学習する組織の作り方

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ֶश͢Δ૊৫ͷ࡞Γํ 2019/10/31 @ EOF2019

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ϦΫϧʔτςΫϊϩδʔζ ITEຊ෦HRE෦ASG ݹ઒ཅհʢϑϧΧϫϤ΢εέʣ 2 ■໾৬ ࣗݾ঺հ Application Solution GroupͷάϧʔϓϚωʔδϟ γχΞιϑτ΢ΣΞΤϯδχΞ ͓ࣸਅ ໌Δ͍ද৘ͷ΋ͷ ϓϥΠϕʔτ΋Մ ■GMͱͯ͠΍ͬͯΔ͜ͱ ϝϯόʔͷΩϟϦΞ։ൃ ϓϩδΣΫτΞαΠϯ શࣾݚमɾR-ISUCONɾϋοΧιϯͳͲ ■γχΞͱͯ͠΍ͬͯΔ͜ͱ R&D - React/Redux/Node.jsΛ࢖ͬͨϘΠϥʔϓϨʔτ - Consumer Driven Contract πʔϧ agreed࡞੒ - ৽نٕज़։ൃ

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Twitter: @yosuke_furukawa Github: yosuke-furukawa

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+4$POG+1 UJDLFUͦΖͦΖϚδ ͰചΓ੾Ε·͢ʂʂʂ

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Q.   ϦΫϧʔτςΫϊϩδʔζͬ ͯԿ΍ͬͯΔձࣾͳΜͰ͢ ͔ʁ

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A. ϦΫϧʔτͷࣾ಺՝୊Λ  ٕज़Ͱղܾ͢Δձࣾ

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ͲΜͳ͜ͱΛ΍ͬͯΔ͔ʁ • Πϯϑϥߏங • ηΩϡϦςΟ૬ஊ • ΞϓϦέʔγϣϯ։ൃ • ػցֶश/෼ੳ • ։ൃϓϩηε࡞੒ • ׂͱͳΜͰ΋΍ͬͯΔ

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ͲΜͳ͜ͱΛ΍ͬͯΔ͔ʁ • Πϯϑϥߏங • ηΩϡϦςΟ૬ஊ • ΞϓϦέʔγϣϯ։ൃ • ػցֶश/෼ੳ • ։ൃϓϩηε࡞੒ • ׂͱͳΜͰ΋΍ͬͯΔ "4(͕ओʹ୲౰ ΢Σϒൺ཰ߴ͍

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ʮΞϓϦέʔγϣϯ։ൃʯ ͱݴͬͯ΋ࠓ͸UI͕ͲΜͲΜ Ϧονʹͳ͍ͬͯΔ࣌୅

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ΞϓϦέʔγϣϯͷUIͷཁ͕݅ Ϧονʹ • UI͸Ϣʔβʔ͕৮Δͱ͜ΖͳͷͰʮϓϥϯφʔɾϓϩμΫτΦʔ φʔͷࢥ͍ʯ͕ೖΓ΍͍͢ • ϞόΠϧɺλϒϨοτɺPCͳͲෳ਺ͷ؀ڥͰಈ࡞ͤ͞Δཁ͕݅૿ ͑ͨ • ϞόΠϧʹ͓͍ͯ͸UI͸γϯϓϧ͕ͩɺೖྗͰ͖Δࣄ͕গͳ͍ ෼ɺཁ݅͸ϦονʹͳΓ΍͍͢ • ύϑΥʔϚϯε΍SEOɺηΩϡϦςΟͳͲඇػೳཁ݅Ͱߟ͑ͳ͍ ͱ͍͚ͳ͍͜ͱ΋૿͍͑ͯΔ

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Ұੲલ͸

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HTML CSS JS(jQuery) ΢ΣϒΛߏ੒͢Δݴޠ ͜ͷลΓͷ͋Δఔ౓ͷ஌͕ࣝ͋Ε͹ 6*͸࡞Εͨ

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Ͱ΋ࠓ͸

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DOM Cookie DevTools ϒϥ΢βΛߏ੒͢Δ಺༰ CSSOM window navigator Headers

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DNS URL HTTP(S) ωοτϫʔΫ WebSocket TCP TLS HTTP/3 QUIC

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Cache Critical- Rendering Path Metrics Tools ύϑΥʔϚϯε Memory CPU I/O

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XSS CSRF SQL Injection ηΩϡϦςΟ DoS TLS/SSL

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React Angular Redux JS Frameworks Vue.js Polymer

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Mobile Tablet PC Runtime Environment Chrome Safari Firefox IE Edge

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HTML CSS JS DOM Cookie DevTools CSSOM window navigator Headers DNS URL HTTP(S) WebSocket TCP TLS React Redux Memory CPU I/O DoS TLS/SSL

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େมͰ͢Ͷ

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Ͱ΋ɺ͜Ε͕(ϦΫϧʔτͷ)  ΢ΣϒΤϯδχΞ  ʹͳΔɺͱ͍͏͜ͱ

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΢Σϒͷϑϩϯτ͚ͩͰ͜Ε ͚ͩͷ஌͕ࣝඞཁɺόοΫΤ ϯυ΋ؚΊΔͱ΄΅ແݶͷ࣌ ͕ؒඞཁ

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ແݶͷதͰ༗ݶͷॲཧΛ͢Δ ͷʹඞཁͳͷ͸ϚϯύϫʔͰ ղܾ͢ΔͷͰ͸ͳ͘ɺ ଉΛٵ͏Α͏ʹֶश͢Δ  Ϟνϕʔγϣϯ

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ͦΜͳંʹग़ձͬͨຊ

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ֶश͢Δ૊৫ • ʮֶश͢Δʯͱ͸ʮੜ͖Δ͜ͱͱಉٛʯͱݴ ͍੾ͬͨຊ • ʮଉΛٵ͏Α͏ʹֶश͢Δʯͱ͍͏ࣄΛࢥͬ ͍ͯͨࣗ෼ͷߟ͑ํͱϚονͨ͠ • த਎ΛΑ͘ಡΉͱ͍͍ࣄ͕ͨ͘͞Μॻ͍ͯ͋ Δɻ

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ֶश͢Δ૊৫ • 5ͭͷσΟγϓϦϯ • 1. ࣗݾϚελϦʔ • 2. ڞ༗Ϗδϣϯ • 3. γεςϜࢥߟ • 4. ϝϯλϧϞσϧ • 5. νʔϜֶश

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ֶश͢Δ૊৫ • 5ͭͷσΟγϓϦϯ • 1. ࣗݾϚελϦʔ • 2. ڞ༗Ϗδϣϯ • 3. γεςϜࢥߟ • 4. ϝϯλϧϞσϧ • 5. νʔϜֶश ख़ୡ͢Δࣄɺઈ͑ͣ౒ྗͯ͠ೳྗΛߴΊΔ͜ͱ ੒͠਱͛ΔϏδϣϯΛෳ਺ͷਓʹڞ༗͢Δ͜ͱ ੈͷதͷγεςϜͷෳࡶ͞ʹ޲͖߹͍ɺཧղΛ ਂΊΔ͜ͱ ࣗ෼ͷ΍ΓํΛ͍ٙଓ͚ɺվળΛଓ͚Δ ͜ΕΒΛνʔϜͰڞ༗͠ɺΈΜͳͰߟ࡯ɺ୳ٻΛ ߦ͍ɺ಺ল͍ͯ͘͠

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͜ΕΛࣗ෼ͳΓʹղऍͯ͠ɺ ࢼߦࡨޡ͠ͳ͕Β ৭ʑࢼ͍ͯ͠Δ࠷த ڞ༗ϏδϣϯɺࣗݾϚελϦʔɺνʔϜֶशʹ͍ͭͯ঺հ

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ڞ༗Ϗδϣϯ

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ϏδϣϯΛग़ͯ͠ڞ༗͢Δ͜ ͱ

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๻͕ݴ͍ଓ͚ͯͨ͜ͱɿ ਖ਼͍͠΋ͷΛਖ਼͘͠࡞Δ

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ਖ਼͠͞ʹ͸2࣠͋Δ validation ͱ veriﬁcation

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validation => value ͔Βདྷͯ Δ value ͭ·ΓՁ஋͕͋Δ͜ͱ

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veriﬁcation => very ͔Β͖ ͯΔ very ͸ "ͱͯ΋" Ͱ͸ͳ͘ ʮਖ਼͘͠ʯͱ͍͏ҙຯ ਖ਼͋͘͠Δ΂͖͔࢟Ͳ͏͔Λ ࢦ͢

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͜Εཱ͕྆͢Δঢ়ଶ͕ཧ૝ͷ ঢ়ଶɺՁ஋͕͋Δ͜ͱΛਖ਼͠ ͋͘Δ΂͖࢟Ͱ࡞Δ͜ͱ

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ྫ͑͹: ച্΋্͛ͭͭɺςε τ΍ϨϏϡʔΛͯ͠੡඼ͷΫ ΦϦςΟ΋อͭɺͦΜͳঢ়ଶ

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Ұݟໃ६ͯ͠ΔΑ͏͕ͩɺ ͜ΕΛཱ྆ͤ͞Δͷ͕ٕज़ྗ ͩͱ͍͏࿩Λͯ͠ϝϯόʔΛ ಋ͍ͯΔɻ

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ͳͷͰϝϯόʔʹ͸ʮৗʹٕ ज़ྗͷݚᮎΛͭͭ͠ɺ͋͘· ͰϏδωεϑΝʔετͰ΍ Δʯͱ͍͏͜ͱΛҙࣝͤͯ͞ ͍Δɻ

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ࣗݾϚελϦʔ

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ࣗ෼͕ݚᮎΛ͢Δ͜ͱ ͔͠͠ɺݚᮎͯ͠΋ଞऀ͔Β ݟΔͱ෼͔Γʹ͍͘

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ࣗ෼͕ݚᮎΛ͢Δ͜ͱ ͔͠͠ɺݚᮎͯ͠΋ଞऀ͔Β ݟΔͱ෼͔Γʹ͍͘ ීஈ͔ΒΞ΢τϓοτΛ৺͕͚ΔΑ ͏ʹ࢓૊ΈͰղܾ

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ଉΛు͍ͨΒٵΘͳ͍ͱ͍͚ ͳ͘ͳΔ Ξ΢τϓοτ͢ΔͱΠϯϓο τ͠ͳ͍ͱ͍͚ͳ͘ͳΔ

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ྫ: ࣾ಺ϒϩά, Demo Day

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ຖिάϧʔϓձͰຖճ࡞ͬͨ ΋ͷΛσϞͤͯ͞Δɻ LTΈ͍ͨʹԿͰ΋ྑ͍͔Βຖ ि࡞ͬͨ΋ͷΛ঺հ͢ΔΑ͏ ʹ͍ͯ͠Δɻ

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݁Ռͱͯ͠ • ϝϯόʔ͔ΒͷΞ΢τϓοτ͕૿͑ͨʢ΋ͪΖ Μʣ • ͦΕ͚ͩ͡Όͳͯ͘Gձͷؔ৺͕ߴ͘ͳͬͨɻ • ਐḿใࠂͰ͸ԼΛ޲͍ͯΔϝϯόʔ΋ը໘ΛݟΔ Α͏ʹͳͬͨɻ • άϧʔϓձ͕ᮣୡʹͳͬͨɻ

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νʔϜֶश

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νʔϜͰݚᮎ͢Δ

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΍ͬͯΔ͜ͱ: ࣾ಺ISUCON, εϐʔυϋοΧ ιϯ

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R-ISUCON ✕

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R-ISUCON ϦΫϧʔτͳΓͷ໰୊Λ࡞ͬͯϦΫϧʔτͳΓ ͷύϑΥʔϚϯε໰୊Λղ͘ ✕

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R-ISUCONୈҰճ໨ͷ໰୊ • ϦΫϧʔτͰΑ͋͘Δձٞࣨ༧໿γεςϜ

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R-ISUCONୈҰճ໨ͷ໰୊ • ϦΫϧʔτͰΑ͋͘Δձٞࣨ༧໿γεςϜ • ϦΫϧʔτͰ͸ձ͕ٞࣨ1Q͔ͣͭ͠औΕͣɺ ͔͠΋ΫΦʔλʔͷ։࢝೔ʹෛՙ͕ूத͢Δ • ෛՙ͕ूதͨ݁͠Ռࢮ͵

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R-ISUCONୈҰճ໨ͷ໰୊ • ϦΫϧʔτͰΑ͋͘Δձٞࣨ༧໿γεςϜ • ϦΫϧʔτͰ͸ձ͕ٞࣨ1Q͔ͣͭ͠औΕͣɺ ͔͠΋ΫΦʔλʔͷ։࢝೔ʹෛՙ͕ूத͢Δ • ෛՙ͕ूதͨ݁͠Ռࢮ͵ ϦΫϧʔτͬΆ͍ɻɻɻ

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R-ISUCONୈҰճ໨ͷ໰୊ • ຊՈISUCONͱ͸ҧͬͯϑϩϯτΤϯυνϡʔ χϯάͷཁૉ΋ೖΕͨ • CSS/JSΛ͋͑ͯॏͨ͘͠Γɻ • ΩϟογϡΛޮ͔ͤͨΓɺը૾ѹॖͨ͠Γ͠ ͳ͍ͱείΞ͕ग़ͳ͍Α͏ʹͨ͠ɻ

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R-ISUCON΍ͬͯΈͯ • ύϑΥʔϚϯε্ɺ࣮ࡍʹϦΫϧʔτͰى͖ͨো ֐΍໰୊Λϕʔεʹຖճ৽͍͠ISUCONͷ໰୊Λ ࡞͍ͬͯΔɻ • ڭҭతͳଆ໘΋ڧ͍͕ɺো֐ৼΓฦΓతͳଆ໘΋ ڧ͍ɻ • ϦΫϧʔτશମͰ࣮ࢪ͢Δ͜ͱͰϦΫϧʔτશମ ͷαʔϏε͕Α͘ͳΔ͜ͱΛૂ͍ͬͯΔɻ

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R-ISUCON΍ͬͯΈͯ • ύϑΥʔϚϯε্ɺ࣮ࡍʹϦΫϧʔτͰى͖ͨো ֐΍໰୊Λϕʔεʹຖճ৽͍͠ISUCONͷ໰୊Λ ࡞͍ͬͯΔɻ • ڭҭతͳଆ໘΋ڧ͍͕ɺো֐ৼΓฦΓతͳଆ໘΋ ڧ͍ɻ • ϦΫϧʔτશମͰ࣮ࢪ͢Δ͜ͱͰϦΫϧʔτશମ ͷαʔϏε͕Α͘ͳΔ͜ͱΛૂ͍ͬͯΔɻ ϦΫϧʔτͷαʔϏεΛྑ͘͢Ε͹೔ຊͷ 8FCશମͷ͏ͪ਺͕ྑ͘ͳΔɻ

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εϐʔυϋοΧιϯ • Ծ૝ͷαʔϏεͰ͸ͳ͘ɺ࣮ࡍͷϖʔδΛج ʹϑϩϯτΤϯυ͚ͩͰͲ͜·Ͱߴ଎ԽͰ͖ Δ͔Λߦ͏ɻ

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εϐʔυϋοΧιϯ • ࣮ࡍͷαʔϏεͰ͸੍໿΋ଟ͍͔Β΍Εͳ͍͜ͱ ΋ଟ͍ • ͔͠͠ɺ੍໿Λ֎ͨ͠ঢ়ଶͰͲ͜·Ͱܰ͘ͳΔ ͔ɺͲ͜·ͰLook & Feel͕มΘΔ͔Λ·ͣ͸ମݧ ͤͯ͋͛͞Δ • ͜ΕʹΑͬͯɺ࠷ऴΰʔϧΛݟਾ͑ͨঢ়ଶͰվળ ׆ಈ͕Ͱ͖Δ

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εϐʔυϋοΧιϯ • ࣮ࡍͷαʔϏεͰ͸੍໿΋ଟ͍͔Β΍Εͳ͍͜ͱ ΋ଟ͍ • ͔͠͠ɺ੍໿Λ֎ͨ͠ঢ়ଶͰͲ͜·Ͱܰ͘ͳΔ ͔ɺͲ͜·ͰLook & Feel͕มΘΔ͔Λ·ͣ͸ମݧ ͤͯ͋͛͞Δ • ͜ΕʹΑͬͯɺ࠷ऴΰʔϧΛݟਾ͑ͨঢ়ଶͰվળ ׆ಈ͕Ͱ͖Δ μΠΤοτͱҰॹͰ࠷ॳʹཧ૝ͷ࢟ΛΠϝʔδͰ͖ ΔΑ͏ʹ͔ͯ͠Βվળ͢Δͱΰʔϧ͠΍͍͢

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εϐʔυϋοΧιϯ • ࣮ࡍʹόΠτݕࡧΞϓϦ΍௞ି෺݅ݕࡧΞϓ ϦͰ΋ޮՌ͕ग़͍ͯΔɻ •

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ଞʹ΋

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PIGICON • Programming and Intelligence: Greatest Improvement CONtest • ػցֶश x ISUCON • Ԡ౴ੑೳͱֶशਫ਼౓྆ํΛڝ͏ίϯςετ

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PIGICON • Ϣʔβʔʹ࣭໰ͯ͠ɺͦͷ಺༰ΛجʹϢʔβʔ ͕ߟ͑ͯΔ΋ͷΛਪଌ͢Δ • ࣭໰ճ਺͕গͳ͚Ε͹গͳ͍΄ͲείΞ͸ߴ͍ • ͨͩؒ͠ҧ͍Λ௚͢ʹ͸໰͍߹Θ͕ͤଟ͘ͳΔ • Ԡ౴ੑೳΛ͋͛Α͏ͱੑೳΛ্͛Δͱࠓ౓͸ਫ਼ ౓͕௿͘ͳΔ

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IMOCON • Iikanji ni MOdel CONtest • Kaggle Έ͍ͨͳػցֶशͷਫ਼౓ͷΈΛڝ͏ί ϯςετ • ·ͩ͜Ε͔Β΍ΔίϯςετͳͷͰৄࡉ͸໌ ͔͞Εͯͳ͍ɻ

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৭ʑ૿͖͑ͯͨ

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ϋοΧιϯܗࣜͰΠϕϯτʹ͠ ͯ੝Γ্͛Δ • ΈΜͳʹֶΜͰ΄͍͜͠ͱ͸ίϯςετܗࣜʹͯ͠ʢ xxxCON Λ࡞ͬͯʣ։࠵ͱ͍͏ྲྀΕ͕૿͑ͨɻ • ݁Ռͱͯ͠৭ΜͳόϥΤςΟͷڝٕ͕૿͑ͯɺΈΜͳҰ૚ڝٕΛ ͢ΔΑ͏ʹͳͬͨɻ • ࣗൃతʹֶश͍ͯ͘͠૊৫ʹͳ͖ͬͯͨɻ • ࣮ࡍͷΞϓϦέʔγϣϯʹ΋׆͔ͤΔΑ͏ʹͳ͖ͬͯͨɻ   

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ৼΓฦͬͯ

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ৼΓฦͬͯ • ࣗ෼ͳΓͷϚωδϝϯτελΠϧΛ௥ٻͨ݁͠Ռɺ΄΅Τ ϯδχΞίϛϡχςΟͷษڧձͷελΠϧͱҰॹͩͬͨࣄ ʹؾ͍ͮͨ • ཁ͸େࣄͳ͜ͱ͸ษڧձ͔ΒֶΜͩɻ • σϞσΠͰৗʹଉΛు͔ͤΔͷ͸ษڧձͷొஃͷϚω͝ͱ • ϋοΧιϯͰ୹ظؒʹνʔϜͰֶश͢Δͱ͔΋΋ΖΤϯδ χΞίϛϡχςΟͷ΍Γํ

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ৼΓฦͬͯ • ࣗ෼ͳΓͷϚωδϝϯτελΠϧΛ௥ٻͨ݁͠Ռɺ΄΅Τ ϯδχΞίϛϡχςΟͷษڧձͷελΠϧͱҰॹͩͬͨࣄ ʹؾ͍ͮͨ • ཁ͸େࣄͳ͜ͱ͸ษڧձ͔ΒֶΜͩɻ • σϞσΠͰৗʹଉΛు͔ͤΔͷ͸ษڧձͷొஃͷϚω͝ͱ • ϋοΧιϯͰ୹ظؒʹνʔϜͰֶश͢Δͱ͔΋΋ΖΤϯδ χΞίϛϡχςΟͷ΍Γํ ͣʔͬͱ΍͖ͬͯͨΤϯδχΞίϛϡχςΟͰ ΍͖ͬͯͨ͜ͱΛࣾ಺Ͱద༻ͨ͠ɻ݁Ռɺࠓ͸ Ұఆͷ੒Ռ͕ग़ͯΔɻ

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ֶश͢Δ૊৫Λ࡞Δͷʹ৺͕͚ ͯΔ͜ͱ • ࣗ෼ͳΓͷڞ༗ϏδϣϯΛݴ͏ʮਖ਼͍͠΋ͷΛਖ਼͘͠࡞Δʯ • ͦͷ্Ͱϝϯόʔʹ͸ࣗݾݚᮎͱͱ΋ʹɺDemo Day΍ࣾ಺ ϒϩάͳͲৗʹൃ৴ͤ͞Δ࢓૊ΈΛ࡞Δ  ʮৗʹଉΛు͔ͤͯٵΘͳ͍ͱ͍͚ͳ͘͢Δʯ • ϋοΧιϯ΍ISUCONͳͲͷऔΓ૊ΈΛੵۃతʹ౪Έɺੵۃ తʹࢼ͢ɻʮνʔϜֶशͰେࣄͳ͜ͱ͸ΤϯδχΞίϛϡχ ςΟ͔ΒֶΜͩɻʯ