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
2. ࣗ೐౟ਝযۆ? • ࢎۈ੉ ೞ٘ਝযܳ ز੘दఃӝ ਤ೧ ࢎਊೞח ࣻױ • ੿ࠁܳ ੋध, ࠙ࢳ, ੷੢ೞח ৉ೡਸ ࣻ೯ • ஹೊఠ৬ ࣗాೞݴ ই੉٣যܳ पഅೞҊ ׮নೠ ޙઁܳ ೧Ѿೞח بҳ
3. ࣗ೐౟ਝযۆ?
4. ࣗ೐౟ਝযۆ? • ӝמ੸ ࠙ܨ
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, ...
6. ࣗ೐౟ਝয ѐߊ੉ۆ? • ೐۽షఋੑ(prototype) • োҳ ࢤ࢑ޛ(R&D) • ࢚ಿചػ ಁః૑(production)
7. ࣗ೐౟ਝয ѐߊ੉ۆ? • ୭ઙ ࢎਊ੗о ࢎਊೡ ࣻ ੓ח ࣻળ੄ ৮ࢿبо ы୶য૑ח दӝ ৘࢚ • ৘࢚؀۽ ੘زغ૑ ঋѢա ৘࢚ೞ૑ ঋও؍ য়ز੘ਸ ୭ࣗച
8. ࣗ೐౟ਝয ѐߊ੉ۆ? • ୭ઙ ࢎਊ੗о ࢎਊೡ ࣻ ੓ח ࣻળ੄ ৮ࢿبо ы୶য૑ח दӝ ৘࢚ • ৘࢚؀۽ ੘زغ૑ ঋѢա ৘࢚ೞ૑ ঋও؍ য়ز੘ਸ ୭ࣗച ࢤ࢑ࢿ ಿ૕
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
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
11. ࣗ೐౟ਝয ѐߊ੉ۆ? • ױ҅੸ ೐۽ࣁझ - ࣗ೐౟ਝয ޙઁܳ ৈ۞ ױ҅۽ ա־য ೧Ѿೞח ߑध ਃҳࢎ೦ ࠙ࢳ ࢸ҅ ҳഅ పझ౟ ਬ૑ࠁࣻ ҅ദ
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۽
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
14. ࣗ೐౟ਝয ѐߊ੉ۆ? • গ੗ੌ ࣗ೐౟ਝয ѐߊ ߑߨۿ - Extreme Programming(XP) ‣ Test-Driven Development ‣ Pair Programming ‣ Continuous Integration ‣ Refactoring
15. ࣗ೐౟ਝয ѐߊ੉ۆ? • গ੗ੌ ࣗ೐౟ਝয ѐߊ ߑߨۿ - Scrum ‣ Backlog ‣ Sprint (Iteration) ‣ Scrum Master ‣ Scrum Meeting
16. ࣗ೐౟ਝয ѐߊ੉ۆ? • গ੗ੌ ࣗ೐౟ਝয ѐߊ ߑߨۿ - Kanban ‣ Card ‣ WIP Limit ‣ Kaizen
17. ࣗ೐౟ਝয ѐߊ੉ۆ? • গ੗ੌ ࣗ೐౟ਝয ѐߊ ߑߨۿ - Lean ‣ MVP ‣ Build - Measure - Learn
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 ೙ਃ
19. ਃҳࢎ೦ ࠙ࢳ
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׮.
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
22. ਃҳࢎ೦ ࠙ࢳ • Oven(https://ovenapp.io)ਸ ੉ਊೠ ೐۽షఋ੉ೝ पण
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
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׮.
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)
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׮.
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
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
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