼࣭׆ಈ Λܧଓతʹߦ͏ ˔ ςετͱϨϏϡʔΛ൓෮͢ΔϓϩηεΛཱ֬ ͢Δ ˔ εϓϦϯτ͝ͱʹΞʔΩςΫνϟϨϏϡʔΛ ߦ͍ɺΠϯΫϦϝϯλϧɺΠςϨʔςΟϒʹ γεςϜΛਐԽͤ͞Δ ˔ ܧଓతͳϑΟʔυόοΫΛ௨ͯ͡ϓϩμΫτ Λݕূ͠ɺ͞Βʹଥ౰ੑ΋֬ೝ͢Δ ˔ มԽʹڧ͍νʔϜɺϓϩϑΣογϣφϧΛҭ ͯ஁͍͑ͯ͘ ։ൃνʔϜͷϓϥΫςΟε ˔ ΞδϟΠϧ։ൃ޲͚ςετશମܭըॻ ˔ ίʔυϨϏϡʔ ˔ ϦϑΝΫλϦϯάج४ͷఆٛ ˔ ৽͍͠ϝτϦΫε ˔ ৽͍͠όά؅ཧϓϩηε ˔ ୯ମςετ ˔ ୳ࡧςετ ˔ .VUBUJPOUFTUJOH ˔ ຊ൪ςετ ˔ ςετͷࣗಈԽ

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z͔ͬ͠Γͱͨ͠ςετͷ ϓϥΫςΟε͕͋Ε͹ɺ มԽ͸ڪΕΔʹ଍Βͳ͍z (PPHMFͷιϑτ΢ΣΞΤϯδχΞϦϯάʕʕ࣋ଓՄೳͳϓϩάϥϛϯάΛࢧ͑Δٕज़ɺจԽɺϓϩηεIUUQTXXXPSFJMMZDPKQCPPLT

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zςετ͸ίετͰ͸ͳ͘ ςετͰεϐʔυΛ্͛Δz ߴڮणҰॻ੶ҰཡᠳӭࣾIUUQTXXXTIPFJTIBDPKQCPPLBVUIPS σδλϧϋʔπ$540 $IJFG5FTUJOH4PMVUJPO0GGJDFS ࠷ߴςετιϦϡʔγϣϯ੹೚ऀ ߴڮणҰࢯ

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zεϐʔυͱ඼࣭͸ ཱ྆Ͱ͖Δz ʰϦʔϯ։ൃͷຊ࣭ʱϝΞϦʔτϜɾϙοϖϯσΟʔΫஶIUUQTXXXBNB[PODPKQEQ9

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มԽ͸΋͏ා͘ͳ͍ɻ ςετ͸εϐʔυͷͨΊͷ౤ࢿͱͳΔɻ εϐʔυͱ඼࣭͸ཱ྆Ͱ͖Δɻ

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զʑ͸ΑΓΞδϟΠϧʹͳΕΔɻ ະདྷ͸ࠓͩɻ

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ʰϦʔϯ։ൃͷຊ࣭ʱϝΞϦʔτϜɾϙοϖϯσΟʔΫஶ

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5IBOLZPVWFSZNVDI ݄࣍΢ΣϏφʔ։࠵தʂ ʮ୳ࡧతςετʯʮςετࣗಈԽʯʮ࣍ੈ୅ 2"૊৫ʯͱ͍ͬͨςʔϚΛ΋ͱʹʮΞδϟ Πϧɾ%FW0QT࣌୅ͷςετ΍඼࣭อূʯΛ ໨ࢦ͢΢ΣϒφʔͰ͢ɻ ࠓޙ΋ɺ͞·͟·ͳτϐοΫ΍ɺͦͷಓͷϓ ϩϑΣογϣφϧʹ͝ొஃ͍ͨͩ͘༧ఆͰ ͢ɻ IUUQTNBCMKBQBODPOOQBTTDPN ࠓ͙͢Ͱ͖ΔिؒͷແྉτϥΠΞϧʂ τϥΠΞϧ͸ແྉɻೲಘߦ͘·ͰػೳΛ͓ࢼ͠ ͍ͩ͘͞ɻ σϞϦΫΤετ΋େ׻ܴʂ ٕज़τϨϯυ΍࣮ࣄྫΛ·͑ͨ͡σϞ.5(΋͓ ؾܰʹͲ͏ͧʂ IUUQTXXXNBCMDPNKBQBO