웹 어플리케이션 설계와 구현 I - 요구사항 분석에 관하여

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1. ਢ য೒ܻா੉࣌ ࢸ҅৬ ҳഅ I
   - ਃҳࢎ೦ ࠙ࢳী ҙೞৈ
   2018.07.30
   
   @ೠࣁࢎ੉ߡࠁউҊ١೟Ү
   
   ൤ٚ౟ۑ CTO ೠ݅ઙ
   

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2. ࣗ೐౟ਝযۆ?
   • ࢎۈ੉ ೞ٘ਝযܳ ز੘दఃӝ ਤ೧ ࢎਊೞח ࣻױ
   
   • ੿ࠁܳ ੋध, ࠙ࢳ, ੷੢ೞח ৉ೡਸ ࣻ೯
   
   • ஹೊఠ৬ ࣗాೞݴ ই੉٣যܳ पഅೞҊ ׮নೠ ޙઁܳ ೧Ѿೞח بҳ
   

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3. ࣗ೐౟ਝযۆ?
   

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4. ࣗ೐౟ਝযۆ?
   • ӝמ੸ ࠙ܨ
   

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5. ࣗ೐౟ਝযۆ?
   • ੹׳ ߑधী ٮܲ ࠙ܨ
   
   - ಁః૑ SW
   
   ‣ SW স୓ীࢲ ੗୓੸ਵ۽ ࢸ҅ೞৈ ࢚স੸ਵ۽ ౸ݒೞח ࣗ೐౟ਝয
   
   ‣ MS ਦب਋, MS য়ೖझ, ೠஹয়ೖझ, যب࠺ CC, ...
   
   - ઱ޙഋ SW
   
   ‣ ౠ੿ Ҋё(ӝস)੄ ਃҳܳ ݅઒दఃӝ ਤ೧ ઁ੘ೠ ࣗ೐౟ਝয
   
   ‣ SI(दझమ ా೤) ೐۽ં౟, ੐߬٣٘ SW, ...
   

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6. ࣗ೐౟ਝয ѐߊ੉ۆ?
   • ೐۽షఋੑ(prototype)
   
   • োҳ ࢤ࢑ޛ(R&D)
   
   • ࢚ಿചػ ಁః૑(production)
   

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7. ࣗ೐౟ਝয ѐߊ੉ۆ?
   • ୭ઙ ࢎਊ੗о ࢎਊೡ ࣻ ੓ח ࣻળ੄ ৮ࢿبо ы୶য૑ח दӝ ৘࢚
   
   • ৘࢚؀۽ ੘زغ૑ ঋѢա ৘࢚ೞ૑ ঋও؍ য়ز੘ਸ ୭ࣗച
   

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8. ࣗ೐౟ਝয ѐߊ੉ۆ?
   • ୭ઙ ࢎਊ੗о ࢎਊೡ ࣻ ੓ח ࣻળ੄ ৮ࢿبо ы୶য૑ח दӝ ৘࢚
   
   • ৘࢚؀۽ ੘زغ૑ ঋѢա ৘࢚ೞ૑ ঋও؍ য়ز੘ਸ ୭ࣗച
   ࢤ࢑ࢿ
   ಿ૕
   

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9. ࣗ೐౟ਝয ѐߊ੉ۆ?
   • “ࣗ೐౟ਝয ਤӝ(software crisis)”
   
   - ੿ഛೞҊ ੉೧ೡ ࣻ ੓Ҋ, Ѩૐ оמೠ ஹೊఠ ೐۽Ӓ۔ਸ ੘ࢿೞח Ѫ੉ ঴݃ա য
   ۰਍оܳ ڷೞח ݈
   
   - दझమ ؀ӏݽചী ٮܲ ࣗ೐౟ਝয੄ न܉ࢿ ੷ೞ, ѐߊ࠺੄ ૐ؀, ҅ദ੄ ૑ো
   
   - ؀਽ ߑউ
   
   ‣ ҕ೟੸ ੽Ӕ(׮নೠ ߑߨۿ)
   
   ‣ ಴ળച(੤ࢎਊࢿ ૐ؀, ݽٕച)
   
   ‣ ੗زച بҳ ࢎਊ
   

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10. ࣗ೐౟ਝয ѐߊ੉ۆ?
    • “਷ࡄ ఍ജ਷ হ׮(No silver bullet)”
    
    - Frederick P. Brooks, 1986.
    
    - ࣗ೐౟ਝয ѐߊ੄ ࠂ੟ࢿਸ ೠߣী ೧Ѿೡ ݃ߨ(਷ࡄ ఍ജ)਷ হ׮
    
    - ؀਽ߑউ
    
    ‣ ࣗ೐౟ਝযܳ ٜ݅૑ ঋҊ, ࣗ೐౟ਝয ઁಿਸ ҳݒೠ׮
    
    ‣ ਃҳࢎ೦ ҳ୓ച, ࡅܲ ೐۽షఋ੉ೝ
    
    ‣ ੼૓੸ ѐߊ
    

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11. ࣗ೐౟ਝয ѐߊ੉ۆ?
    • ױ҅੸ ೐۽ࣁझ
    
    - ࣗ೐౟ਝয ޙઁܳ ৈ۞ ױ҅۽ ա־য ೧Ѿೞח ߑध
    ਃҳࢎ೦ ࠙ࢳ
    ࢸ҅
    ҳഅ
    పझ౟
    ਬ૑ࠁࣻ
    ҅ദ
    

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12. ࣗ೐౟ਝয ѐߊ੉ۆ?
    • গ੗ੌ ࣗ೐౟ਝয ѐߊ ߑߨۿ
    
    - જ਷ Ѫਸ ࡅܰҊ խ࠺হѱ ѐߊೞח Ѫਸ оמೞѱ
    
    - “о߶਍ ೐۽ࣁझ”
    
    - less document-oriented, code-oriented
    
    - ੿ഋ੸੉Ѣա ৘ஏী ੄ೠ Ѫ੉ ইצ adaptive ೞҊ ҃೷੸ਵ۽
    

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13. ࣗ೐౟ਝয ѐߊ੉ۆ?
    • গ੗ੌ ࣗ೐౟ਝয ѐߊ ߑߨۿ
    
    - ׮਺ਸ о஖੓ѱ:
    
    ‣ ҕ੿җ بҳࠁ׮ ѐੋҗ ࢚ഐ੘ਊਸ
    
    ‣ ನҚ੸ੋ ޙࢲࠁ׮ ੘زೞח ࣗ೐౟ਝযܳ
    
    ‣ ҅ড ഈ࢚ࠁ׮ Ҋёҗ੄ ഈ۱ਸ
    
    ‣ ҅ദਸ ٮܰӝࠁ׮ ߸ചী ؀਽ೞӝܳ
    

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14. ࣗ೐౟ਝয ѐߊ੉ۆ?
    • গ੗ੌ ࣗ೐౟ਝয ѐߊ ߑߨۿ
    
    - Extreme Programming(XP)
    
    ‣ Test-Driven Development
    
    ‣ Pair Programming
    
    ‣ Continuous Integration
    
    ‣ Refactoring
    

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15. ࣗ೐౟ਝয ѐߊ੉ۆ?
    • গ੗ੌ ࣗ೐౟ਝয ѐߊ ߑߨۿ
    
    - Scrum
    
    ‣ Backlog
    
    ‣ Sprint (Iteration)
    
    ‣ Scrum Master
    
    ‣ Scrum Meeting
    

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16. ࣗ೐౟ਝয ѐߊ੉ۆ?
    • গ੗ੌ ࣗ೐౟ਝয ѐߊ ߑߨۿ
    
    - Kanban
    
    ‣ Card
    
    ‣ WIP Limit
    
    ‣ Kaizen
    

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17. ࣗ೐౟ਝয ѐߊ੉ۆ?
    • গ੗ੌ ࣗ೐౟ਝয ѐߊ ߑߨۿ
    
    - Lean
    
    ‣ MVP
    
    ‣ Build - Measure - Learn
    

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18. ਃҳࢎ೦ ࠙ࢳ
    • ‘যڌѱ(How)’о ইפۄ ‘ޖ঺ਸ(What)’ী ୡ੼
    
    • ‘೧Ѿߑߨ’ ઁदо ইפۄ ‘ޙઁ’ܳ ੿੄
    
    • ࣗ೐౟ਝযо ޖ঺ਸ ਤ೧ ೙ਃೠ૑ ੿ഛ൤ ੉೧
    
    • ੉೧ೠ Ѫਸ ׮ܲ ѐߊ੗ীѱ ੿ഛ൤ ੹׳
    
    • दझమ੄ ѐߊ ߑೱ ҙܻܳ ਤ೧ ೙ਃ
    

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19. ਃҳࢎ೦ ࠙ࢳ
    

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20. ਃҳࢎ೦ ࠙ࢳ
    • ࢎਊ੗ח ز੘ೞח SWܳ ࠁӝ ੹ীח पઁ۽ ੗न੉ ޖ঺ਸ ਗೞח૑ ঌ૑ ޅೠ׮.
    
    • ߓ҃ ૑ध੄ ର੉, ਊয ࠛੌ஖ ١ ੄ࢎ ࣗా੄ য۰਑ਸ ೧Ѿ೧ঠ ೠ׮.
    
    • ੌߑ੸ੋ ੄ࢎࣗాࠁ׮ ҕхਸ ా೧ࢲ SWо ೧Ѿೞ۰ח ޙઁܳ ੉೧ೠ׮.
    
    • ࢎਊ੗৬ ѐߊ੗ р੄ ੉Ѽ ର੉ܳ ગഃ ࢲ۽ ժٙ оמೠ ݾ಴ܳ ࣁਕঠ ೠ׮.
    

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21. ਃҳࢎ೦ ࠙ࢳ
    • ਃҳࢎ೦ ࣻ૘(୶୹) ߑߨ
    
    - ੋఠ࠭: ૒੽ ؀ചܳ ా೧ ࣗ೐౟ਝযо যڌѱ ز੘೧ঠ ೞח૑ী ؀ೠ ੄Ѽਸ ٛ
    ח ߑߨ
    
    - ҙ଴: ࣗ೐౟ਝযо ೙ਃೠ അ੢ীࢲ সޖ ژח ೐۽ࣁझо যڃ ߑߨਵ۽ ૓೯غҊ
    ੓ח૑ ૒੽ ૑ெࠁח ߑߨ
    
    - ࠳ۨੋझష߁: ࣗࣻ੄ ੋਗ੉ ӏ஗ਸ ࣁਕ ৈ۞ ই੉٣যо ઁदؼ ࣻ ੓ب۾ ޷౴
    ਸ ૓೯ೞৈ ೖ٘ߔਸ ੿ܻೞח ߑߨ
    
    - ೐۽షఋ੉ೝ: ৘࢚غח ઁಿ੄ ੘زೞח ݽणਸ ݽഋਵ۽ ٜ݅যࢲ ޷ܻ ೖ٘ߔਸ
    ߉ӝ ਤೠ ߑߨ
    

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22. ਃҳࢎ೦ ࠙ࢳ
    • Oven(https://ovenapp.io)ਸ ੉ਊೠ ೐۽షఋ੉ೝ पण
    

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23. ਃҳࢎ೦ ࠙ࢳ
    • ਃҳࢎ೦ ݽ؛݂
    
    - ҳઑ੸ ࠙ࢳ(structured analysis) ߑߨ: ؘ੉ఠ ൒ܴਸ ઺बਵ۽ ݽٕചೞৈ ӝמ
    ҙ੼ਵ۽ दझమਸ ಴അೞח ߑߨ
    
    - ё୓૑ೱ ࠙ࢳ(object-oriented analysis) ߑߨ: ؘ੉ఠ৬ ೐۽ࣁझܳ ೣԋ ஭ङച
    ೠ ё୓ܳ ױਤ۽ दझమਸ ಴അೞח ߑߨ
    

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24. ਃҳࢎ೦ ࠙ࢳ
    • ё୓૑ೱ ࠙ࢳ(Object Oriented Analysis, OOA)
    
    - ࢎਊ੗੄ ਃҳࢎ೦ਸ ࠙ࢳೞৈ ਃҳػ ޙઁ৬ ҙ۲ػ ݽٚ ௿ېझ(ё୓), ҙ۲ ࣘࢿ
    ߂ ো࢑, ё୓ р੄ ҙ҅١ਸ ੿੄ೞৈ ݽ؛݂ೞח Ѫ
    
    - ޙઁ ৔৉ীࢲ ё୓ա ѐ֛ٜਸ ଺ইࢲ ӝࣿೞחؘ ઺੼ਸ ك׮.
    

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25. ё୓૑ೱ ࣗ೐౟ਝয ѐߊ
    • ҳઑ੸ SW ѐߊ ߑߨۿ
    
    - ҳઑ੸ ࠙ࢳ(Structured Analysis)
    
    - ҳઑ੸ ࢸ҅(Structured Design)
    
    - ҳઑ੸ ೐۽Ӓې߁(Structured
    Programming)
    • ё୓૑ೱ SW ѐߊ ߑߨۿ
    
    - ё୓૑ೱ ࠙ࢳ(Object Oriented
    Analysis, OOA)
    
    - ё୓૑ೱ ࢸ҅(Object Oriented
    Design, OOD)
    
    - ё୓૑ೱ ೐۽Ӓې߁(Object
    Oriented Programming, OOP)
    

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26. ё୓૑ೱ ࣗ೐౟ਝয ѐߊ
    • ё୓૑ೱ ೐۽Ӓې߁(Object Oriented Programming, OOP)
    
    - ೐۽Ӓ۔ਸ ৈ۞ ѐ੄ ة݀ػ ױਤ, ૊ “ё୓”ٜ੄ ݽ੐ਵ۽ ౵ঈೞҊ੗ ೞח Ѫ
    
    - “ஹೊఠ ೐۽Ӓ۔ਸ അप ࣁ҅ী ࡁ؀য ൑ղմ ѐߊ ߑߨ”
    
    - ೐۽Ӓې߁ਸ ؊ ߓ਋ӝ औѱ ೞҊ ࣗ೐౟ਝয ѐߊҗ ࠁࣻܳ рಞೞѱ ೞݴ, ࠁ׮
    ૒ҙ੸ੋ ௏٘ ࠙ࢳਸ оמೞѱ ೞח ੢੼ਸ ыҊ ੓׮.
    
    - ೐۽Ӓ۔ਸ ਬোೞҊ ߸҃੉ ਊ੉ೞѱ ٜ݅ӝ ٸޙী ؀ӏݽ ࣗ೐౟ਝয ѐߊী ݆
    ੉ ࢎਊػ׮.
    

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27. ё୓૑ೱ ࣗ೐౟ਝয ѐߊ
    • ё୓૑ೱ ೐۽Ӓې߁(Object Oriented Programming, OOP)
    
    - ё୓(object)
    ‣ data + operation on data
    
    ‣ instance of class
    
    - ௿ېझ(class)
    ‣ description, abstraction
    
    - ݫࣁ૑(message)
    ‣ ё୓ р ࢚ഐ ੘ਊ(ݫࣗ٘ ഐ୹) ࣻױ
    

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28. ё୓૑ೱ ࣗ೐౟ਝয ѐߊ
    • ё୓૑ೱ ೐۽Ӓې߁(Object Oriented Programming, OOP)
    
    - ୶࢚ച(abstraction)
    ‣ ࢚ࣁೠ ղਊਸ ऀӝҊ ೨ब੸ੋ ࠗ࠙(ౠ૚)ਸ ъઑೞৈ ݽ؛ച
    
    - ஭ङച(encapsulation)
    ‣ ੿ࠁ ਷ץਸ ా೧ ё୓ р Ѿ೤بܳ хࣗदெ ਬ૑ࠁࣻ ਊ੉, ੤ࢎਊࢿ ૐ؀
    
    - ࢚ࣘࢿ(inheritance)
    ‣ ೞਤ ఋੑীࢲ ࢚ਤ ఋੑ੄ ӝמਸ ࢎਊೞৈ ഛ੢ೡ ࣻ ੓ب۾ ೲਊ
    
    - ׮ഋࢿ(polymorphism)
    ‣ ೞਤ ఋੑীࢲ ࢚ਤ ఋੑ੉ ઁҕೞח ߑߨਸ ా೧ Ҋਬೠ ز੘ਸ ࣻ೯ оמ
    

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29. Reference
    
    https://www.spri.kr/posts/view/21850?code=annual_reports
    
    https://en.wikipedia.org/wiki/Software_crisis
    
    https://en.wikipedia.org/wiki/No_Silver_Bullet
    
    https://johngrib.github.io/wiki/No-Silver-Bullet/
    
    https://en.wikipedia.org/wiki/Systems_development_life_cycle
    
    https://en.wikipedia.org/wiki/Agile_software_development
    
    http://cjmyun.tripod.com/Knowledgebase/ConceptsOfObjectOriented.htm
    
    https://www.slideshare.net/plusjune/ss-46109239
    
    

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