State of the Union 〜 2018年のアプリ開発事情

ʙ೥ͷΞϓϦ։ൃࣄ৘ʙ !IVJO J04%$+BQBO 4UBUFPGUIF6OJPO

2 ࣗݾ঺հ ,PJDIJ4BLBUB !IVJO IVJONF ɹ೥ J04 ʙ

3 ࣗݾ঺հ ,PJDIJ4BLBUB !IVJO IVJONF ɹ೥ J04 ʙ

ஶ ࡞ ঺ հ 5

6 w J04ΞϓϦ։ൃ̒೥ΞϓϦ։ൃ΋͍Ζ͍ΖมԽ͖ͯͨ͠ w ݴޠ πʔϧ ઃܭʜͲΜͲΜෳࡶʹ w ͔͠΋ ࠷ۙ͸ϚωδϝϯτدΓͰίʔυॻ͕࣌ؒ͘
SZ w Ͱ΋΍ͬͺΓΞϓϦ։ൃͷΩϟονΞοϓ͸͍ͨ͠ ൃදͷϞνϕʔγϣϯ ࠷ۙͷτϐοΫεΛؤுͬͯ੔ཧͯ͠ΈΔ

7 w ࠷ۙͷΞϓϦ։ൃʹ͓͚ΔτϐοΫεΛ੔ཧͯ͠঺հ w ਂ͘ΑΓͳΔ΂͘޿͘ w ϕετϓϥΫςΟεͷ࿩Ͱ͸͋Γ·ͤΜ w ศརͳϥΠϒϥϦͷ࿩Ͱ΋͋Γ·ͤΜ w
ΑΓྑ͍։ൃΛ͢ΔͨΊͷώϯτʹͳΕ͹خ͍͠Ͱ͢ ͜ͷൃදͷΰʔϧ

ʙ೥ͷΞϓϦ։ൃࣄ৘ʙ !IVJO J04%$+BQBO 4UBUFPGUIF6OJPO

9 ݴޠ ґଘੑ؅ཧ λʔήοτߏ੒ ΞʔΩςΫνϟ ࣗಈԽ CI / CD πʔϧ
Ϋϩε ϓϥοτϑΥʔϜ

11 w 88%$Ͱൃද w ೥ʹ͸ΦʔϓϯιʔεԽ w ͓͓Αͦ̍೥ʹ̍౓ͷϖʔεͰϝδϟʔΞοϓσʔτ͍ͯ͠Δ w ಛ௃ w
҆શߴ଎ߴ͍දݱྗ w 4XJGUͰ͔͠J04։ൃͨ͜͠ͱͳ͍ਓ΋ଟ͍ͷͰ͸ʁ 4XJGUͷݱࡏ

12 w ೥݄ւ֎ΤϯδχΞͷ4XJGU൷൑΋࿩୊ʹͳͬͨ w 4XJGUϝδϟʔΞοϓσʔτͰյΕΔޓ׵ੑ w 4XJGUUPͷѱເ w $PNQJMBUJPO.PEFͷ͓͔͛Ͱ4XJGUUP͸ෛ୲ݮ w
Ϗϧυ࣌ؒͱͷઓ͍ w 88%$Ͱηογϣϯ͕ઃ͚ΒΕΔ͘Β͍ʹ͸ؔ৺ࣄ w ϓϩδΣΫτίʔυΛগͣͭ͠վળ͢Δ͔ࡳଋͰԥΔ͔ w ࣌ؒܭଌͱߴ଎Խͷ5JQT͕(JU)VCͰެ։͞Ε͍ͯΔ 4XJGU΁ͷෆຬ

13 w ݱࡏͷόʔδϣϯ4XJGU ळʹ͸4XJGUϦϦʔε༧ఆ w &BSMZʹ͸4XJGU΁ w "#*҆ఆԽ͕࠷େ໨ඪ "#*.BOJGFTUP
"#*%BTICPBSE w όΠφϦͷޓ׵ੑ͕୲อ͞ΕΔͷͰ4XJGUΞοϓσʔτʹک͑ͳͯ͘ྑ͘ͳΔ 4XJGUͷ͜Ε͔Β 88%$8IBU`T/FXJO4XJGUΑΓ

16 w 044ϥΠϒϥϦΛར༻͢ΔͨΊͷπʔϧ w όʔδϣϯΛࢦఆͨ͠Γɺ௥ՃͷґଘੑΛࣗಈͰղܾͯ͘͠ΕΔ w ੲ͸HJUTVCNPEVMFͰόʔδϣϯݻఆͭͭࣗ͠෼ͰϏϧυઃఆΛʜ w J04ΞϓϦ։ൃͰ༗໊ͳґଘੑ؅ཧπʔϧ w
$PDPB1PET w $BSUIBHF w 4XJGU1BDLBHF.BOBHFS 41. ґଘੑ؅ཧ

17 $PDPB1PETWT$BSUIBHF $PDPB1PET $BSUIBHF 1SPT ϓϩδΣΫτͷઃఆ·Ͱ΍ͬͯ͘ΕΔ ࠷΋ීٴͯ͠ΔͷͰରԠϥΠϒϥϦ๛෋ Ϗϧυ࣌ؒʹӨڹ༩͑ͳ͍ ϓϩδΣΫτϑΝΠϧॻ͖׵͑ͳ͍ $POT
ϥΠϒϥϦ͕૿͑ΔͱϏϧυ࣌ؒԆͼΔ ϓϩδΣΫτϑΝΠϧΛॻ͖׵͑Δ ະରԠϥΠϒϥϦଟ͍ ϦϯΫઃఆ͕खಈͰखؒ

18 w ݸਓతʹ͸ϜϦͯ͠$BSUIBHFΛ࢖͏ඞཁ͸ͳ͍ͱ͍͏ߟ͑Ͱ͢ w $PDPB1PET͚ͩͰࡁΉͳΒͦͷ΄͏͕γϯϓϧ w Ϗϧυ࣌ؒͳͲ͕໰୊ʹͳ͖ͬͯͨ࣌ʹ$BSUIBHFʹ੾Γग़͢ w ܦݧతʹ$BSUIBHF͚ͩͰ׬݁͢Δͷ͸೉͍͠ w
྆ऀซ༻ͭͭ͠GBTUMBOFͰϥοϓ͢Δͷ͕ݱ࣮త $PDPB1PETWT$BSUIBHF

21 w 4JSJ΍ϦονϓογϡରԠͰΤΫεςϯγϣϯ௥Ճ͸΋͸΍ඞਢ w ࠷ॳ͔ΒΤΫεςϯγϣϯલఏͷϓϩδΣΫτߏ੒ʹ͓ͯ͘͠ w "1*΍αʔϏεϩδοΫ෦෼ΛผϑϨʔϜϫʔΫͱͯ͠੾Γग़͢ w ϑϨʔϜϫʔΫ෦෼͸6*,JUʹ͸ґଘͤ͞ͳ͍ઃܭ͕େࣄ λʔήοτߏ੒
4BNQMF$PSFGSBNFXPSL 4BNQMF"1*GSBNFXPSL *OUFOUT 5PEBZ 4BNQMF"QQ "QQ$POUBJOFS

22 w XBUDI04ɺUW04ʹՃ͑ͯɺ೥ʹ͸69,JU Ծ ͰNBD04ΞϓϦ΋։ൃՄೳʹʁ w ΫϩεϓϥοτϑΥʔϜରԠ͢Δ৔߹͸ϓϩδΣΫτΛ෼͚ͨ΄͏͕͍͍͔΋ w ϓϥοτϑΥʔϜ͝ͱʹϑϨʔϜϫʔΫλʔήοτ͕ඞཁ w
ඞཁʹͳͬͨͱ͖ʹؤுΓ·͠ΐ͏ λʔήοτߏ੒ʙΫϩεϓϥοτϑΥʔϜ

25 ΞϓϦΞʔΩςΫνϟ ʮJ04ΞϓϦઃܭύλʔϯೖ໳ʯͰษڧ͠·͠ΐ͏

26 w 5FTUBCJMJUZͷ޲্ w ϏδωεϩδοΫΛ7JFX$POUSPMMFS͔Β੾Γग़͢ w 6*ͷঢ়ଶΛϞσϧԽ͠ɺͦΕࣗମΛςετͰ͖ΔΑ͏ʹ͢Δ w ঢ়ଶͷอ࣋ɾมߋΛ͢Δ໾ׂΛू໿͢Δ w
Մಡੑͷ޲্΍ɺҙਤ͠ͳ͍෭࡞༻ όά ͷࠞೖΛ๷͙ w ґଘੑͷ੍ޚ w ϏδωεϩδοΫΛ6*,JUͳͲϓϥοτϑΥʔϜʹґଘͤ͞ͳ͍ w ֤ίϯϙʔωϯτΛQSPUPDPM࣮૷ͳͲͰૄ݁߹ʹ͢Δ ֤छΞʔΩςΫνϟͷίϯηϓτ

27 w Ͳ͏ͯ͠ϦΞΫςΟϒϓϩάϥϛϯά͕ྲྀߦΔͷ͔ʁ w ʮ࣌ؒʯΛந৅Խͯ͠ѻ͑Δ͔Βͩͱߟ͍͑ͯΔ w ΠϯλʔϑΣΠεͷ҉໧తͳ࣮૷ ಉظඇಉظ ৘ใ w
͍ͭൃੜ͢Δ͔Θ͔Βͳ͍ϢʔβγεςϜΠϕϯτ w 6*ࣗମ͕࣋ͭঢ়ଶͷมԽ FHεΫϩʔϧҐஔ w ͢΂ͯͷ࣌ؒΛந৅Խ͢Δʹ͸࿑ྗ͕͔͔ΔͷͰ֮ޛ͕ඞཁ ༨ஊϦΞΫςΟϒʹ͍ͭͯ

30 w ༷ʑͳఆܗ࡞ۀͷࣗಈԽπʔϧ w Ϗϧυ ςετ ॺ໊ ഑෍ ূ໌ॻߋ৽ͳͲ਺ଟ͘ͷ࡞ۀΛࣗಈԽͰ͖Δπʔϧ w
සൟʹൃੜ͢Δ࡞ۀ΍ස౓͸௿͍͚Ͳ࣌ؒͷ͔͔Δ࡞ۀ͕Φεεϝ w Ϣχοτςετ w ಈ࡞֬ೝ༻ͷϏϧυ࡞੒ w ূ໌ॻͷߋ৽ w ։ൃϝϯόʔؒͰ࡞ۀ಺༰Λ౷ҰͰ͖Δ w $* ޙड़ ʹͷͤΔͷ΋ϥΫʹͳΔ 'BTUMBOF

33 w $POUJOVPVT*OUFHSBUJPO ܧଓతΠϯςάϨʔγϣϯ w ϒϥϯνͷϚʔδλΠϛϯάͳͲͰςετΛ࣮ߦͯ͠඼࣭Λҡ࣋͢Δ͜ͱ w $POUJOVPVT%FMJWFSZ ܧଓతσϦόϦ
w ࣗಈσϓϩΠΛࢦ͚͢ͲΞϓϦ։ൃʹ͓͍ͯ͸Ϗϧυ഑෍ͷࣗಈԽΛࢦ͢͜ͱ͕ଟ͍ $*$%ͷϝϦοτͱϫʔΫϑϩʔ PullRequest Run Tests Merge Archive Upload Distribute Continuous Integration Continuous Delivery

34 w ΞϓϦ͚ͩͰ͸ͳ͍൚༻$*αʔϏε w J04͸ઐ༻ͷϓϥϯ͕༻ҙ͞Ε͍ͯΔ w ฒྻ਺ Ϗϧυ࣌ؒ෼݄Ͱʙ w DJSDMFDJDPOpHZNMΛฤूͯ͠ॲཧΛఆٛ
w $JSDMF$*Ͱ͸ॺ໊ؔ࿈ͷαϙʔτ͕ͳ͍ w GBTUMBOFNBUDIͷར༻Λਪ঑ $JSDMF$*

35 w ϞόΠϧಛԽܕ$*αʔϏε w ฒྻ਺ ෼ϏϧυͰʙ w ෼Ϗϧυ Ϗϧυ݄ͷແྉϓϥϯ͋Γ w
ϫʔΫϑϩʔͷϏδϡΞϧΤσΟλ͕༻ҙ͞Ε ͍ͯΔ w ॺ໊पΓ΋αϙʔτ #JUSJTF

36 w .JDSPTPGUͷΞϓϦ։ൃαϙʔτπʔϧ w $* $%ʹՃ͑ͯΫϥογϡϨϙʔτػೳͳͲ৭ʑ w ฒྻ਺ ෼Ϗϧυ ෼݄·Ͱແྉ
w ฒྻ਺͝ͱʹ ԁ w ߋʹ՝ۚ͢Δͱ࣮ػςετ΋Մೳ w ॺ໊·ΘΓ΋αϙʔτ w ݱࡏ͸8FC)PPL͔खಈͰͷ࣮ߦͷΈ 7JTVBM4UVEJP"QQ$FOUFS

37 w 9DPEF4FSWFS w 9DPEFͰ౷߹͞Εͨ$*ػೳ w .BDຊମͷՁ֨Λআ͚͹ ແྉ w ࣮ػςετ
ॺ໊ ఆظ࣮ߦͳͲ΋αϙʔτ w +FOLJOT w ੲ͔Β͋Δ൚༻$*πʔϧ w ࣾ಺2"νʔϜ͕͋Δͱ͜Ζ͸࠾༻ͯ͠Δ͔΋ʁ 9DPEF4FSWFS +FOLJOT 9DPEFͷ*OUFHSBUJPOϨϙʔτ

38 $*αʔϏεൺֱ $JSDMF$* #JUSJTF "QQ$FOUFS 9DPEF4FSWFS +FOLJOT ϗεςΟϯά Ϛωʔδυ Ϛωʔδυ
Ϛωʔδυ ηϧϑ ηϧϑ ແྉར༻ ෆՄ Մೳ Մೳ Մೳ Մೳ Ϗϧυ੍ݶ ࠷҆ϓϥϯ ฒྻ਺ ෼݄ ฒྻ਺ ෼Ϗϧυ Ϗϧυ݄ ฒྻ਺ ෼Ϗϧυ ෼݄ ฒྻ਺̍ ੍ݶͳ͠ ॺ໊αϙʔτ φγ ΞϦ ΞϦ ΞϦ ΞϦʁ ఆظ࣮ߦ ΞϦ ΞϦ φγ ΞϦ બ୒ࣜ ΞϦ

39 w "QQMFެࣜͷϕʔλςετπʔϧ w ໊ͷ಺෦ςελʔ ໊ͷ֎෦ςελʔʹ഑෍Մೳ w ֎෦ςελʔ΁ͷ഑෍ʹ͸৹͕ࠪඞཁ w
1VCMJD-JOLʹΑΔެ։΋αϙʔτ༧ఆ w ؅ཧऀଆͯର৅Λ؅ཧ͠ͳͯ͘ྑ͍ͷͰϥΫ w ։ൃ؀ڥ༻Ϗϧυͷ഑෍ʹ͸޲͔ͳ͍ "QQMF5FTU'MJHIU

40 w (PPHMFࡿԼͷϕʔλ഑෍αʔϏε w &OUFSQSJTFͰ͋Ε͹ ഑෍਺ͷ੍ݶ͸ͳ͍ w Πϯετʔϧ͢ΔଆͰϢʔβొ࿥͕ඞཁ w ։ൃ؀ڥ༻ϏϧυͳͲ΋ࣗ༝ʹ഑෍Մೳ
w 'JSFCBTF΁ͷ౷߹͸·ͩͰ͔͢ 'BCSJD#FUB

41 w ࠃ࢈ͷϕʔλ഑෍αʔϏε w Πϯετʔϧ͢Δଆ͔Β͢Δͱ೔ຊޠ҆৺ w &OUFSQSJTFͰ͋Ε͹ ഑෍਺ͷ੍ݶ͸ͳ͍ w 1VCMJD-JOLʹΑΔެ։΋αϙʔτ
w Ϣʔβ؅ཧΛ͠ͳ͍͍ͯ͘ͷͰඇৗʹϥΫ w ݸਓ޲͚ແྉϓϥϯ΋͋Δ͕νʔϜ༻్ͩͱ༗ྉ %FQMPZ(BUF

42 w .JDSPTPGU੡αʔϏε w $*ػೳͱҰॹʹ഑෍·Ͱ̍αʔϏεͰ࣮ݱͰ͖Δ w Πϯετʔϧ͢ΔଆͰϢʔβొ࿥͕ඞཁ w "QQ4UPSF$POOFDUͱ࿈ܞͯ͠ετΞ഑෍·Ͱߦ͑Δ w
ແྉ 7JTVBM4UVEJP"QQ$FOUFS

43 w 9DPEFͰ౷߹͞Εͨػೳ w ηϧϑϗεςΟϯάܕ w ઃఆ͢Ε͹Ϣʔβొ࿥ແ͠ʹ୭Ͱ΋ΠϯετʔϧՄೳ w /8ߏங͕໘౗ 9DPEF4FSWFS

44 ϕʔλ഑෍αʔϏεൺֱ 5FTU'MJHIU 'BCSJD#FUB %FQMPZ(BUF "QQ$FOUFS 9DPEF4FSWFS ϗεςΟϯά Ϛωʔδυ Ϛωʔδυ
Ϛωʔδυ Ϛωʔδυ ηϧϑ ແྉར༻ Մೳ Մೳ Մೳ Մೳ Մೳ Ϣʔβ؅ཧ ඞਢͰ͸ͳ͍ ඞਢ ඞਢͰ͸ͳ͍ ඞਢ ඞਢͰ͸ͳ͍ &OUFSQSJTF഑෍ ෆՄ Մೳ Մೳ Մೳ Մೳ

45 w Ͱ͖Δ͚ͩ࠷ॳʹ·Δͬͱ؀ڥΛ࡞͓ͬͯ͘ͷ͕Φεεϝ w ։ൃऴ൫ͰରԠ͠Α͏ͱࢥ͏ͱɺ༨༟ͳͯ͘์ஔ͕ͪ͠ w Ϗϧυ͕௨Δ͔Ͳ͏͔͚ͩͷνΣοΫͰ΋͍͍ͱࢥ͍·͢ w ࠷௿Ͱ΋ϕʔλ൛ͷࣗಈ഑෍͚ͩͰ΋࡞͓͖ͬͯ·͠ΐ͏ w
ΤϯδχΞҎ֎͕޷͖ͳ࣌ʹνΣοΫͰ͖ΔͷͰ։ൃʹूதͰ͖Δ w 'BTUMBOFͱ૊Έ߹Θͤͯ࢖͏ͱɺҠߦ͠΍ͯ͘͢(00% $*$%ʹ͍ͭͯ

48 w -JOUFSίʔυελΠϧͷ౷Ұ΍ɺ໰୊͕ى͖΍͍͢ॻ͖ํͷνΣοΫπʔϧ w 4XJGU-JOU͕ϝδϟʔ 0CK$ʹ0$-JOU΋͋Δ͚Ͳ͋·Γར༻ࣄྫฉ͔ͳ͍ w ϥΫϚͷྫ w
*60 ΞΫηε Λߦ͏࣌͸෦෼తʹίϝϯτΛඞͣ࢒͢Α͏ʹ͢Δ w νʔϜ։ൃͰศར͚ͩͲɺ-JOUFSΛ࢖͏͜ͱ͕໨తʹͳΒͳ͍Α͏ʹ஫ҙ ͦͷଞͷ։ൃπʔϧ

51 ΫϩεϓϥοτϑΥʔϜ

52 w 'BDFCPPL͕೥ʹൃදͨ͠ΫϩεϓϥοτϑΥʔϜ։ൃπʔϧ w ʮ-FBSOPODF XSJUFBOZXIFSFʯ͕ൃද౰࣌ͷίϯηϓτ w +BWB4DSJQU PS"MU+4 Λ࢖ͬͯ3FBDUͷύϥμΠϜͰJ04"OESPJEΞϓϦΛ։ൃ͢Δ
w 'BDFCPPL "JSCOC 1JOUFSFTU 6CFSͳͲେاۀ͕࠾༻ͯ͠ظ଴஋͕ߴ·Δ w ࣄྫ͕૿͖͑ͯͨҰํͰ"JSCOC͕3/ར༻ఀࢭΛද໌ 3FBDU/BUJWF 3/

53 w (PPHMF͕೥ʹൃදͨ͠πʔϧ w J04 "OESPJE 8FCΛλʔήοτͱͯ͠%BSUͰهड़ w ߴύϑΥʔϚϯε w
࣮૷ύλʔϯ͕ܾ·͍ͬͯΔ w "OESPJE J04޲͚ͷ6*ϥΠϒϥϦ΋ඪ४Ͱఏڙ͞Ε͍ͯΔ w .BUFSJBM$PNQPOFOUT8JEHFUT $VQFSUJOP J04TUZMF 8JEHFUT w LPOJGBS͞Μͷ%SPJE,BJHJΞϓϦ͕͋ͬͨΓNPOP͞Μ͕ϋϚͬͯͨΓ 'MVUUFS

54 w 3FBDUΛཧղͯ͠Δਓʹͱͬͯ͸Ұఆͷબ୒ࢶ w ։ൃϝϯόʔͷߏ੒΍εΩϧηοτ͕બ୒ͷج४ w ωΠςΟϒ࣮૷Λ3/'MVUUFSͰॻ͖௚͢ϝϦοτ͸ࠓ͸ײ͡ͳ͍ w ৽نҊ݅ͰΫϩεϓϥοτϑΥʔϜ։ൃ଎౓ॏࢹͳΒΞϦ w
ҰൠతʹαʔϏε͕੒௕ෳࡶԽ͢Ε͹ϓϥοτϑΥʔϜʹد͍ͬͯ͘ ϋζ w ނʹɺωΠςΟϒͱͷڞଘ͕Ͱ͖Δ͔Λॏཁࢹ w ݱঢ়'MVUUFSΑΓ͸3/ͷํ͕ωΠςΟϒͱͷϒϦοδ΍ڞଘ͕͠΍ͦ͢͏ͳҹ৅ ωΠςΟϒWT3FBDU/BUJWFWT'MVUUFS ओ؍

·ͱΊ

56 w ΞϓϦ։ൃͷ̔ͭͷτϐοΫεʹ͍ͭͯ঺հɾ੔ཧ w ݴޠɺґଘੑ؅ཧɺλʔήοτߏ੒ɺΞʔΩςΫνϟɺࣗಈԽɺ$*$%ɺπʔϧɺΫϩε ϓϥοτϑΥʔϜ w ॠؒతͳ࿩୊ੑʹ߄ͯͳͯ͘΋େৎ෉ w ͦΕ͕ղܾ͠Α͏ͱ͍ͯ͠Δ՝୊Λ͔ͬ͠Γͱཧղ͓ͯ͘͜͠ͱ͕େࣄ
w ਓؾʹͳΔօ͕ಉ͡՝୊Λ͍࣋ͬͯΔࣗ෼΋͍͔ͭૺ۰͢Δ໰୊Ͱ͋Δ w ؾʹͳͬͨτϐοΫʹ͍ͭͯɺ͋ͱͰௐ΂ͯ΋Β͑Δͱ͍͍ͱࢥ͍·͢ ·ͱΊ

IUUQTXXXXBOUFEMZDPNQSPKFDUT ੵۃ࠾༻தʂ

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State of the Union 〜 2018年のアプリ開発事情

State of the Union 〜 2018年のアプリ開発事情

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