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ෳࡶͳυϝΠϯʹ
టषཱ͔ͪ͘͏
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2018/12/15 JJUG CCC 2018 Fall
גࣜձࣾΤεɾΤϜɾΤε
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ձࣾհ
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10ޙͷຊΛΑ͘͢ΔࣄΛ͠Α͏
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ࣗݾհ
@su_kun_1899
ϞϒϓϩάϥϚɻΤϞɻ
৺͍ͭͰεΫϥϜϚελʔɻ
จܥΤϯδχΞɻ
Spockͱ͔ςετͷ͖ɻ
web/java/kotlin/agile/scrum
࠷ۙGo͕͖Ͱ͢ɻ
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͢͜ͱ
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ෳࡶͳυϝΠϯͱઓ͏ͨΊʹ
• Ͳ͏ͬͯ࢝ΊΔ͔
• Ͳ͏ͬͯਐΊΔ͔
• (ࢲ͕ͨͪ) Ͳ͏͍ͬͯΔ͔
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͞ͳ͍͜ͱ
• ಛఆͷઃܭख๏
• DDD, OOP...
• ٕज़ͷৄࡉ
• Kotlin, SpringBoot...
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Ͳ͏ͬͯ͡ΊΔ͔
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ෳࡶͳυϝΠϯʁ
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• Ξϯίϯτϩʔϥϒϧ
• ๏ɾ੍ɾϧʔϧ
• ొਓɾγεςϜ
• ΦϖϨʔγϣϯ
• ࣌ؒ࣠
• εςʔλε
• etc...
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հޢอݥ
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• հޢܦӦࢧԉαʔϏε
• ࠾༻ɺӦۀɺڅ༩ɺۈଵɻɻ
• հޢอݥٻ
• WebΞϓϦέʔγϣϯ
• Kotlin + SpringBoot
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ਆಸݝࠃຽ݈߁อݥஂମ࿈߹ձHP http://www.kanagawa-kokuho.or.jp/kaigo/ 14
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հޢอݥͷෳࡶ͞
• څ, Ҭ୯Ձ
• հޢ, ݶֹ
• αʔϏεछྨ, αʔϏείʔυ
• Ճࢉɾݮࢉ, ࢉఆߏ
• ๏վਖ਼
• ެඅ, ฦ
• ࣏ࣗମ͝ͱͷಛྫ
• etc...
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๏վਖ਼
• ̏ຖʹେ෯ݟ͠
• ෳࡶͳͷΑΓෳࡶʹͳ͍ͬͯ͘
• ෳࡶ͞มԽ͢Δ
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ݱ࣮ੈք
γεςϜͷͨΊͷͷͰͳ͍
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ҰຊಓΛݟ͚ͭΔ
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Ұຊಓ
• Not ཁٻͷચ͍ग़͠
• Not Ձఏڙͷ୯Ґ
• But υϝΠϯͷ࠷খ୯Ґ
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Why?
• ҭͯΔ
• ؒҧ͑Δ
• Γ͢
• มԽΛͨΓલʹ͢Δ
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ҰຊಓΛݟ͚ͭग़͢
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υϝΠϯͷֶश
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࣮ͷϩʔϧϓϨΠ
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ϢʔβʔετʔϦʔϚοϐϯά
ϢʔβʔετʔϦʔϚοϐϯά https://www.oreilly.co.jp/books/9784873117324/ 24
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ਆಸݝࠃຽ݈߁อݥஂମ࿈߹ձHP http://www.kanagawa-kokuho.or.jp/kaigo/ 25
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1. հޢࣄۀऀ͕ར༻ऀຖͷεέδϡʔϧͷ࣮Λ֬ఆ͢Δ
• ར༻ऀຖͷٻॻʢอݥʣ
2. հޢࣄۀऀ͕ࠃͷٻֹۚΛ֬ఆ͢Δ
• հޢࣄۀऀຖͷٻॻʢอݥʣ
3. αʔϏεࣄۀऀ͕ར༻ऀͷٻֹۚΛ֬ఆ͢Δ
• ར༻ऀຖͷٻॻʢࣗඅʣ
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՝ཧ
• όοΫϩά
• TODOϦετ
• ͙͢ʹ͢
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ελʔτϥΠϯʹཱͬͨ
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Ͳ͏ͬͯਐΊΔ͔
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υϝΠϯʹϑΥʔΧε͢Δ
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ϞσϧϕʔεͷΞϓϩʔν
• (ཁٻ) -> ֓೦
• (֓೦) -> Ϟσϧ
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The complexity is complicated.
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Good programmers write code that
humans can understand.
— -Martin Fowler
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υϝΠϯͷཧղΛ໌Β͔ʹ͢Δ
• ʮ୭͕ԿΛΔ͔ʁʯ
• ཧղΛදݱ͢Δ࡞ۀ
• (ཁٻ) -> ֓೦
• (֓೦) -> Ϟσϧ
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Ϟσϧͷநग़
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!
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(ࢲ͕ͨͪ) Ͳ͏͍ͬͯΔ͔
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Ϟσϧͷநग़
• ҰຊಓͷݴޠԽ
• ໊ࢺͷநग़
• σʔλͱͦͷ࣋ͪओ
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ᝦͱϗϫΠτϘʔυ
1. Write and Talk!
2. Write and Talk!!
3. Write and Talk!!!
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Talk is cheap. Show me the code.
— Linus Torvalds
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ίʔυΛॻ͘
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Service
• ΞϓϦέʔγϣϯ͕࣮ݱ͍ͨ͜͠ͱ
• ϢʔεέʔεΛදݱ͢Δॲཧͷ୯Ґ
• ϞσϧΛ͏
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ઃܭͷͨΊͷςετ
• ݱ࣮ੈքΛදݱ͢Δͷ͕తͰͳ͍
• ServiceͷςετΛॻ͍ͯΈΔ
• ࣮ݱ͍ͨ͜͠ͱΛݟࣦΘͳ͍
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TDD Live in 50 minutes https://speakerdeck.com/twada/tdd-live-in-50-minutes 47
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def "ࠃͷٻॻΛ࡞͢Δʹ"() {
given:
// Կ͕ඞཁͰ
when:
// ॲཧΛ࣮ߦ͢Δͱ
then:
// Կ͕Ͱ͖͕͋Δͷ͔ʁ
}
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໋໊
• ୈೋݴޠ(ӳޠ)ͷஔ͖͑
• ຊޠ͔ͩΒ௨͡Δɺ·͔͠
• ओޠͷ໌֬Խ
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/**
* ݶֹཧର୯Ґͷɺڅରͷ୯Ґ
*/
fun benefitPointAppliedToPointLimit(): Point {
return min(
pointAppliedToPointLimit() - adjustmentPoint.total(),
insuranceLicense.gradingMaxPoint
)
}
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Ϟσϧͷߏ
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"ଟ͘ͷใΛूΊͨوॏͳσʔλ"
• σʔλ୯ͳΔ
• σʔλ࡞Γग़ͤͳ͍
• σʔλΛΈ߹Θͤͨҙຯͷ͋Δใ
• ใσʔλ͔Β࡞Γग़ͤΔ
SQLΞϯνύλʔϯ https://www.oreilly.co.jp/books/9784873115894/ 52
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• σʔλ͔ΒϞσϧΛੜ
• ίϯετϥΫλͰσʔλΛ͢
• ใΛϞσϧ(ͷϝιου)͕ఏڙ
• σʔλΛΈ߹ΘͤɾՃ͢Δ
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લా͞Μ͕
ࠓ݄
อݥڅඅΛ
͍͘Β͑Δͷ͔
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հޢࣄۀॴA͕લా͞Μʹ࣮ࢪͨ͠αʔϏε
• 11/10 ମհޢ 394୯Ґ
• 11/20 ੜ׆ԉॿ 181୯Ґ
• 11/30 ମհޢ 394୯Ґ
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// σʔλͷऔಘ
val serviceSection = serviceSectionRepository.findBy(sectionNumber)
val insuranceLicense = insuranceLicenseRepository.findBy(licenseNumber, monthProvided)
val actualResult = actualResultRepository.findBy(monthProvided, sectionNumber, licenseNumber)
// Ϟσϧͷੜ
val estimate = Estimate(insuranceLicense, serviceSection, actualResult)
// ใͷఏڙ
estimate.amount() // ߹ܭֹۚ
estimate.benefitAmount() // อݥڅֹۚ
estimate.careReceiverAmount() // ར༻ऀෛ୲ֹ
estimate.amountBy(careType) // αʔϏεछྨ͝ͱͷֹۚ
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!
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// σʔλͷऔಘ
val serviceSection = serviceSectionRepository.findBy(sectionNumber)
val insuranceLicense = insuranceLicenseRepository.findBy(licenseNumber, monthProvided)
val actualResult = actualResultRepository.findBy(monthProvided, sectionNumber, licenseNumber)
// Ϟσϧͷੜ
val estimate = Estimate(insuranceLicense, serviceSection, actualResult)
// ใͷఏڙ
estimate.amount() // ߹ܭֹۚ
estimate.benefitAmount() // อݥڅֹۚ
estimate.careReceiverAmount() // ར༻ऀෛ୲ֹ
estimate.amountBy(careType) // αʔϏεछྨ͝ͱͷֹۚ
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σʔλͱใΓޱʹΑͬͯมΘΔ
• ඞཁͳσʔλϞσϧͱͯ͠ѻ͏
• ϞσϧσʔλΛѻ͏୯Ґ
• σʔλΛநԽ͢ΔͱϞσϧʹͳΔ
• ϞσϧใΛఏڙ͢Δ
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! ٻॻ
" ར༻ऀ
# $! ඃอݥऀূ
# $! ࢧڅݶ୯Ґ
# $! ୯Ґ
" հޢࣄۀॴ
# $! ୯Ґ୯Ձ
# $! Ձ֨
$ ࣮εέδϡʔϧ
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ٻॻͷσʔλͱใ
• ར༻ऀ -> ٻઌ
• հޢࣄۀॴ -> ٻݩ
• ࣮εέδϡʔϧ -> ٻ໌ࡉ
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! ٻॻ
" ར༻ऀ
# $! ඃอݥऀূ
# $! ࢧڅݶ୯Ґ
# $! ୯Ґ
" հޢࣄۀॴ
# $! ୯Ґ୯Ձ
# $! Ձ֨
$ ࣮εέδϡʔϧ
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Ϟσϧͷநग़
• ୭͕
• ͲͷʮσʔλʯΛ͍ͬͯͯ
• ԿͷʮใʯΛఏڙ͢Δ
• ͱߟ͑Δͷ͔
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ਖ਼ղͳ͍
• ΓޱΛܾΊΔͷࣗͨͪ
• "खࠒͳେ͖͞"
• ୯Ұ
• ςετ
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ڥ
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• ։ൃऀ5໊
• ϗϫΠτϘʔυ
• ᝦͱϖϯ
• େ͖ͳϞχλ
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αΠΫϧͷΓସ͑ίετΛͳ͘͢
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υϝΠϯͷཧղΛ໌Β͔ʹ͢Δ
• ʮ୭͕ԿΛΔ͔ʁʯ
• ཧղϨϕϧΛදݱ
• શһ͕ཧղ͍ͯ͠Δඞཁ͕͋Δ
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ͻͱͭͷ͜ͱΛ ΈΜͳͰΔ
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ϞϒϓϩɾϞϒϫʔΫ
• ू߹
• ใڞ༗
• ڭҭޮՌ
WEB+DB PRESS Vol.102 https://gihyo.jp/magazine/wdpress/archive/2018/vol102 74
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Agile Games 2017 - Mob Programming Conference https://2017.agilegamesnewengland.com/index.php/mob-programming-conference 75
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Ϟϒͷམͱ݀͠
• ฏۉʹͳ͍ͬͯͳ͍͔ʁ
• ׂ୲ͳ͍͔ʁ
• ࠷ߴ্͕͍ͬͯΔ͔ʁ
• ϞϒϫʔΫثͷҰͭ
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ใڞ༗ͱυΩϡϝϯςʔγϣϯ
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Flow and Stock
• Twitter ͱ YouTube
• Chat ͱ Wiki
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όέʔγϣϯͷࣸਅ
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• FlowΛSlackʹ͢
• FlowΛesaʹ͢
• StockΛesaʹ͢
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ܭըͱ;Γ͔͑Γ
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͍αΠΫϧ
• يಓमਖ਼
• ҙࢥܾఆ
• ਐḿ
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5ஈ֊ͷҙࢥܾఆ
!
શʹಉҙ
"
Α͍ͱࢥ͏
#
ͬͯΈΔ͔
$
Ҿ͔͔ͬΔ͚ͲɺͬͯΈΔ͔..
%
ࢍಉͰ͖ͳ͍ͳ
&
ઈରʹμϝͩ
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ਐḿ
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Working software is the primary
measure of progress.
Principles behind the Agile Manifesto https://agilemanifesto.org/iso/en/principles.html 88
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Appendix
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ϚΠΫϩαʔϏε
• Ί͓ͯ͜͏
• ४උͰ͖Δ
ϚΠΫϩαʔϏεΞʔΩςΫνϟ https://www.oreilly.co.jp/books/9784873117607/ 90
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ഊࢭ
• ੍ࣗମͷ
• ݱߦιϑτΣΞͷ༷
• ӡ༻্ͷ੍
• etc
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Beware the Share.
Check Your context.
— Udi Dahan
ϓϩάϥϚ͕Δ͖97ͷ͜ͱ https://www.oreilly.co.jp/books/9784873114798/ 92
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·ͱΊ
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• ࠎ֨ʹͳΔҰຊಓΛݟ͚ͭग़͢
• ֆΛඳ͘ɺݴ༿ʹ͢Δ
• ಈ࡞͢ΔίʔυΛॻ͘
• ࣦഊ͠ͳ͕ΒҭͯΔ
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ϞσϧΛҭͯΔ
࡞Γͳ͕ΒܾΊ͍ͯ͘
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MAKE MISTAKS FASTR
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Usable
Feasible
Valuable
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