さては密結合だなオメー Clean Architecture で学ぶテストフレンドリーな疎結合設計/Loosely Coupled Design Learning with Clean Architecture

גࣜձࣾΩοζελʔ CTO ৿ɹ఩࠸ ͯ͞͸ີ݁߹ͩͳΦϝʔ Clean Architecture ͰֶͿ ςετϑϨϯυϦʔͳૄ݁߹ઃܭ Unity ςετ׬શʹཧղͨ͠
@ 2018/06/06

2 ͜Μ͹Μ͸ʂ

3 ಥવͰ͕͢ ઃܭਤͷݕূ༻ઃܭਤ ςετɺॻ͍ͯ·͔͢ʁ

4 ࢲ͸ɺ࠷ۙ·Ͱ ॻ͍͍ͯ·ͤΜͰͨͬ͠ʂ

r΋ΜΓ͌ઌੜ l͋ͳͨͨͪͷதͰςετΛॻ͍͍ͯΔऀ͕ɺ ·ͣɺࢲʹੴΛ౤͛ͳ͍͞ɻz 5

6 ͋͋ͬʂੴΛ౤͛ͳ͍Ͱʂ ϚαΧϦΛ౤͛ͳ͍Ͱʂʂʢ੾࣮ʣ

ࣗݾ঺հ 7

w৿ɹ఩࠸ʢBLB΋ΜΓ͌ઌੜʣ w೥࡛ۄݝ࢈ wגࣜձࣾΩοζελʔ$50 wࡀϲ݄ͷ່ʹκοίϯ-07& w͓ञͱ߹এͱϓϩάϥϛϯά͕झຯ w5XJUUFS!NPOSZ(JU)VC!NPOSZ 8 Who am I
?

w ࢠͲ΋޲͚εϚϗΞϓϦ  ։ൃͳͲ w ೥͋ͨΓ͔Β  6OJUZΨοπϦ w ͬ͜͝ϥϯυ  ྦྷܭສ%- w
"QQ4UPSF(PPHMF1MBZ  ʹͯࢠͲ΋޲͚ΧςΰϦ  ϥϯΩϯά501 9 ͓͠͝ͱ

લஔ͖ 10

11 ࠓճ͸

12 ϓϩδΣΫτͷίʔυΛ ςετ͠қ͘͢Δख๏ʹ ͍͓ͭͯ࿩͠͠·͢ɻ

ΞδΣϯμ 13

w6OJUZςετʹ͓͚Δ՝୊ wૄ݁߹ͷجຊతͳߟ͑ํ w$MFBO"SDIJUFDUVSFʹ͍ͭͯ w$"'6ʹ͍ͭͯ 14 ͓͠ͳ͕͖

15 ຊ୊

Unity ςετʹ͓͚Δ՝୊ 17

w୯ମςετ6OJU5FTU w݁߹ςετ*OUFHSBUJPO5FTU w૯߹ςετ4ZTUFN5FTU 18 ςετ is Կʁ Unity ςετʹ͓͚Δ՝୊

wʮ͍΍ɺγϯϓϧͳΫϥεͳΒ65ॻ͚ΔΜ͢Αʯ wঢ়ଶΛඞཁͱ͢Δςετ͕γϯυΠ w֎෦σʔλʹґଘ͢Δςετ΍ɺ 4DSJQUBCMF0CKFDUͷσʔλʹґଘ͢Δςετ͕  γϯυΠ w7JFX .POP#FIBWJPVS ʹґଘ͢Δͱ͔ͳΔͱ  ઈ๬త 19
Կނɺॻ(͔|͚)ͳ͍ʁ Unity ςετʹ͓͚Δ՝୊

wʮ͍΍ɺ1MBZ.PEFςετ͋Δ΍Μʯ w͍͟΍ͬͯΈΔͱɺ৭ʑͳ՝୊͕  ݟ͑ͯ͘Δ 20 Կނɺॻ(͔|͚)ͳ͍ʁ Unity ςετʹ͓͚Δ՝୊

w͋ΔΫϥε͸ͭҎ্ͷΫϥεͷ  ΠϯελϯεΛඞཁͱ͍ͯ͠Δ w৔߹ʹΑͬͯ͸ɺͦΕΒͷ  Πϯελϯε͸ߋʹผͷΫϥεͷ  ΠϯελϯεΛඞཁͱ͍ͯ͠Δ  ͳΜͯ͜ͱ΋ 21 ՝୊ʁ Unity ςετʹ͓͚Δ՝୊

wσʔλͷݩωλʹڌΒͣɺσʔλΛ  औಘɾઃఆ͢ΔॲཧΛςετ͍ͨ͠ w<0CTPMFUF>3FTPVSDFT-PBE w6OJUZ8FC3FRVFTU wϩʔΧϧΩϟογϡ wFUD 22 ՝୊ʁ Unity
ςετʹ͓͚Δ՝୊

w7JFXͷॲཧ͕λοϓೖྗΛલఏʹͯ͠ ͍Δ wଞͷ(BNF0CKFDU͕ॳظԽ͞Ε͍ͯΔ ίτΛલఏʹ͍ͯ͠Δ w4JOHMFUPOͱ͔ͰલͷγʔϯͰઃఆ͞ Εͨ஋Λඞཁͱ͢Δ 23 ՝୊ʁ Unity ςετʹ͓͚Δ՝୊

24 ͜͏͍͏ঢ়ଶ

26 ີ݁߹

27 ີ݁߹

28 ີ݁߹

w4JOHMFUPO.POP#FIBWJPVSűŒŕŰŖ wTUBUJD͓͡͞Μ w ߦΛ௒͑Δ6QEBUF 30 ີ݁߹ Unity ςετʹ͓͚Δ՝୊

wͪΐͬͱؾΛൈ͘ͱ͙͢͜͏ͳΔ w݁߹Λ΄Ͳ͍ͯૄ݁߹ʹ͠Α͏ʂ 31 ີ݁߹ Unity ςετʹ͓͚Δ՝୊

32 ͦͷลΛ౿·͑ͯ

ૄ݁߹ͷجຊతͳߟ͑ํ 34

36 Ҏ্ɻ

37 ………ɻ

38 ૄ݁߹ͷͨΊͷ  ςΫχοΫΛʢࡶʹʣ঺հ

w4JOHMF3FTQPOTJCJMJUZ1SJODJQMF w0QFODMPTFEQSJODJQMF w-JTLPWTVCTUJUVUJPOQSJODJQMF w*OUFSGBDFTFHSFHBUJPOQSJODJQMF w%FQFOEFODZJOWFSTJPOQSJODJQMF 39 SOLID ݪଇ ૄ݁߹ͷجຊతͳߟ͑ํ

w୯Ұ੹೚ͷݪଇ w։์ด࠯ͷݪଇ wϦείϑͷஔ׵ݪଇ wΠϯλϑΣʔε෼཭ͷݪଇ wґଘੑٯసͷ๏ଇ 40 SOLID ݪଇ ૄ݁߹ͷجຊతͳߟ͑ํ

w40-*%ݪଇ͕कΒΕ͍ͯΔίʔυ͸  ͦͷҰͭҰͭʹ͍ͭͯɺؔ৺ͷ෼཭͕  ߦΘΕ͍ͯΔͱݴ͑Δ w͢ͳΘͪɺݸʑͷίʔυʹ͓͚Δ  ςετର৅ͷؔ৺ࣄ͕গͳ͍ w͢ͳΘͪɺૄ݁߹ͩͱݴ͑Δ 42 SOLID ݪଇ ૄ݁߹ͷجຊతͳߟ͑ํ

wૄ݁߹ͳγεςϜʹର͢Δςετ͸  ͭͷςετίʔυ͕ෛ͏੹຿͕ڱ͍ wςετΛ࣮ࢪ͢Δࡍͷ४උॲཧ͕  গͳ͘ͳΔέʔε͕ଟ͍ 43 ૄ݁߹ × ςετ ૄ݁߹ͷجຊతͳߟ͑ํ

wۃ࿦ͱͯ͠͸ɺ֤ཁૉʹର͢Δ65͕  ॻ͔Ε͍ͯΕ͹*5͸ͦ͜·Ͱ  ؤுΒͳͯ͘΋ࡁΉ 44 ૄ݁߹ × ςετ ૄ݁߹ͷجຊతͳߟ͑ํ

45 ͰʁHow to ૄ݁߹ʁ

Clean Architecture ʹ͍ͭͯ 47

48 ͷɺલʹ

w͜͜·Ͱ͸୯ҰͷΫϥεʹؔ͢Δ  ؔ৺ͷ෼཭ʹ͍ͭͯ wҰͭࢹ࠲Λ֦͛ͯϨΠϠʔʹؔ͢Δ  ؔ৺ͷ෼཭ʹ͍ͭͯߟ͑Δ 49 ؔ৺ͷ෼཭ Clean Architecture ʹ͍ͭͯ

wιϑτ΢ΣΞΞʔΩςΫνϟ ʹԙ͍ͯɺҰൠʹҎԼͷ  Α͏ʹϨΠϠʔΛ෼͚Δ  ʢίτ͕ଟ͍ʣ w1SFTFOUBUJPO ݟͨ໨ w%PNBJO ϩδοΫ
w%BUB σʔλ 50 ؔ৺ͷ෼཭ for ϨΠϠʔ Presentation Domain Data Clean Architecture ʹ͍ͭͯ

w.7$΍.71ͳͲͷ  ΞʔΩςΫνϟʹΑΓ  1SFTFOUBUJPOͱ%PNBJO  ͷ෼཭͕࣮ݱ͞ΕΔ w֤ΞʔΩςΫνϟͰ  ෼཭ͷ۩ମతͳखஈ͸  ༷ʑ w.71΍.77.ͩͱ  3YΛ࢖͏ͷ͕Ұൠతʁ 51
ؔ৺ͷ෼཭ for ϨΠϠʔ Presentation Domain Data Clean Architecture ʹ͍ͭͯ

w%PNBJOͱ%BUBͷ෼཭͸  ֤छσβΠϯύλʔϯ͕  ୲͏͜ͱ͕ଟ͔ͬͨ wͱ͍͏͔ɺ.7 Ͱ͸  %PNBJO૚Ҏ߱ʹ͍ͭͯͷ  ੹຿ΛΞʔΩςΫνϟ  ͱͯ͠͸ෛ͍ͬͯͳ͍ײ͡ 52 ؔ৺ͷ෼཭
for ϨΠϠʔ Presentation Domain Data Clean Architecture ʹ͍ͭͯ

wͰɺͦͷล΋ఆٛͨ͠  ΞʔΩςΫνϟ͕ొ৔͢Δ w)FYBHPOBM"SDIJUFDUVSF w0OJPO"SDIJUFDUVSF w$MFBO"SDIJUFDUVSF 53 ؔ৺ͷ෼཭ for ϨΠϠʔ Presentation
Domain Data Clean Architecture ʹ͍ͭͯ

54 Α͏΍͘ຊ୊

w6ODMF#PC 3PCFSU$.BSUJO ࢯ͕ ೥݄ʹఏҊ wJ04ͷ7*1&3ͳΜ͔΋ίϨ͕ݯྲྀ 55 Clean Architecture Clean Architecture
ʹ͍ͭͯ

56 Clean Architecture Clean Architecture ʹ͍ͭͯ

57 ͳΔ΄ͲɺΘ͔ΒΜɻ

58 ࢲͳΓʹղऍͯ͠Έͨ

wϨΠϠʔͷ໾ׂΛఆٛ͢Δ wϨΠϠͷ੹຿Λ໌֬Խ wOBNFTQBDFͳͲͰ  ෼͔Γ΍͘͢͢Δ 59 Clean Architecture Clean Architecture ʹ͍ͭͯ

wґଘͷϧʔϧΛकΔ wؔ৺ͷ޲͖͸Ұํ޲ wݪଇతʹಉϨΠϠʔؒ͸  ґଘͤ͞ͳ͍ wϨΠϠʔΛඈͼӽ͑ͳ͍ 60 Clean Architecture Clean Architecture
ʹ͍ͭͯ

wϨΠϠʔఆٛ͸ࣗ༝ w਺ͱ͔͸ෆఆ wϓϩμΫτຖʹॊೈʹ w଍Γͳ͖Ό૿΍͢ 61 Clean Architecture Clean Architecture ʹ͍ͭͯ

wϨΠϠʔؒͷؔ৺Λ෼཭ w40-*%ݪଇ wJOUFSGBDFΛ༻͍ͯ  ۩৅Ϋϥε΁ͷґଘഉআ w%FQFOEFODZ*OKFDUJPOT 62 Clean Architecture Clean Architecture
ʹ͍ͭͯ

wಉ৺ԁͷਤ͸ؔ৺ͷ޲͖ w಺ଆ͸֎ଆΛ஌Βͳ͍ w(BUFXBZT͸%#͕  Ͳ͏΍ͬͯσʔλΛ  ѻ͏͔͸஌Βͳ͍ɺͱ͔ wσʔλͷྲྀΕ͸ผͷ͓࿩ wӈԼͷਤ͕ιϨ 63 Clean Architecture
Clean Architecture ʹ͍ͭͯ

64 ΜͰ

65 ͜ΕΛ Unity ʢ͔ͬͯ C#ʣ  Ͱ࣮૷ͯ͠Έͨ

CAFU ʹ͍ͭͯ 67

w$MFBO"SDIJUFDUVSF'PS6OJUZͷུ wʮ͔;ʔʯͱಡΉ wώωϦ͕ͳ͍ͱ͔ݴΘͳ͍ɻ w.*5-JDFOTFͳ044 wIUUQTHJUIVCDPNVNNQSPKFDUTDBGV@DPSF 68 CAFU is Կʁ CAFU
ʹ͍ͭͯ

wجຊతʹ͸JOUFSGBDFͷΈΛఏڙ w6OJUZͱର࿩͢Δ্ͰඞཁʹͳΔ  ΫϥεΛఏڙ wΩοζελʔͷΞϓϦ։ൃͰ  ௒ઈ࢖ͬͯΔ 69 CAFU is Կʁ CAFU
ʹ͍ͭͯ

70 ϨΠϠʔఆٛ

71 ϨΠϠʔఆٛ CAFU ʹ͍ͭͯ

72 ґଘؔ܎ CAFU ʹ͍ͭͯ

w.POP#FIBWJPVSͱର࿩͠  ݟͨ໨Λ࢘ΔϨΠϠʔ w1SFTFOUFSͷΈґଘՄ 73 Presentation / View CAFU ʹ͍ͭͯ

w7JFXͱ6TF$BTFΛܨ͙ϨΠϠʔ w6TF$BTF͸ޙड़ wঢ়ଶΛ࣋ͨͳ͍ 74 Presentation / Presenter CAFU ʹ͍ͭͯ

wϏδωεϩδοΫͷ࣮૷ͦͷ΋ͷ wܭࢉॲཧͳͲΛ୲͏ wޙड़ͷ.PEFMͱͯ͠දݱ͞ΕΔ  ঢ়ଶΛอ࣋ͨ͠Γ͢Δ 75 Domain / UseCase CAFU ʹ͍ͭͯ

wओʹ7JFXͰͷར༻Λ໨తͱͨ͠  σʔλͷߏ଄ w6OJ3YΛ௨ͯ͡7JFXʹૹΒΕΔ w3YετϦʔϜΛؚΊͨঢ়ଶΛ؅ཧ 76 Domain / Model CAFU ʹ͍ͭͯ

wޙड़ͷ&OUJUZͱ.PEFMͱΛ૬ޓม׵ ͢ΔͨΊͷTranslate()ϝιουΛ  උ͑Δ w֎෦࢓༷ͷมߋΛ6TF$BTF΍7JFX ʹ఻೻ͤ͞ͳ͍ͨΊʹఆٛ 77 Domain / Translator CAFU
ʹ͍ͭͯ

w%BUBϨΠϠʔͱର࿩͢ΔͨΊͷ  ϨΠϠʔ wσʔλΛಡΈॻ͖͢ΔͨΊͷ  ΠϯλϑΣʔεΛ࣋ͭ 78 Domain / Repository CAFU ʹ͍ͭͯ

wσʔλͷߏ଄Λఆٛͨ͠ϨΠϠʔ wσʔλͷ࣮ମ͕ԿͰ͋Εɺ  ߏ଄දݱͱͯ͠͸ҰͭͷΫϥεͰද͢ w4DSJQUBCMF0CKFDU͕ϝϯυΠʜɻ 79 Data / Entity CAFU ʹ͍ͭͯ

wσʔλͷऔΓѻ͍Λ࣮૷ͨ͠ϨΠϠʔ w4DSJQUBCMF0CKFDUͱ͔ɺ  8FC"1*ܦ༝ͷ+40/ͱ͔ɺ  42-JUFܦ༝ͷσʔλͱ͔ɺFUD 80 Data / DataStore CAFU ʹ͍ͭͯ

wFOVNͱ͔DPOTUతͳ஋Λ؅ཧ͢Δ ͨΊͷ"QQMJDBUJPOϨΠϠʔ w%*༻ͷ'BDUPSZΫϥεͱ͔Λ  ֨ೲ͢Δ6UJMJUZϨΠϠʔ 81 ͦͷଞ CAFU ʹ͍ͭͯ

wམͪϞϊήʔϜΛྫʹղઆ wʙ৭ͷάϛ͕  ݸηοτͰམԼ wͭἧ͏ͱফ͑Δ wළͷ࠷্ஈ·Ͱୡͨ͠Β  ήʔϜΦʔόʔ wͦͷ࣌఺ͷείΞΛه࿥ 82 ྫ͑͹ CAFU
ʹ͍ͭͯ

• Controller w γʔϯ੍ޚ w 1SFTFOUFSॳظԽ • Gummi w ߱ͬͯ͘Δάϛ 
•Floor wϘτϧͷচ •Ceil wϘτϧͷఱҪ •Wall wϘτϧͷน 83 Presentation / View CAFU ʹ͍ͭͯ

w Gummiʹ.PDLΠϕϯτ͕ඈΜͰ͖ͨΒ  .PDL1SFTFOUFSͷϝιου͕ݺ͹ΕΔ͔ʁςετ w .PDL1SFTFOUFSͷ3YετϦʔϜʹ  ஋͕ྲྀΕ͖ͯͨΒWall͕ΤϑΣΫτΛ  *OTUBOUJBUF͢Δ͔ʁςετ 84 Presentation /
View CAFU ʹ͍ͭͯ

•StagePresenter wγʔϯैଐ1SFTFOUFS 85 Presentation / Presenter CAFU ʹ͍ͭͯ

86 Presentation / Presenter CAFU ʹ͍ͭͯ w StagePresenterͷ֤ϝιουΛςετ w 6TF$BTFͷΠϯελϯε͸શͯ.PDL
w 1SFTFOUFSϨΠϠʔ͸ςετॻ͘Ձ஋௿Ί

•GummiStateUseCase wεςʔδதͷάϛͷঢ়ଶ Λ؅ཧɾܭࢉ wάϛண஍ˠ࠶ܭࢉͱ͔ wͪ͗Ε൑ఆͱ͔ •ScoreUseCase wಘ఺Λ؅ཧɾܭࢉ •StageUseCase wεςʔδͷߏ੒Λ؅ཧ wԿ৭ͷάϛΛग़͢ʁ
wམԼεϐʔυ͸ʁ 87 Domain / UseCase CAFU ʹ͍ͭͯ

88 Domain / UseCase CAFU ʹ͍ͭͯ w ֤6TF$BTFͷQVCMJDϝιουΛςετ w ೖྗ΍ग़ྗ͸1SJNJUJWFͳ஋΍JOUFSGBDFΛ 
௨ͯ͡ߦΘΕΔϋζ w ScoreUseCaseͷ&OUJUZ΍.PEFM͸.PDL͢Δ

•GummiModel wάϛҰͭ෼Λදݱ w৭ͱ͔4UBUFͱ͔ •GummiMapModel wεςʔδ಺ͷશάϛ৘ใ  •ForecastGummiModel w༧ࠂάϛͷঢ়ଶ •ScoreModel wݱࡏͷಘ఺ •PointModel
wάϛফڈʹΑΔ֫ಘಘ఺ 89 Domain / Model CAFU ʹ͍ͭͯ

90 Domain / Model CAFU ʹ͍ͭͯ w ͪΐͬͱͨ͠஋ͷՃ޻ॲཧͳͲΛߦ͍ͬͯΔ  ৔߹͸ςετॻ͘ w
جຊతʹ͸ςετॻ͔ͳͯ͘Ϥαι΢

•GummiTranslator w4UBHF-FWFM&OUJUZͱ  Ґஔ͔Β4DPSF.PEFM Λੜ੒ •ScoreEntityTranslator w4DPSF.PEFMΛ 4DPSF&OUJUZʹม׵ 91 Domain /
Translator CAFU ʹ͍ͭͯ

92 Domain / Translator CAFU ʹ͍ͭͯ w GummiModelTranslator͸IStageLevelEntityΛ  .PDLͯ͠Translate()Λςετ w
ScoreEntityTranslator͸IScoreModelΛ  .PDLͯ͠Translate()Λςετ

•ScoreRepository wείΞΛಡΈॻ͖ •StageLevelRepository wεςʔδͷάϛ৭ߏ੒  ͳͲͷϚελΛऔಘ 93 Domain / Repository CAFU
ʹ͍ͭͯ

94 Domain / Repository CAFU ʹ͍ͭͯ w ScoreRepository͸IScoreModelͷ.PDLͰςετ w StageLevelRepository͸IStageLevelEntity 
Ͱςετ

•ScoreEntity wεςʔδ෼ͷείΞ •ScoreMapEntity wશεςʔδ෼ͷείΞ  •GummiPointMapEntity w࿈࠯ຖͷ֫ಘ఺਺Ϛελ •StageLevelEntity wεςʔδ೉қ౓ఆٛ •StageLevelMapEntity wશεςʔδ෼ͷ೉қ౓
95 Data / Entity CAFU ʹ͍ͭͯ

96 Data / Entity CAFU ʹ͍ͭͯ w .PEFMಉ༷ɺಛघͳϝιουΛੜ΍͍ͯ͠ͳ͍  ݶΓςετ͸ෆཁ

•ScriptableObjectDataStore wγʔϯதͷ೚ҙͷ  ίϯϙʔωϯτ͔Β  ࢀর͞ΕΔ 4DSJQUBCMF0CKFDU͔Β  &OUJUZΛऔಘ  •LocalStorageDataStore wϩʔΧϧετϨʔδʹ  +40/ͱ͔Ͱ&OUJUZΛ  อଘͨ͠ΓಡΜͩΓ
97 Data / DataStore CAFU ʹ͍ͭͯ

98 Data / DataStore CAFU ʹ͍ͭͯ w ScriptableObjectDataStore͸'JYUVSFγʔϯ  ͔ΒͷΠϯελϯεऔಘΛςετ w
LocalStorageDataStore͸೚ҙͷ&OUJUZΛ  ૬ޓʹಡΈॻ͖ग़དྷΔ͔Λςετ

99 σʔλͷྲྀΕ

wϘλϯ͕ΫϦοΫ͞ΕͯԿ͔ॲཧ͢Δ 100 σʔλͷྲྀΕ CAFU ʹ͍ͭͯ

wԿΒ͔ͷτϦΨʔͰঢ়ଶ͕มԽ 101 σʔλͷྲྀΕ CAFU ʹ͍ͭͯ

wλΠϚʔతͳ࣮૷ 102 σʔλͷྲྀΕ CAFU ʹ͍ͭͯ

wόφʔը૾Λαʔό͔Βऔಘ 103 σʔλͷྲྀΕ CAFU ʹ͍ͭͯ

wόφʔը૾Λ୺຤ʹΩϟογϡ 104 σʔλͷྲྀΕ CAFU ʹ͍ͭͯ

wϚελσʔλΛ4DSJQUBCMF0CKFDU͔Βऔಘ 105 σʔλͷྲྀΕ CAFU ʹ͍ͭͯ

wϚελσʔλΛ4DSJQUBCMF0CKFDU͔Βऔಘ  ʢϥΠτ൛ʣ 106 σʔλͷྲྀΕ CAFU ʹ͍ͭͯ

·ͱΊ 107

wૄ݁߹ͳΞϓϦέʔγϣϯΛ  ߏங͢Δͱςετ͕͠΍͘͢ͳΔ w$MFBO"SDIJUFDUVSF͕Φεεϝ w$"'6࢖ͬͯΈͯͶʂελʔ΋śūŢŒţ 108 ·ͱΊ

109 Thank you for your attention!!

さては密結合だなオメー Clean Architecture で学ぶ テストフレンドリーな疎結...

さては密結合だなオメー Clean Architecture で学ぶ テストフレンドリーな疎結合設計/Loosely Coupled Design Learning with Clean Architecture

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さては密結合だなオメー Clean Architecture で学ぶテストフレンドリーな疎結...

さては密結合だなオメー Clean Architecture で学ぶテストフレンドリーな疎結合設計/Loosely Coupled Design Learning with Clean Architecture