モダン・ソフトウェアエンジニアリングのエッセンス / Essence of Modern Software Engineering

by Masanori Kado

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Ϟμϯɾιϑτ΢ΣΞΤϯδχΞϦϯά ͷΤοηϯε ೥݄೔ ϫΠΫϧגࣜձࣾ ֯੐యʢ!LENTOSʣ

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.BSUJO'PXMFSTBZTʢʣ w ݫ֨͗ͯ͢ɺՁ஋͕ݶΒΕΔ w "MJTUBJS$PDLCVSO͕ɺιϑτ΢ΣΞ։ൃͰ͸ਓ͕த৺తͳཁ ૉͰ͋Γɺਓ͸ຊ࣭తʹඇઢܗతͰ༧ଌෆೳͳ΋ͷͰ͋Δͱ આ໌ͯ͘͠Εͨ https://bliki-ja.github.io/Semat/

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.BSUJO'PXMFSTBZTʢʣ w ݫ֨͗ͯ͢ɺՁ஋͕ݶΒΕΔ w "MJTUBJS$PDLCVSO͕ɺιϑτ΢ΣΞ։ൃͰ͸ਓ͕த৺తͳཁ ૉͰ͋Γɺਓ͸ຊ࣭తʹඇઢܗతͰ༧ଌෆೳͳ΋ͷͰ͋Δͱ આ໌ͯ͘͠Εͨ w ਓ͕ѻ͍΍͍͢ܭࢉࣜͰهड़Ͱ͖Δ༧ଌՄೳͳΤʔδΣϯτʹ ͳΕ͹Մೳੑ͸͋Δ͔΋͠Εͳ͍ https://bliki-ja.github.io/Semat/

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ཧ࿦ͷ࢖༻ w ཧ࿦ͱ͸ʁ w J ݱ৅Λʮهड़ʯ͢Δ΋ͷ w JJ ݱ৅Λʮ༧ଌʯ͢Δ΋ͷ w ʮ༧ଌʯ͢ΔͨΊʹ͸ʮهड़ʯ͕ඞཁͰ͋Γɺ ʮهड़ʯ͢ΔͨΊʹ͸ʮݴޠʯ͕ඞཁͰ͋Δ

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ཧ࿦ͷ࢖༻ w ཧ࿦ͱ͸ʁ w J ݱ৅Λʮهड़ʯ͢Δ΋ͷ w JJ ݱ৅Λʮ༧ଌʯ͢Δ΋ͷ w ʮ༧ଌʯ͢ΔͨΊʹ͸ʮهड़ʯ͕ඞཁͰ͋Γɺ ʮهड़ʯ͢ΔͨΊʹ͸ʮݴޠʯ͕ඞཁͰ͋Δ w কདྷΛ༧ଌ͍͕ͨ͠ɺ·ͣ͸ͦͷͨΊͷݴޠ͕ඞཁ

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&TTFODFͷΞʔΩςΫνϟ

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&TTFODFͷΞʔΩςΫνϟ ᶃ ᶄ ᶅ

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ᶃΤοηϯγϟϧԽ͞Εͨख๏

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ͬ͘͟Γͱʮख๏ʯͱ͸Կ͔ w ʮιϑτ΢ΣΞΛ։ൃɾҡ࣋͢Δͱ͖ʹඞཁͱͳΔ͢΂ͯͷ͜ͱʹରͯ͠ɺ ΞυόΠεΛఏڙ͢Δ΋ͷʯ w ʮ͢΂ͯͷ͜ͱʯ͸΢ΥʔλʔϑΥʔϧख๏͕ཧղ͠΍͍͢ w ͏·͍͔͘ͳ͍͜ͱΛআ͚͹ʢʂʣͦΜͳʹѱ͘͸ͳ͍ w ݱ࣮తʹ͸ɺΞδϟΠϧΛؚΉ൓෮తख๏Ͱ΍Δ΂͖ w ͱ͸͍͑ɺࣗݾ૊৫Խ͕લఏͩͱʮ͢΂ͯͷ͜ͱʯΛݟಀ͠΍͍͢ w 㱤શମͷݟऔΓਤΛผ్༻ҙ͓ͯ͘͠ͱΑ͍

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ख๏ͷ໰୊͸େ͖ͭ͋͘Δ w ཚཱʹΑΔ଍ͷҾͬுΓ߹͍ʢख๏ͷઓ૪ʣ w ࣅͨΑ͏ͳ͜ͱΛ΍ͬͯΔͷʹ໊લ͕ҧ͏ w ෦඼ʢϓϥΫςΟεʣ͕ϞδϡʔϧԽ͞Ε͍ͯͨΒ࠶ར༻Մೳͳͷʹʂ w ख๏ͷ࡞ऀ͕ܾΊΔઈରతͳϧʔϧ͕͋Δʢख๏ͷ؂ࠈʣ w ʮͦΜͳ΋ͷͰ͸ࢭΊΛࢗͤΜʯ w ॻ੶Ͱ͸৮Ε͍ͯͳ͍͕ɺೝఆࢿ੍֨౓ͷ໰୊΋͋Γͦ͏

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ʮιϑτ΢ΣΞ͕ੈքΛ৯΂Δʯ࣌୅ʢʣ ιϑτ΢ΣΞͷख๏͚ͩΛޠͬͯΔ৔߹͡ΌͶ͑

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৯ޙͷख๏͸͜͏͋Γ͍ͨ wط੡඼Λ࢖͏ͷͰ͸ͳ͘ɺঢ়گʹ͋Θͤͯࣗ෼ͨͪͰख๏Λ࡞Γ͍ͨ w ͨͩ͠ɺθϩ͔Βख๏Λ࡞Δͷ͸େม͗͢Δ w 㱤طଘͷϓϥΫςΟεΛʮ߹੒ʯ͢Ε͹͍͍ʢʮख๏͸ϓϥΫςΟεͷ߹੒ʣ w ͦΕʹɺࣗ෼ͨͪͰख๏Λ࡞ͬͯ΋୭΋ཧղͯ͘͠Εͳ͍ w 㱤ʮهड़͢ΔݴޠʯΛ౷Ұͯ͠୭Ͱ΋ಡΊΔΑ͏ʹ͢Ε͹͍͍ w ϓϩμΫτͷ6.-ʹର͢Δϓϩηεͷ&TTFODFͱ͍͏Ґஔ͚ͮͬΆ͍ʁ ʢ6.-ͱಉ͘͡Β͍ͷر๬ͱઈ๬Λ࣋ͭͱ͍͍ͱࢥ͏ʜʜʣ

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ᶄΤοηϯγϟϧԽ͞Εͨ ϓϥΫςΟε

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ϓϥΫςΟεͱ͸Կ͔ w ख๏Λߏ੒͢Δ۩ମతͳ࡞ۀํ๏ͷ͜ͱ w ख๏ͱҧͬͯʮ͜ΜͳΜͳΜ΅͋ͬͯ΋͍͍Ͱ͔͢ΒͶʯ w ͭͷྖҬʹӨڹΛ༩͑ΔʢΞϧϑΝͷঢ়ଶΛมԽͤ͞Δʣɿ w ސ٬ w ιϦϡʔγϣϯʢٕज़ʣ w ׆ಈʢϓϩδΣΫτʣ

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ϓϥΫςΟεΛهड़͢Δݴޠ

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ϓϥΫςΟεΛهड़͢Δݴޠ ࢖͏΂͖ʮ΋ͷʯ ΍Δ΂͖ʮ͜ͱʯ ඞཁͳʮೳྗʯ ʢѻ͏ͷ΄͏͕Α͔ͬͨʁʣ

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ʮϖΞϓϩάϥϛϯάʯΛهड़ͯ͠Έͨ

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ʮϖΞϓϩάϥϛϯάʯΛهड़ͯ͠Έͨ ΍Δ΂͖ʮ͜ͱʯ ඞཁͳʮೳྗʯ ࢖͏΂͖ʮ΋ͷʯ

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ૉ௚ͳײ૝ w ͜Εͬͯɺຊ౰ʹΘ͔Γ΍͍͢ʜʜͷ͔ʁ w 6.-ͱಉ͘͡Β͍ͷر๬ͱઈ๬Λ࣋ͭͱ͍͍ͱࢥ͏ʢճ໨ʣ w ΋͏ͪΐͬͱઆ໌Λଓ͚·͢

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΍Δ΂͖ʮ͜ͱʯ͕ϓϥΫςΟεͷத৺ ΍Δ΂͖ʮ͜ͱʯ

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ʮ͜ͱʯͷৄࡉΛΧʔυʹهड़͢Δ

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ʮ͜ͱʯ͸ʮ΋ͷʯͷঢ়ଶΛม͑Δ

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༻ҙ͞ΕͨछྨͷΞϧϑΝʢ΋ͷʣ

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ΞϧϑΝ͸ΧʔυԽ͞Ε͍ͯΔ

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ΞϧϑΝ͸ෳ਺ͷঢ়ଶΛ࣋ͭ

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ૉ௚ͳײ૝ w ϓϥΫςΟεʹΑͬͯঢ়ଶΛมԽͤ͞Δͷ͸Θ͔Γ΍͍͢ w ঢ়ଶͳͲΛΧʔυʹ͢Δͷ͸͍͍ΞΠσΞͩͱࢥ͏ʂ w ్த͔Β&TTFODFͷઆ໌ʹ౿ΈࠐΜͰ͠·ͬͯͨʜʜɻ

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ᶅ&TTFODF ʢΧʔωϧݴޠʣ

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&TTFODFͱ͸ʁ &TTFODF Χʔωϧ ݴޠ ʮख๏ͷج൫ʯͱͳΔ΋ͷ

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&TTFODFݴޠ

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&TTFODFΧʔωϧ ͍ͭ͜Β͸۩ମత͗͢ΔͷͰ Χʔωϧʹೖ͍ͬͯͳ͍ ʢදݱܕ͚ͩఆٛ͞Ε͍ͯΔʣ ͕͜͜Χʔωϧ ɾ΋ͷ ɾ͜ͱ ɾೳྗ

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Χʔωϧͷ ΞϧϑΝʢ΋ͷʣ

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ΧʔωϧͷΞϧϑΝʢ΋ͷʣ

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ΞϧϑΝ͸ෳ਺ͷঢ়ଶΛ࣋ͭ

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ঢ়ଶΛਐḿͤ͞ΔͨΊʹߟ͑Δ ʮεςʔΫϗϧμʔΛר͖ࠐΉͨΊͷϛʔςΟϯάΛ։࠵ͯ͠ΈΔʁʯ

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ʮঢ়ଶΛ௥͑ʯήʔϜ

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ʮঢ়ଶΛ௥͑ʯήʔϜ

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ঢ়ଶͷਐḿͷՄࢹԽ

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ʢิ଍ʣ೔ຊޠͷΞϧϑΝঢ়ଶΧʔυͭ͘Γ·ͨ͠ IUUQTHJUIVCDPNLENTOSFTTFODFBMQIBTUBUFDBSETKB

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Χʔωϧͷ ΞΫςΟϏςΟεϖʔεʢ͜ͱʣ

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ΞΫςΟϏςΟεϖʔεʢ͜ͱʣ ਖ਼֬ʹ͸ϓϥΫςΟεͷΞΫςΟϏςΟʢ͜ͱʣΛೖΕΔʮ͜ͱͷೖΕ෺ʯ

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ϓϥΫςΟε͕଍Γͳ͍ͱ͜Ζ͕Θ͔Δ

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ʢิ଍ʣΧʔωϧͰ͸଍Γͳ͍ͱ͖ w Χʔωϧʹ͋ΔΞϧϑΝʢ΋ͷʣ΍ΞΫςΟϏςΟεϖʔεʢ͜ ͱʣͰ͸ෆे෼ͳ͜ͱ͕͋Δ w ϓϥΫςΟεͷ࡞੒࣌ʹΧʔωϧΛܧঝ֦ͯ͠ு͢Ε͹͍͍ w FHʦཁٻʧΛܧঝͨ͠ʦϓϩμΫτόοΫϩάΞΠςϜʧ w FHʦ࡞ۀΛ४උ͢ΔʧΛܧঝͨ͠ʦνʔϜͷΩοΫΦϑʧ

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εΫϥϜͱ&TTFODF

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εΫϥϜͷશମ૾

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&TTFODFݴޠʹϚοϐϯά

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&TTFODFݴޠͰදݱͨ͠΋ͷ

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ૉ௚ͳײ૝ w ͑ͬɺΊͬͪΌΘ͔Γʹ͘͘ͳͬͯʜʜͳ͍ʁ w 6.-ͱಉ͘͡Β͍ͷر๬ͱઈ๬Λ࣋ͭͱ͍͍ͱࢥ͏ʢճ໨ʣ w ΋͏ͪΐͬͱઆ໌Λଓ͚·͢

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ΧʔυԽ͞Εͨͷ͸

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ঢ়ଶ͕໌ࣔతʹͳͬͨͷ͸

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εΫϥϜ͚ͩ͡Όෆे෼ͳ͜ͱ΋Θ͔Δ ʢʦ׆ಈʧྖҬ͚ͩ͡Όͳ͍ؾ΋͢Δ͚Ͳɺෆे෼ͳͷ͸ಉҙʣ

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εΫϥϜͷ͸ࣦഊͯ͠Δ w &TTFODFͷΧʔυΛ࢖͑͹ɺͲ͜Ͱࣦഊ͍ͯ͠Δ͔͕Θ͔Δ w ࣍ͷʮঢ়ଶʯʹਐΉͨΊʹ͸ԿΛ͢΂͖͔ʁΛߟ͑ΒΕΔ IUUQTQBHFTTFSWJDFTTTJWBSKBDPCTPODPNFTTFOUJBMTDSVN

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ʢิ଍ʣ"HJMF&TTFOUJBMT΋͋Δ IUUQTQSBDUJDFMJCSBSZJWBSKBDPCTPODPN

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શମతͳҹ৅ w ΞδϟΠϧ։ൃͷʮָ͠͞ʯ͸େ෯μ΢ϯͯ͠Δؾ͕͢ΔͶ w ʮ͢ͰʹྲྀߦͬͯΔʯͦ͏͕ͩɺશવͦΜͳؾ͕͠ͳ͍ w ͋Ε΄Ͳආ͚͍ͯͨʮख๏ͷ؂ࠈʯײ͕ग़ͯͳ͍ʂʁ w 6.-ͱಉ͘͡Β͍ͷر๬ͱઈ๬Λ࣋ͭͱ͍͍ͱࢥ͏ʢճ໨ʣ w Ͱ΋ɺ։ൃ͕͏·͍ͬͯ͘ͳ͍ͱ͖ʹ࢖͏ͷ͸Αͦ͞͏ w ʮख๏ͷج൫ʯͱͳΔ҆ఆײ͸ͳΜͱͳ͘ײ͡ΒΕΔ w Ϡίϒιϯ͕ݩؾͦ͏ͰΑ͔ͬͨͰ͢

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։ൃ͕͏·͍ͬͯ͘ͳ͍ํ͸ੋඇͲ͏ͧʂ