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DDD BoundedContext
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petitviolet
November 22, 2017
Programming
140
1
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DDD BoundedContext
What is `Bounded Context` in Domain Driven Design(DDD)
petitviolet
November 22, 2017
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Transcript
#PVOEFE$POUFYU ࠶ೖ !QFUJUWJPMFU
͓͠ͳ͕͖ w #PVOEFE$POUFYUͬͯͳʹ w Կ͕خ͍͠ʁ w #PVOEFE$POUFYUͷΓํ w ྫ͑ w
$POUFYUͷ౷߹ w ·ͱΊ
#PVOEFE$POUFYU ͬͯͳʹʁ
ఆٛͨ͠Ϟσϧ͕ ద༻͞ΕΔείʔϓ
#PVOEFE$POUFYUͱ w ఆٛͨ͠Ϟσϧ͕ద༻͞ΕΔείʔϓ w ϞσϧͷதʹͦͷϞσϧͷ֓೦ɺϧʔϧɺ ϢϏΩλεݴޠؚ͕·Ε͍ͯΔ w ผͷ$POUFYUʹ͓͍ͯద༻͞Εͳ͍ w $POUFYUͰϞσϧݫີʹҰ؏ੑΛอͭ
#PVOEFE$POUFYU Կ͕خ͍͠ʁ
͍είʔϓͰϞσϧΛద༻ WT ڱ͍είʔϓͰϞσϧΛద༻
͍είʔϓͰϞσϧΛద༻ WT ڱ͍είʔϓͰϞσϧΛద༻ ͲͪΒ͕ɺϞσϧ͕໌֬ʹͳΔ͔ ͲͪΒ͕ɺҰ؏ੑΛอ͍͔ͪ͢
#PVOEFE$POUFYUԿ͕خ͍͠ʁ w ʮ$POUFYUʯͱ͍͏ڥքΛҾ͘͜ͱʹΑͬͯɺԿ ʹҰ؏ੑΛ࣋ͨͤΔ͖Ͱ͋Δͷ͔͕໌֬ʹͳΔ w ࣗ༝ͳੈքΑΓదͳ੍ w ֎෦ͷ$POUFYUʹҙࣝΛ͚Δඞཁ͕ͳ͘ͳΓɺ ϞσϧΛ७ਮʹอͭ͜ͱ͕ग़དྷΔ
#PVOEFE$POUFYUԿ͕خ͍͠ʁ w $POUFYUͷଘࡏͰΤϯδχΞͷ͕࢟มΘΔʁ w Ϟσϧ͕ద༻͞ΕΔείʔϓ͕ڱ·Δ w Ұ؏ੑΛอ͖ͭείʔϓڱ·Δ w ڱ͍είʔϓ͔ͩΒͦ͜ݫີʹकΔ
#PVOEFE$POUFYU ͷΓํ
ͲΜͳ୯ҐͰΕ͍͍ʁ ΤϯςΟςΟԿݸ͘Β͍ʁ
ਖ਼ղͳ͍
ϢϏΩλεݴޠʹͳ͍Α͏ͳ֓೦Λ ϞσϧʹऔΓࠐΜͩΓɺ ͋Δ͍େࣄͳ֓೦Λ֎ʹग़ͨ͠Γ ͠ͳ͍Α͏ʹؾΛ͚Α͏ɻ
Ͳ͏ͬͯ#PVOEFE$POUFYUΛΔ͔ w ཧతʹΘ͚Δ w νʔϜฤ w ίʔυϕʔε w σʔλϕʔεεΩʔϚ w
FUD w $POUFYUࣗʹϢϏΩλεͳ໊લΛ͚ͭΔ w ଞͷ$POUFYUͱ໌֬ʹ۠ผ͢Δ
ͨͱ͑ ग़൛ࣾͷۀ
ग़൛ࣾͷۀ ॻ੶ͷ༰ΛҊͱͯ͠·ͱΊɺىҊ͢Δ ஶऀͱग़൛ܖΛ݁Ϳ ॻ੶ͷࣥචͱฤूͷϓϩηεΛཧ͢Δ ॻ੶ͷஸૠֆΛσβΠϯ͢Δ ॻ੶Λଞͷݴޠʹ༁͢Δ ࢴͷॻ੶ిࢠ൛Λ࡞͢Δ ॻ੶Λએ͢Δ ॻ੶Λ࠶ൢۀऀʹൢച͢Δ ࢴͷॻ੶Λ࠶ൢۀऀސ٬ʹग़ՙ͢Δ
ग़൛ࣾͷۀ ॻ੶ͷ༰ΛҊͱͯ͠·ͱΊɺىҊ͢Δ ஶऀͱग़൛ܖΛ݁Ϳ ॻ੶ͷࣥචͱฤूͷϓϩηεΛཧ͢Δ ॻ੶ͷஸૠֆΛσβΠϯ͢Δ ॻ੶Λଞͷݴޠʹ༁͢Δ ࢴͷॻ੶ిࢠ൛Λ࡞͢Δ ॻ੶Λએ͢Δ ॻ੶Λ࠶ൢۀऀʹൢച͢Δ ࢴͷॻ੶Λ࠶ൢۀऀސ٬ʹग़ՙ͢Δ
શͯผͷ$POUFYU
ग़൛ࣾͷۀ ॻ੶ͷ༰ΛҊͱͯ͠·ͱΊɺىҊ͢Δ ஶऀͱग़൛ܖΛ݁Ϳ ॻ੶ͷࣥචͱฤूͷϓϩηεΛཧ͢Δ ॻ੶ͷஸૠֆΛσβΠϯ͢Δ ॻ੶Λଞͷݴޠʹ༁͢Δ ࢴͷॻ੶ిࢠ൛Λ࡞͢Δ ॻ੶Λએ͢Δ ॻ੶Λ࠶ൢۀऀʹൢച͢Δ ࢴͷॻ੶Λ࠶ൢۀऀސ٬ʹग़ՙ͢Δ
ग़൛ࣾͷۀ ॻ੶ͷ༰ΛҊͱͯ͠·ͱΊɺىҊ͢Δ ஶऀͱग़൛ܖΛ݁Ϳ ॻ੶ͷࣥචͱฤूͷϓϩηεΛཧ͢Δ ॻ੶ͷஸૠֆΛσβΠϯ͢Δ ॻ੶Λଞͷݴޠʹ༁͢Δ ࢴͷॻ੶ిࢠ൛Λ࡞͢Δ ॻ੶Λએ͢Δ ॻ੶Λ࠶ൢۀऀʹൢച͢Δ ࢴͷॻ੶Λ࠶ൢۀऀސ٬ʹग़ՙ͢Δ
ʮॻ੶ʯ શ෦ಉ͡ͷʁ
ग़൛ࣾͷۀ w ʮॻ੶ʯ w ಉ͡ݴ༿͚ͩͲಉ͡ͷͰͳ͍ w ֤$POUFYUʹ͓͍ͯఆ͕ٛҧ͏ w ࣥචϓϩηεͷॻ੶ w
ߘɺίϝϯτɺߍਖ਼ɺFUD w ग़ՙϓϩηεͷॻ੶ w ݿͷҐஔɺࡏݿɺαΠζɺFUD w ಉࣝ͡ผࢠΛڞ༗ͯ͠Մೳʹ͢Δ͕ɺ ֤$POUFYUʹ͓͚Δʮॻ੶ʯΛද͢ϞσϧҟͳΔ
$POUFYUͷ౷߹
$POUFYUͷ౷߹ w #PVOEFE$POUFYUͰۀΛΓ͚ͨ w ͡Ό͋Ͳ͏ͬͯ࿈ܞ͢Δ͔ w ίϯςΩετϚοϓ w ౷߹ύλʔϯ
ίϯςΩετϚοϓ
ίϯςΩετϚοϓ w ϓϩδΣΫτʹؔΘΔڥք͚ΒΕͨίϯςΩε τͱͦΕΒͷ౷߹ؔΛࣔ͢ͷ w طଘͷγεςϜͷશΛѲͰ͖Δ w ίϛϡχέʔγϣϯ͕ඞཁͳνʔϜΛಛఆ͢Δ w 6QTUSFBN%PXOTUSFBN
w ্ྲྀԼྲྀ
$POUFYU౷߹ύλʔϯ
$POUFYU౷߹ύλʔϯ w ύʔτφʔγοϓ w ୯ҰͷίϯςΩετ w ڞ༗Χʔωϧ w ެ։ϗεταʔϏε w
ސ٬ڙڅऀ w ॱԠऀ w ഊࢭ w ผʑͷಓ
$POUFYU౷߹ύλʔϯ w ύʔτφʔγοϓ w ୯ҰͷίϯςΩετ w ڞ༗Χʔωϧ w ެ։ϗεταʔϏε w
ސ٬ڙڅऀ w ॱԠऀ w ഊࢭ w ผʑͷಓ ޭࣦഊͷӡ໋Λڞʹ͢Δ νʔϜؒͰڠྗؔΛங͘ඞཁ͕͋Δ
$POUFYU౷߹ύλʔϯ w ύʔτφʔγοϓ w ୯ҰͷίϯςΩετ w ڞ༗Χʔωϧ w ެ։ϗεταʔϏε w
ސ٬ڙڅऀ w ॱԠऀ w ഊࢭ w ผʑͷಓ ίϯςΩετ͕ͭɻҎ্ɻ
$POUFYU౷߹ύλʔϯ w ύʔτφʔγοϓ w ୯ҰͷίϯςΩετ w ڞ༗Χʔωϧ w ެ։ϗεταʔϏε w
ސ٬ڙڅऀ w ॱԠऀ w ഊࢭ w ผʑͷಓ ͭͷίϯςΩετΛ ෳͷίϯςΩετ͕ࢀর
$POUFYU౷߹ύλʔϯ w ύʔτφʔγοϓ w ୯ҰͷίϯςΩετ w ڞ༗Χʔωϧ w ެ։ϗεταʔϏε w
ސ٬ڙڅऀ w ॱԠऀ w ഊࢭ w ผʑͷಓ ΞΫηε͢ΔͨΊͷ ϓϩτίϧΛެ։͢Δ
$POUFYU౷߹ύλʔϯ w ύʔτφʔγοϓ w ୯ҰͷίϯςΩετ w ڞ༗Χʔωϧ w ެ։ϗεταʔϏε w
ސ٬ڙڅऀ w ॱԠऀ w ഊࢭ w ผʑͷಓ ্ྲྀͱԼྲྀʹΘ͔Εͯ Լྲྀͷ݁Ռʹ্ྲྀ͕ίϛοτ͢Δ
$POUFYU౷߹ύλʔϯ w ύʔτφʔγοϓ w ୯ҰͷίϯςΩετ w ڞ༗Χʔωϧ w ެ։ϗεταʔϏε w
ސ٬ڙڅऀ w ॱԠऀ w ഊࢭ w ผʑͷಓ ্ྲྀͱԼྲྀʹΘ͔ΕΔ͕ Լྲ্ྀྲྀʹ߹ΘͤΔ͔͠ͳ͍
$POUFYU౷߹ύλʔϯ w ύʔτφʔγοϓ w ୯ҰͷίϯςΩετ w ڞ༗Χʔωϧ w ެ։ϗεταʔϏε w
ސ٬ڙڅऀ w ॱԠऀ w ഊࢭ w ผʑͷಓ ্ྲྀΛִ͢ΔͨΊͷ มΛ௨ͯ͠ Լྲ্ྀ͕ྲྀΛར༻͢Δ
$POUFYU౷߹ύλʔϯ w ύʔτφʔγοϓ w ୯ҰͷίϯςΩετ w ڞ༗Χʔωϧ w ެ։ϗεταʔϏε w
ސ٬ڙڅऀ w ॱԠऀ w ഊࢭ w ผʑͷಓ ౷߹ఘΊΔ
$POUFYU౷߹ύλʔϯ w ύʔτφʔγοϓ w ୯ҰͷίϯςΩετ w ڞ༗Χʔωϧ w ެ։ϗεταʔϏε w
ސ٬ڙڅऀ w ॱԠऀ w ഊࢭ w ผʑͷಓ ౷߹ύλʔϯΛࢀߟʹ ίϯςΩετɾνʔϜͷؔΛ໌֬ʹͯ͠ ͏·͘࿈ܞ͍ͯ͘͜͠ͱ͕େࣄ
·ͱΊ
#PVOEFE$POUFYU ҰମͳΜͩͬͨͷ͔
#PVOEFE$POUFYUҰମͳΜͩͬͨͷ͔ w ఆٛ͢ΔϞσϧ͕ద༻͞ΕΔείʔϓ w ϞσϧΛΑΓ໌֬ʹ͢ΔͨΊ w ίϯςΩετϚοϓΛඳ͘ w શମΛ၆ᛌ͠ɺίϛϡχέʔγϣϯ͢Δ w
ίϯςΩετΛ౷߹͢Δ w Ͳ͏࿈ܞ͢Δ͔Λ໌Β͔ʹ
େنγεςϜ։ൃΛ νʔϜʹΘ͔Εͯ ࿈ܞ͍ͯͨ͘͠Ίͷ֓೦
֤νʔϜ Ϟσϧίϛϡχέʔγϣϯʹ͍ͭͯ ߟ͑Δ͜ͱ͕ݮΔ WT ཧతʹΘ͔ΕΔͷͰ ௐͱ͔σϓϩΠͱ͔ӡ༻ͱ͔Ͱ ߟ͑Δ͜ͱ͕૿͑Δ
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