ソフトウェアエンジニアが品質保証を学んでわかったこと / What software engineers have learned about quality assurance

ιϑτ΢ΣΞΤϯδχΞ͕   ඼࣭อূΛֶΜͰ   Θ͔ͬͨ͜ͱ !IJTBJDIJ

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ࣗݾ঺հ w !IJTBJDIJ ͻ͍ͪ͞ w גࣜձࣾ9ιϑτ΢ΣΞΤϯδχΞ
w 'MVUUFS͕޷͖ w ςετΛॻ͖΍͘͢͢Δͷ͕޷͖

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ϲ݄લͷͻ͍ͪ͞ w ೥݄͔Β඼࣭อূʹ͍ͭͯ΍Δ͜ͱʹͳͬ ͨ w ୯ମςετ͸ͦͦ͜͜ॻ͍͖͚ͯͨͲɺ඼࣭อূ ʹ͍ͭͯ͸ֶΜͩ͜ͱ͕ͳ͔ͬͨ
w ඼࣭อূʹֶ͍ͭͯͿඞཁ͕͋Δʂ w ͜ͷϲ݄͘Β͍ͰֶΜͩ͜ͱΛͬ͘͟Γڞ༗͠ ·͢ ʘ΍΂͑ʗ

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ඼࣭ͱ͸ʁ

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ϲ݄લͷͻ͍ͪ͞ w ඼࣭ͬͯͳʹʁ w ඼࣭͕ߴ͍ʹόά͕ͳ͍ͱ͔ʁʁʁ ʘΘ͔ΒΜʗ

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ࠓͷཧղ w ඼࣭ͷఆٛ͸৭ʑ͋ΔɻίϯςΩετ΍ਓʹΑͬͯ ҧ͏ w l඼࣭ͱ͸୭͔ʹͱͬͯͷՁ஋Ͱ͋ΔzCZϫΠϯ όʔά
w ඼࣭ʹؔ͢Δ࿩Λ͢Δ࣌ɺͪΌΜͱఆٛΛ͢Δͷ͕ େࣄ

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ඼࣭อূͱ͸ʁ

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ϲ݄લͷͻ͍ͪ͞ w ඼࣭อূͱ͸ɺ։ൃνʔϜ͕ʮ͜ͷϓϩμΫτ͸ ඼࣭͕ߴ͍ʂʯͱݴ͑Δঢ়ଶʹ͢Δ͜ͱͩͱࢥͬ ͍ͯͨ ʘΘ͔ΒΜʗ

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ࠓͷཧղ w ඼࣭ͱ͸ʮސ٬ʹͱͬͯͷՁ஋ʯͱఆٛͯ͠ΈΔ w ඼࣭อূʹސ٬ʹͱͬͯՁ஋͕͋Δͱݴ͑Δঢ়ଶʹ͢Δ w ͔͠͠ɺϓϩμΫτ͕ސ٬ʹͱͬͯՁ஋͕͋Δ͔Ͳ͏͔൑
அɾධՁ͢Δͷ͸ސ٬ w lࣗ෼ͨͪͷϓϩμΫτͷ඼࣭Λ൑அɾධՁ͢Δ͜ͱ͕Ͱ͖ Δͷ͸ɺ།Ұ͓٬༷ͷΈͰ͋Δͱ৴͡ΔɻzCZϞμϯςε ςΟϯάͷݪଇ w ։ൃνʔϜ͕ʮ͜ͷϓϩμΫτ͸඼࣭͕ߴ͍ʂ ސ٬ʹ ͱͬͯՁ஋͕͋Δ ʯͱݴ͑Δঢ়ଶʹ͢Δͷ͸೉͍͠

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ϓϩμΫτ඼࣭Λอূ͢Δʹ͸ w ։ൃνʔϜͰʮ͜ΕΛຬͨͤ͹ސ٬ʹͱͬͯՁ஋͕ ͋Γ·͢ʯͱ͍͏ج४Λ࡞ͬͯ֬ೝͨ͠Γ͢Δ͜ͱ ͸೉͍͠ w େࣄͳͷ͸ɺϦϦʔεલʹͳΔ΂͘ސ٬ʹͱͬͯՁ
஋͕͋Δ΋ͷΛ࡞ΓɺϦϦʔεޙʹ΋ܽؕͷӨڹൣ ғΛͳΔ΂͘খͨ͘͞͠Γૣ͘ݮΒ͢͜ͱ w "HJMF5FTUJOH$POEFOTFEͰ͸ɺ඼࣭Λ࡞ΓࠐΉͱ ݴͬͯΔ

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE Ͳ͏΍ͬͯ ඼࣭Λอূ͢Δʁ

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ϲ݄લͷͻ͍ͪ͞ w ϦϦʔεͷલʹςετΛߦͬͯ඼࣭Λอূ͢Δ ʢόά͕ͳ͍ͱݴ͑Δঢ়ଶʹ͢Δʣʂ w Α͋͘Δ։ൃϓϩηεͷਤ ʘΘ͔ΒΜʗ

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ࠓͷཧղ w ςετ͸ܽؕʹؾ෇͘खॿ͚͸ͯ͘͠ΕΔɻ͚Ͳɺ ࠜຊతʹܽؕΛ๷ࢭ͢Δ΋ͷͰ͸ͳ͍͕ܽؕ͠ͳ͍ ͜ͱΛূ໌͢Δ΋ͷͰ͸ͳ͍ w ඼࣭อূͰେࣄͳͷ͸ɺ඼࣭Λ࡞ΓࠐΉ͜ͱ
w ͦͷͨΊʹඞཁͳͷ͸ɺνʔϜશһ͕։ൃϓϩηε ͢΂ͯͷϑΣʔζͰςετΛ͢Δ w )PMJTUJDUFTUJOH

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE )PMJTUJDUFTUJOH Ҿ༻ݩIUUQTKBOFUHSFHPSZDBUFTUJOHGSPNBIPMJTUJDQPJOUPGWJFX

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ςετͱ͸ʁ

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ϲ݄લͷͻ͍ͪ͞ w ςετʹ࣮૷͞Εͨιϑτ΢ΣΞʹରͯ͠૝ఆ͠ ͨಈ͖Λ͢Δ͔֬ೝ͢Δ΋ͷ w ࣗಈςετ΍खಈςετͷ͜ͱΛࢦ͢ w
ιϑτ΢ΣΞΤϯδχΞ΍2"νʔϜ͕࣮ߦ͢Δ ʘΘ͔ΒΜʗ

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ࠓͷཧղ w νʔϜશһ͕։ൃϓϩηε͢΂ͯͷϑΣʔζͰςετ Λ͢Δ)PMJTUJDUFTUJOH w ιϑτ΢ΣΞ͕࣮૷͞Ε͍ͯͳ͍ϑΣʔζ΋͋Δ w
ιϑτ΢ΣΞҎ֎ͷ੒Ռ෺΋ςετ͢Δඞཁ͕͋Δ w ྫ͑͹࢓༷ॻͰ͋Ε͹ɺ࢓༷࿙Ε͕ͳ͍͔ͷϨ Ϗϡʔ΋ςετʹ͋ͨΔ w ςετͱ͸ɺ։ൃϓϩηεͷϑΣʔζͰग़དྷͨ੒Ռ ෺ʹରͯ͠νʔϜશһ͕૝ఆͨ͠΋ͷ͔֬ೝ͢Δ͜ͱ

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ·ͱΊ

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ֶΜͰΘ͔ͬͨ͜ͱ w ඼࣭Λఆٛ͢Δͷ͕ॏཁ w ϓϩμΫτ඼࣭Λอূ͢Δʹ͸ɺ඼࣭Λ࡞ΓࠐΉ͜ ͱ͕େࣄ w
඼࣭Λ࡞ΓࠐΉʹ͸ɺνʔϜશһ͕։ൃϓϩηε͢ ΂ͯͷϑΣʔζͰςετΛ͢Δʹ)PMJTUJDUFTUJOH w ςετͱ͸ɺ։ൃϓϩηεͷϑΣʔζͰग़དྷͨ੒Ռ ෺ʹରͯ͠νʔϜશһ͕૝ఆͨ͠΋ͷ͔֬ೝ͢Δ͜ ͱ

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ࢀߟจݙ w ʲ͜ͷ࡭ͰΑ͘Θ͔Δʳιϑτ΢ΣΞςετͷڭՊ ॻɹʦ૿ิվగୈ̎൛ʧ w ιϑτ΢ΣΞ඼࣭ΛߴΊΔ։ൃऀςετΞδϟΠϧ࣌୅ ͷ࣮ફతɾޮ཰తͳςετͷ΍Γํ
w ιϑτ΢ΣΞ඼࣭஌ࣝମܥΨΠυ ୈ൛ w "HJMF5FTUJOH$PEFOTFE+BQBOFTF&EJUJPO w ϞμϯςεςΟϯάͷݪଇ w +BOF(SFHPSZ͞Μͷൃදಈըɺϒϩά

ソフトウェアエンジニアが品質保証を学んでわかったこと / What software engineers have learned about quality assurance

ソフトウェアエンジニアが品質保証を学んでわかったこと / What software engineers have learned about quality assurance

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ιϑτ΢ΣΞΤϯδχΞ͕   ඼࣭อূΛֶΜͰ   Θ͔ͬͨ͜ͱ !IJTBJDIJ

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ࣗݾ঺հ w !IJTBJDIJ ͻ͍ͪ͞ w גࣜձࣾ9ιϑτ΢ΣΞΤϯδχΞ

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ϲ݄લͷͻ͍ͪ͞ w ೥݄͔Β඼࣭อূʹ͍ͭͯ΍Δ͜ͱʹͳͬ ͨ w ୯ମςετ͸ͦͦ͜͜ॻ͍͖͚ͯͨͲɺ඼࣭อূ ʹ͍ͭͯ͸ֶΜͩ͜ͱ͕ͳ͔ͬͨ

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ඼࣭ͱ͸ʁ

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ϲ݄લͷͻ͍ͪ͞ w ඼࣭ͬͯͳʹʁ w ඼࣭͕ߴ͍ʹόά͕ͳ͍ͱ͔ʁʁʁ ʘΘ͔ΒΜʗ

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ࠓͷཧղ w ඼࣭ͷఆٛ͸৭ʑ͋ΔɻίϯςΩετ΍ਓʹΑͬͯ ҧ͏ w l඼࣭ͱ͸୭͔ʹͱͬͯͷՁ஋Ͱ͋ΔzCZϫΠϯ όʔά

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ඼࣭อূͱ͸ʁ

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ϲ݄લͷͻ͍ͪ͞ w ඼࣭อূͱ͸ɺ։ൃνʔϜ͕ʮ͜ͷϓϩμΫτ͸ ඼࣭͕ߴ͍ʂʯͱݴ͑Δঢ়ଶʹ͢Δ͜ͱͩͱࢥͬ ͍ͯͨ ʘΘ͔ΒΜʗ

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ࠓͷཧղ w ඼࣭ͱ͸ʮސ٬ʹͱͬͯͷՁ஋ʯͱఆٛͯ͠ΈΔ w ඼࣭อূʹސ٬ʹͱͬͯՁ஋͕͋Δͱݴ͑Δঢ়ଶʹ͢Δ w ͔͠͠ɺϓϩμΫτ͕ސ٬ʹͱͬͯՁ஋͕͋Δ͔Ͳ͏͔൑

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ϓϩμΫτ඼࣭Λอূ͢Δʹ͸ w ։ൃνʔϜͰʮ͜ΕΛຬͨͤ͹ސ٬ʹͱͬͯՁ஋͕ ͋Γ·͢ʯͱ͍͏ج४Λ࡞ͬͯ֬ೝͨ͠Γ͢Δ͜ͱ ͸೉͍͠ w େࣄͳͷ͸ɺϦϦʔεલʹͳΔ΂͘ސ٬ʹͱͬͯՁ

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE Ͳ͏΍ͬͯ ඼࣭Λอূ͢Δʁ

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ϲ݄લͷͻ͍ͪ͞ w ϦϦʔεͷલʹςετΛߦͬͯ඼࣭Λอূ͢Δ ʢόά͕ͳ͍ͱݴ͑Δঢ়ଶʹ͢Δʣʂ w Α͋͘Δ։ൃϓϩηεͷਤ ʘΘ͔ΒΜʗ

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ࠓͷཧղ w ςετ͸ܽؕʹؾ෇͘खॿ͚͸ͯ͘͠ΕΔɻ͚Ͳɺ ࠜຊతʹܽؕΛ๷ࢭ͢Δ΋ͷͰ͸ͳ͍͕ܽؕ͠ͳ͍ ͜ͱΛূ໌͢Δ΋ͷͰ͸ͳ͍ w ඼࣭อূͰେࣄͳͷ͸ɺ඼࣭Λ࡞ΓࠐΉ͜ͱ

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE )PMJTUJDUFTUJOH Ҿ༻ݩIUUQTKBOFUHSFHPSZDBUFTUJOHGSPNBIPMJTUJDQPJOUPGWJFX

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ςετͱ͸ʁ

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ϲ݄લͷͻ͍ͪ͞ w ςετʹ࣮૷͞Εͨιϑτ΢ΣΞʹରͯ͠૝ఆ͠ ͨಈ͖Λ͢Δ͔֬ೝ͢Δ΋ͷ w ࣗಈςετ΍खಈςετͷ͜ͱΛࢦ͢ w

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ࠓͷཧղ w νʔϜશһ͕։ൃϓϩηε͢΂ͯͷϑΣʔζͰςετ Λ͢Δ)PMJTUJDUFTUJOH w ιϑτ΢ΣΞ͕࣮૷͞Ε͍ͯͳ͍ϑΣʔζ΋͋Δ w

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ·ͱΊ

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ֶΜͰΘ͔ͬͨ͜ͱ w ඼࣭Λఆٛ͢Δͷ͕ॏཁ w ϓϩμΫτ඼࣭Λอূ͢Δʹ͸ɺ඼࣭Λ࡞ΓࠐΉ͜ ͱ͕େࣄ w

$PQZSJHIU9 *OD"MMSJHIUSFTFSWFE ࢀߟจݙ w ʲ͜ͷ࡭ͰΑ͘Θ͔Δʳιϑτ΢ΣΞςετͷڭՊ ॻɹʦ૿ิվగୈ̎൛ʧ w ιϑτ΢ΣΞ඼࣭ΛߴΊΔ։ൃऀςετΞδϟΠϧ࣌୅ ͷ࣮ફతɾޮ཰తͳςετͷ΍Γํ