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-JHIUCFOE"DBEFNZ ΦϯϥΠϯτϨʔχϯάΛड͚ͯΈͨ ϦΞΫςΟϒϚΠΫϩαʔϏεͷཧ࿦ฤ @crossroad0201 4DBMBؔ੢ษڧձ 1

© Chatwork ໨࣍ -JHIUCFOE"DBEFNZͱ͸ ͭͷτϨʔχϯάύε डߨͷίπ
͜͜·Ͱडߨֶͯ͠Μͩ͜ͱ ͳ͓ɺ͜ͷεϥΠυʹ͸Scalaͷ࿩͸͍͍ͬ͞ग़͖ͯ·ͤΜ... 3

-JHIUCFOE"DBEFNZͱ͸ 4

© Chatwork -JHIUCFOE"DBEFNZͱ͸ w "LLBͰ஌ΒΕΔ-JHIUCFOE͕ࣾఏڙ͍ͯ͠Δ ΦϯϥΠϯτϨʔχϯάϓϩάϥϜɻ w ಉࣾͷΤϯλʔϓϥΠζ޲͚༗ঈαʔϏεͰ͋Δ ʮ-JHIUCFOE4VCTDSJQUJPOʯͰఏڙ͞ΕΔϓϩάϥϜͷதͷͻͱͭɻ w
-JHIUCFOE4VCTDSJQUJPOͷ͓஋ஈ͸αΠτʹ͸هࡌ͕ͳ͘ɺ ཁ͓໰͍߹ΘͤͬΆ͍ w ৽ܕίϩφͷӨڹͳͷ͔ɺ·ͰແঈͰडߨͰ͖Δɻ 5

© Chatwork डߨͷಈػ w $IBUXPSLͷ࣍ੈ୅ΞʔΩςΫνϟͰ࠾༻Λݕ౼͍ͯ͠Δٕज़ελο ΫͷΩϟονΞοϓɻ w ݴޠɹɹɹɹɹɿ4DBMB w ϑϨʔϜϫʔΫɿ"LLB
w ΞʔΩςΫνϟɿυϝΠϯۦಈઃܭɺϦΞΫςΟϒϚΠΫϩαʔϏ εɺΠϕϯτιʔγϯάɺ$234 8

ͭͷτϨʔχϯάύε 9

© Chatwork ͭͷτϨʔχϯάύε ֤ίʔε͸೚ҙͷॱʹडߨͰ͖·͕͢ɺ໨తʹ߹ΘͤͯମܥతʹֶशͰ ͖ΔΑ͏ɺͭͷτϨʔχϯάύε͕ఏҊ͞Ε͍ͯ·͢ɻ ΞʔΩςΫνϟ 4DBMBݴޠ
"LLBϚΠΫϩαʔϏε -PHPNϚΠΫϩαʔϏε σʔλΤϯδχΞϦϯά 10

© Chatwork ΞʔΩςΫνϟ ϦΞΫςΟϒϚΠΫϩαʔϏεΛ։ൃ͢ΔͨΊͷཧ࿦Λֶͼ·͢ɻ *OUSPEVDUJPOUP3FBDUJWF %PNBJO%SJWFO%FTJHO 3FBDUJWF.JDSPTFSWJDFT
#VJMEJOH4DBMBCMF4ZTUFNT %JTUSJCVUFE.FTTBHJOH1BUUFSOT $234&WFOU4PVSDJOH 11

© Chatwork "LLBϚΠΫϩαʔϏε "LLBΞΫλʔͷ࢖͍ํ͔ΒΫϥελͷ૊Έํɺӡ༻؂ࢹͳͲɺ"LLBΞ ϓϦέʔγϣϯΛ։ൃ͠ӡ༻͢ΔͨΊͷ஌ࣝΛֶͼ·͢ɻ -JHIUCFOE5FMFNFUSZ*OTUBMMBUJPO "LLBGPS4DBMB1SPGFTTJPOBM
"LLB$MVTUFS'VOEBNFOUBMT "LLB$MVTUFS4IBSEJOH 4DBMB "LLB$MVTUFS4IBSEJOH +BWB "LLB4USFBNTGPS4DBMB1SPGFTTJPOBM "LLB4USFBNTGPS+BWB1SPGFTTJPOBM 13

© Chatwork -PHPNϚΠΫϩαʔϏε -PHPNϚΠΫϩαʔϏεϑϨʔϜϫʔΫͷॳาʹֶ͍ͭͯͼ·͢ɻ +BWB-BOHVBHF-BNCEBT +BWB-BOHVBHF'VUVSFT -PHPNGPS+BWB)FMMP8PSME
"LLB$MVTUFS'VOEBNFOUBMT GPS-PHPN$MVTUFSJOH 14

डߨͷίπ 16

© Chatwork डߨͷίπ ӳޠ͕ฉ͖औΕͳ͍৔߹͸ɺ͜͜ͷจࣈ ى͜͠Λ%FFQ-Ͱ຋༁͢Δʢসʣ ͨͩ͠ɺจͷ్தͰվߦ͞Εͯ͠·ͬͯ ͍ΔͷͰߦʹ੒ܗ͢ΔඞཁΞϦɻ ͨͿΜɺಈըΛ࠷ޙ·Ͱݟ͔ͨΛه࿥͞ Εͯͦ͏ɻ จࣈى͜͠ͷ࠷ޙͷจΛΫϦοΫ͢Δ
ͱָͰ͖·͢ɻ ղઆͷޙͷ֬ೝ໰୊Ͱɺͨ·ʹهड़ࣜͷ ໰୊͕͋ΔͷͰɺओͳݻ༗໊ࢺʢӳ୯ ޠʣ͸ϝϞ͓ͬͯ͘ํ͕ແ೉Ͱ͢ɻ 17

͜͜·Ͱडߨֶͯ͠Μͩ͜ͱ 18

© Chatwork ΞʔΩςΫνϟ *OUSPEVDUJPOUP3FBDUJWF %PNBJO%SJWFO%FTJHO 3FBDUJWF.JDSPTFSWJDFT
#VJMEJOH4DBMBCMF4ZTUFNT %JTUSJCVUFE.FTTBHJOH1BUUFSOT $234&WFOU4PVSDJOH 4DBMBݴޠ 4DBMB-BOHVBHF1SPGFTTJPOBM "LLBϚΠΫϩαʔϏε -JHIUCFOE5FMFNFUSZ*OTUBMMBUJPO "LLBGPS4DBMB1SPGFTTJPOBM "LLB$MVTUFS'VOEBNFOUBMT "LLB$MVTUFS4IBSEJOH 4DBMB "LLB4USFBNTGPS4DBMB1SPGFTTJPOBM डߨ͍ͨ͠ίʔε ݟੵΓɿ6࣌ؒ/ίʔε * 12ίʔε = 72࣌ؒ 19

© Chatwork ΞʔΩςΫνϟ *OUSPEVDUJPOUP3FBDUJWF %PNBJO%SJWFO%FTJHO 3FBDUJWF.JDSPTFSWJDFT
#VJMEJOH4DBMBCMF4ZTUFNT %JTUSJCVUFE.FTTBHJOH1BUUFSOT $234&WFOU4PVSDJOH 4DBMBݴޠ 4DBMB-BOHVBHF1SPGFTTJPOBM "LLBϚΠΫϩαʔϏε -JHIUCFOE5FMFNFUSZ*OTUBMMBUJPO "LLBGPS4DBMB1SPGFTTJPOBM "LLB$MVTUFS'VOEBNFOUBMT "LLB$MVTUFS4IBSEJOH 4DBMB "LLB4USFBNTGPS4DBMB1SPGFTTJPOBM ਐ௙ ͍͍ͩͨि1ϖʔεɻಓͷΓ͸௕͍... 20

© Chatwork ΞʔΩςΫνϟ*OUSPEVDUJPOUP3FBDUJWF ̍ɽͳͥϦΞΫςΟϒͳͷ͔ʁ w ࣾձ׆ಈʹ͓͍ͯɺιϑτ΢ΣΞ͕Ռͨ͢໾ׂ͸େ͖͘ͳΔҰํɻ w ඞཁͳͱ͖ʹར༻Ͱ͖ͳ͚Ε͹ɺϢʔβʔ͸͙͢ʹ୅ସɾڝ߹ʹ৐ Γ׵͑ͯ͠·͏ɻ w
ো֐Ͱશମ͕ఀࢭɺϝϯςφϯεͰ࢖͑ͳ͍͸΋͏ڐ͞Εͳ͍ɻ w ϦΞΫςΟϒΞʔΩςΫνϟ͕ղܾ͍ͨ͠՝୊͸ɺٕज़తͳ՝୊Ͱ ͸ͳ͘ɺ͜ͷΑ͏ͳιϑτ΢ΣΞʹର͢Δظ଴ͷมԽͰ͋Δɻ 23

© Chatwork ΞʔΩςΫνϟ*OUSPEVDUJPOUP3FBDUJWF ̎ɽϦΞΫςΟϒΞʔΩςΫνϟͷݪଇ w ଈԠੑ 3FTQPOTJWF ৗʹԠ౴Λฦ͢ w ஄ྗੑ
&MBTUJD ෛՙʹԠͨ͡εέʔϧΞοϓʗμ΢ϯ w ଱ো֐ੑ 3FTJMJFOU ো֐͕ൃੜͯ͠΋ճ෮͢Δ w ϝοηʔδۦಈ .FTTBHF%SJWFO ඇಉظɾϊϯϒϩοΩϯά ग़యɿϦΞΫςΟϒએݴ https://www.reactivemanifesto.org/ja ͢΂ͯ͸ଈԠੑͷͨΊɻ ৗʹԠ౴Λฦ͢͜ͱ͕Ϣʔβʔͷ৴པʹͭͳ͕Δɻ 24

© Chatwork ΞʔΩςΫνϟ*OUSPEVDUJPOUP3FBDUJWF ̏ɽϦΞΫςΟϒΞʔΩςΫνϟͱϦΞΫςΟϒϓϩάϥϛϯάͷҧ͍ w ϦΞΫςΟϒΞʔΩςΫνϟ͸ɺγεςϜ͕ϦΞΫςΟϒݪଇΛຬ ͨͨ͢Ίͷํ๏࿦ɻ w ϦΞΫςΟϒϓϩάϥϛϯά͸ɺϦΞΫςΟϒΞʔΩςΫνϟΛޮ ཰తʹ࣮ݱ͢Δखஈͷͻͱͭɻ
w ϦΞΫςΟϒϓϩάϥϛϯά͔ͨ͠Βͱ͍ͬͯɺϦΞΫςΟϒͳγ εςϜʹͳΔΘ͚Ͱ͸ͳ͍ɻ 25

© Chatwork ΞʔΩςΫνϟ*OUSPEVDUJPOUP3FBDUJWF w "LLB͕ϕʔεͱ͢ΔΞΫλʔγεςϜ͸ɺϦΞΫςΟϒΞʔΩςΫ νϟͱϦΞΫςΟϒϓϩάϥϛϯάΛγʔϜϨεʹͭͳ͙͜ͱ͕Ͱ ͖ΔύϥμΠϜɻ w ϦΞΫςΟϒγεςϜΛߏங͢ΔͨΊʹΞΫλʔϞσϧ͸ඞਢͰ͸ ͳ͍͕ɺ͞·͟·ͳύϥμΠϜΛ૊Έ߹Θͤͯ࢖͏ΑΓ΋ɺΞΫ
λʔϞσϧΛ࢖͏΄͏ָ͕ɻ 26

© Chatwork ΞʔΩςΫνϟ%PNBJO%SJWFO%FTJHO υϝΠϯۦಈઃܭ %%% ͱϦΞΫςΟϒΞʔΩςΫνϟ υϝΠϯͷ෼ׂͱϚΠΫϩαʔϏε
%%%ʹΑΔϚΠΫϩαʔϏεͷઃܭͱ࣮૷ 28

© Chatwork ΞʔΩςΫνϟ%PNBJO%SJWFO%FTJHO ̍ɽυϝΠϯۦಈઃܭ %%% ͱϦΞΫςΟϒΞʔΩςΫνϟ w %%%ͷߟ͑ํ΍نଇ͸ɺϦΞΫςΟϒΞʔΩςΫνϟͱ਌࿨ੑ͕ߴ ͍ɻ w
େ͖ͳυϝΠϯΛɺϢʔβʔʗϏδωεͷࢹ఺͔ΒҰ؏ੑͷ͋Δ୯ Ґʹ෼ׂ͢Δ͜ͱ͸ɺϦΞΫςΟϒཁ݅Λຬͨͨ͢Ίʹ΋ඞཁͳ޻ ఔͰ͋Δɻ 29

© Chatwork ΞʔΩςΫνϟ%PNBJO%SJWFO%FTJHO ̎ɽυϝΠϯͷ෼ׂͱϚΠΫϩαʔϏε w ϚΠΫϩαʔϏεͷ෼ׂ୯ҐΛܾΊΔͨΊʹɺ%%%ͷʮڥք෇͚Β ΕͨίϯςΩετʯΛ࢖͏ɻ w ϚΠΫϩαʔϏεڥք෇͚ΒΕͨίϯςΩετPS/ w
υϝΠϯΛ෼ׂ͢Δܾ·ͬͨखॱ͸ͳ͍͕ɺϢʔβʔͷจԽͷมΘ Γ໨΍૬ޓ࡞༻ʹண໨͢Δɻ w ࠷ۙ͸ΠϕϯτϑΝʔετͳ%%%͕஫໨͞Εͭͭ͋Δɻ 30

© Chatwork ΞʔΩςΫνϟ%PNBJO%SJWFO%FTJHO ̏ɽ%%%ʹΑΔϚΠΫϩαʔϏεͷઃܭͱ࣮૷ w ͭͷΞΫςΟϏςΟΛநग़͠ɺඇಉظϝοηʔδϯάͰ૬ޓ࡞༻ ͢Δɻ ɹίϚϯυɿঢ়ଶΛมԽͤ͞Δཁٻɻಛఆͷ૬खʹૹ৴ɻ ɹΫΤϦɹɿ৘ใΛऔಘ͢Δཁٻɻঢ়ଶ͸มԽ͠ͳ͍ɻ ɹΠϕϯτɿঢ়ଶ͕มԽͨ͜͠ͱͷه࿥ɻෆಛఆଟ਺ʹ഑৴ɻ
w %%%ͷʮू໿ϧʔτʯ͕ΞΫλʔͷީิʹͳΔɻ 31

© Chatwork ΞʔΩςΫνϟ3FBDUJWF.JDSPTFSWJDFT ̍ɽϞϊϦεͱ40"ͱϚΠΫϩαʔϏε w ͲͪΒ͕ྑ͍ѱ͍Ͱ͸ͳ͘ɺ1SPT$POTΛཧղͯ͠࢖͍෼͚Δɻ w ϞϊϦε͸஄ྗੑ͕ͳ͍ͷͰΧεέʔυނোΛىͯ͜͠͠·͏ɻ w 40"ͱϚΠΫϩαʔϏεͷҧ͍͸σϓϩΠͷཁٻɻ
40"Ͱ͸αʔϏεͱσϓϩΠͷ୯Ґ͕ಉ͡Ͱͳͯ͘΋ྑ͍ɻ w ϚΠΫϩαʔϏε͸ɺ୯Ұ੹຿ͷݪଇʹैͬͯͦΕΛมߋ͢Δཧ༝ Λ͚̍ͭͩ࣋ͭΑ͏ʹ෼ׂ͢Δ΂͖ɻ 34

© Chatwork ΞʔΩςΫνϟ3FBDUJWF.JDSPTFSWJDFT ̎ɽϦΞΫςΟϒϚΠΫϩαʔϏεͷಛ௃ w ϚΠΫϩαʔϏεؒͷ௨৴͸ɺϦΞΫςΟϒγεςϜʹ͓͍ͯ͸ݪ ଇɺඇಉظɾϊϯϒϩοΩϯάʹ͢Δɻ w ͭͷ؍఺ͰϚΠΫϩαʔϏεΛִ཭Ͱ͖ΔΑ͏ʹ෼ׂ͢Δɻ ঢ়ଶɿαʔϏε͕࣋ͭঢ়ଶ΁ͷΞΫηε͸"1*ͰͷΈެ։͢Δɻ
ۭؒɿαʔϏε͸ޓ͍ʹͲ͜ʹσϓϩΠ͞Ε͍ͯΔ͔஌Βͳ͍ɻ ࣌ؒɿଞͷαʔϏεͷॲཧΛ଴ͨͳ͍ɻ ো֐ɿଞͷαʔϏεͷো֐ͷӨڹΛड͚ͳ͍ɻ 35

© Chatwork ΞʔΩςΫνϟ3FBDUJWF.JDSPTFSWJDFT ̏ɽϚΠΫϩαʔϏεΛͲ͏΍ͬͯϦΞΫςΟϒʹ͢Δ͔ w αʔΩοτϒϨʔΧͰɺΧεέʔυނোΛආ͚Δɻ w ϝοηʔδۦಈͰɺඇಉظɾϊϯϒϩοΩϯάʹ௨৴͢Δɻ w ඞཁͳσʔλͷίϐʔΛ࣋ͭͳͲͯ͠ɺ΄͔ͷαʔϏε͕ނোͯ͠
΋ࣗ཯తʹػೳΛఏڙʢ੍໿෇͖Ͱ΋ʣͰ͖ΔΑ͏ʹ͢Δɻ w ήʔτ΢ΣΠαʔϏεͰɺΫϥΠΞϯτ͕͢΂ͯͷϚΠΫϩαʔϏ εΛ௚઀஌Βͳͯ͘΋ྑ͍Α͏ʹ͢Δɻ 36

© Chatwork ΞʔΩςΫνϟ#VJMEJOH4DBMBCMF4ZTUFNT ̍ɽҰ؏ੑɺՄ༻ੑɺεέʔϥϏϦςΟ w Ұ؏ੑɿ ɹڧ͍Ұ؏ੑɾɾɾৗʹҰ؏ੑ͕͋Δঢ়ଶ͕อͨΕΔ ɹ݁Ռ੔߹ੑɾɾɾ࠷ऴతʹҰ؏ੑ͕͋Δঢ়ଶʹͳΔ w Մ༻ੑɿ
ɹγεςϜ͕ͲΜͳঢ়ଶͰ΋Ԡ౴Λฦ͢͜ͱ͕Ͱ͖Δ w εέʔϥϏϦςΟɿ ɹԠ౴ੑΛҡ࣋ͨ͠··ཁٻͷ૿ՃʹରԠͰ͖Δ ɹεέʔϥϏϦςΟʹ͸্ݶ͕ͳ͍ w ͪͳΈʹύϑΥʔϚϯεͱεέʔϥϏϦςΟ͸ҧ͏ ɹ݅ͷཁٻΛͲΕ͚ͩ଎͘ॲཧͰ͖Δ͔ ɹύϑΥʔϚϯεʹ͸ݶք͕͋ΔʢͲ͜·Ͱ଎͘ͳͬͯ΋θϩʹ͸ͳΒͳ͍ʣ 39

© Chatwork ΞʔΩςΫνϟ#VJMEJOH4DBMBCMF4ZTUFNT ̎ɽ෼ࢄγεςϜͷεέʔϥϏϦςΟΛ๦͛Δ΋ͷ w Ұ؏ੑΛอͱ͏ͱ͢ΔͱσʔλͷϩοΫ͕ൃੜ͢ΔɻϩοΫ͕Ϙτ ϧωοΫʹͳͬͯεέʔϧͰ͖ͳ͍ɻʢΞϜμʔϧͷ๏ଇʣ w Մ༻ੑΛอͭͨΊʹσʔλΛෳ੡͢Δͱσʔλؒͷಉظ͕໰୊ʹͳ Δɻ࠷ѱɺಉظͷίετ͕εέʔϧͨ͠ೳྗΛ্ճͬͯ͠·͏ɻ
ʢΨϯβʔͷ๏ଇʣ w $"1ఆཧɻ Ұ؏ੑPSՄ༻ੑͰ͸ͳ͘ɺ྆ऀͷόϥϯεɻ $"1ఆཧ͸࣮༻্ ༗ӹͰ͸ͳ͍ʂ 40

© Chatwork ΞʔΩςΫνϟ#VJMEJOH4DBMBCMF4ZTUFNT ̏ɽҰ؏ੑͱγϟʔσΟϯά w 3%#.4ͳͲͷػೳͰ͸ͳ͘ɺΞϓϦέʔγϣϯઃܭςΫχοΫɻ w σʔλΛ֨ೲ͢ΔثΛ෼ׂ͠ɺث୯ҐͰҰ؏ੑΛอূ͢Δɻ ҧ͏ثͲ͏͠͸ޓ͍ʹϩοΫͷӨڹΛड͚ͳ͍ɻ w
σʔλ͕࣋ͭ*%ʹΑͬͯɺͲͷثʹೖΔ͔͕ܾ·Δɻ ԿΛ*%ͱ͢Δ͔͸ϏδωευϝΠϯͷϧʔϧɾཁ݅ʹΑΔɻ w σʔλ͸ෳ਺ͷثʹ෼ࢄͤͣɺͭͷثͷதʹ͔͠ଘࡏ͠ͳ͍ɻ Αͬͯͦͷث͕յΕΔͱೖ͍ͬͯͨσʔλ͕࢖͑ͳ͘ͳΔɻ w "LLB$MVTUFS4IBSEJOHɻ 41

© Chatwork ΞʔΩςΫνϟ#VJMEJOH4DBMBCMF4ZTUFNT ̐ɽՄ༻ੑͱ$3%5 w $POqJDUGSFF3FQMJDBUFE%BUB5ZQFɻ w ݁Ռ੔߹ੑɻڧ͍Ұ؏ੑ͸ͳ͍ɻ w ॻ͖ࠐ·ΕͨσʔλΛෳ਺ͷϨϓϦΧʹඇಉظʹ൓ө͢Δ͜ͱͰՄ༻ੑΛ
֬อ͢Δɻ w σʔλߏ଄શମ͕ϝϞϦʹ৐Βͳ͍ͱμϝ ࠷৽ͷঢ়ଶΛԋࢉ͢ΔͨΊ ɻ w ߋ৽ස౓͕ߴ͍σʔλʹ͸ෆ޲͖ɻ w "LLB%JTUSJCVUFE%BUBɻಠࣗܕΛఆٛ͢Δ͜ͱ΋Մೳɻ 42

© Chatwork ΞʔΩςΫνϟ#VJMEJOH4DBMBCMF4ZTUFNT ̑ɽҰ؏ੑͱՄ༻ੑͷબ୒ w Ұ؏ੑͱՄ༻ੑ͸τϨʔυΦϑͷؔ܎ʹ͋Δɻ w ೋऀ୒ҰͰ͸ͳ͘ɺ྆ऀͷؒͰͷόϥϯεɻ w ͲͪΒʹൺॏΛஔ͔͘͸ɺϏδωεཁ݅ɻ
w ৗʹ੔߹ੑΛอͨͳ͍ͱ͍͚ͳ͍ɻอͯͳ͍ͳΒαʔϏεΛఀࢭ ͢Δ΂͖ɻ w ଟগ੔߹ੑ͕߹Θͳ͍͕࣌ؒ͋ͬͯ΋ɺαʔϏεΛఏڙ͠ଓ͚Δ ͜ͱͷ΄͏͕ॏཁɻ 43

Lightbend Academyオンライントレーニングを受けてみた

Lightbend Academyオンライントレーニングを受けてみた

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