๋ณธ๋ฌธ ๋ฐ”๋กœ๊ฐ€๊ธฐ

๐Ÿ“š ์ „๊ณต ๊ณต๋ถ€/์†Œํ”„ํŠธ์›จ์–ด๊ณตํ•™16

[์†Œํ”„ํŠธ์›จ์–ด๊ณตํ•™] 8์žฅ. ์„ค๊ณ„ ๊ฐœ๋… 8์žฅ. ์„ค๊ณ„ ๊ฐœ๋… Design Process (์„ค๊ณ„ ํ”„๋กœ์„ธ์Šค) SW ์„ค๊ณ„๋Š” ์š”๊ตฌ์‚ฌํ•ญ์ด SW๋ฅผ ๊ตฌ์„ฑํ•˜๊ธฐ ์œ„ํ•œ ์ฒญ์‚ฌ์ง„์œผ๋กœ ๋ณ€ํ™˜๋˜๋Š” ๋ฐ˜๋ณต์ ์ธ ๊ณผ์ •์ด๋‹ค. ์ข‹์€ ๋””์ž์ธ์„ ์œ„ํ•œ 3๊ฐ€์ง€ ํŠน์„ฑ ๋ถ„์„๋ชจ๋ธ์— ํฌํ•จ๋œ ๋ชจ๋“  ๋ช…์‹œ์  ์š”๊ตฌ์‚ฌํ•ญ์„ ๊ตฌํ˜„ํ•ด์•ผ ํ•˜๋ฉฐ, ๊ณ ๊ฐ์ด ์›ํ•˜๋Š” ๋ชจ๋“  ์•”๋ฌต์  ์š”๊ตฌ์‚ฌํ•ญ์„ ์ˆ˜์šฉํ•ด์•ผ ํ•จ. ๊ฐœ๋ฐœ์ž์™€ ํ…Œ์Šคํ„ฐ ๋“ฑ์„ ์œ„ํ•ด ์ดํ•ดํ•˜๊ธฐ ์‰ฌ์šด ๊ฐ€์ด๋“œ๊ฐ€ ๋˜์–ด์•ผ ํ•จ. ๊ตฌํ˜„ ๊ด€์ ์—์„œ ๋ฐ์ดํ„ฐ, ๊ธฐ๋Šฅ ๋ฐ ํ–‰๋™ ์˜์—ญ์„ ๋‹ค๋ฃจ๋ฉด์„œ SW์˜ ์ „์ฒด์ ์ธ ๊ทธ๋ฆผ์„ ์ œ๊ณตํ•ด์•ผ ํ•จ. ๐Ÿ’ก Fundamental Design Concepts (๊ธฐ๋ณธ ์„ค๊ณ„ ๊ฐœ๋…) Abstraction - ์ถ”์ƒํ™” (๋ฐ์ดํ„ฐ,์ ˆ์ฐจ,๋™์ž‘) Architecture - ์•„ํ‚คํ…์ฒ˜ (SW์˜ ์ „๋ฐ˜์  ๊ตฌ์กฐ) Patterns - ํŒจํ„ด (๊ฒ€์ฆ๋œ ์„ค๊ณ„ ์†”๋ฃจ์…˜์˜ ๋ณธ์งˆ ์ „๋‹ฌ) Modularity - .. 2023. 4. 23.
[์†Œํ”„ํŠธ์›จ์–ด๊ณตํ•™] ์‹œ์Šคํ…œ ์†Œ๊ฐœ : what is system? ์‹œ์Šคํ…œ ์†Œ๊ฐœ System ๊ณตํ•™์  ๊ด€์  : ์ž…๋ ฅ๊ณผ ์ถœ๋ ฅ์ด ์žˆ๋Š”๊ฒƒ ์ปดํ“จํ„ฐ๊ณผํ•™ ๊ด€์  : ์ฟผ๋ฆฌ ์‹œ ์‘๋‹ตํ•  ์ˆ˜ ์žˆ๋Š” ๋ฐ์ดํ„ฐ ์›๋ณธ ๋‹ซํžŒ ์‹œ์Šคํ…œ๊ณผ ๊ทธ ๊ฒฝ๊ณ„๋ฅผ ๊ฐœ๋žต์ ์œผ๋กœ ๋‚˜ํƒ€๋‚ธ ๊ฒƒ์ž…๋‹ˆ๋‹ค. ์‹œ์Šคํ…œ์€ ์ƒํ˜ธ์ž‘์šฉํ•˜๊ฑฐ๋‚˜ ์ƒํ˜ธ์˜์กด์ ์ธ ์š”์†Œ๋“ค์˜ ์ง‘ํ•ฉ์œผ๋กœ ํ†ตํ•ฉ๋œ ์ „์ฒด ๋˜๋Š” ์š”์†Œ๋“ค์˜ ์ง‘ํ•ฉ(์ข…์ข… '์„ฑ๋ถ„๋“ค'์ด๋ผ๊ณ  ๋ถˆ๋ฆฐ๋‹ค)๊ณผ ๊ด€๊ณ„๋“ค์„ ํ˜•์„ฑํ•œ๋‹ค. ์‹œ์Šคํ…œ์˜ ์ผ๋ฐ˜์ ์ธ ํŠน์„ฑ์„ ์—ฐ๊ตฌํ•˜๋Š” ๋ถ„์•ผ๋Š” ์‹œ์Šคํ…œ ๊ณผํ•™, ์‹œ์Šคํ…œ ์ด๋ก , ์‹œ์Šคํ…œ ๊ณตํ•™, ์‚ฌ์ด๋ฒ„๋„คํ‹ฑ์Šค, ๋™์  ์‹œ์Šคํ…œ, ๋ณต์žกํ•œ ์‹œ์Šคํ…œ ๋ฐ ์‹œ์Šคํ…œ ๋ถ„์„ ๋ฐ ์„ค๊ณ„๋ฅผ ํฌํ•จํ•œ๋‹ค. ์ผ๋ถ€ ์‹œ์Šคํ…œ์€ ๋‹ค์Œ๊ณผ ๊ฐ™์€ ๊ณตํ†ต ํŠน์„ฑ์„ ๊ณต์œ ํ•ฉ๋‹ˆ๋‹ค. § ์‹œ์Šคํ…œ์€ ๊ตฌ์กฐ๋ฅผ ๊ฐ€์ง€๋ฉฐ, ์„œ๋กœ ์ง๊ฐ„์ ‘์ ์œผ๋กœ ๊ด€๋ จ๋œ ๋ถ€ํ’ˆ(๋˜๋Š” ๊ตฌ์„ฑํ’ˆ)์„ ํฌํ•จํ•œ๋‹ค. § ์‹œ์Šคํ…œ์€ ์ž…๋ ฅ์„ ์ถœ๋ ฅ(์žฌ๋ฃŒ, ์—๋„ˆ์ง€ ๋˜๋Š” ๋ฐ์ดํ„ฐ)์œผ๋กœ ๋ณ€ํ™˜ํ•˜๋Š” ํ”„๋กœ์„ธ์Šค๋ฅผ ํฌํ•จํ•˜๋Š” ๋™์ž‘์„ ๊ฐ€์ง‘๋‹ˆ.. 2023. 4. 23.
[์†Œํ”„ํŠธ์›จ์–ด๊ณตํ•™] 7์žฅ. ์š”๊ตฌ์‚ฌํ•ญ ๋ถ„์„ ๋ชจ๋ธ๋ง 7์žฅ. ์š”๊ตฌ์‚ฌํ•ญ ๋ถ„์„ ๋ชจ๋ธ๋ง 4. Flow-oriented Modeling : ํ๋ฆ„ ์ง€ํ–ฅ ๋ชจ๋ธ๋ง ๋ชจ๋“  ์ปดํ“จํ„ฐ ๊ธฐ๋ฐ˜ ์‹œ์Šคํ…œ์€ ์ •๋ณด์˜ ๋ณ€ํ™˜์ด๋‹ค. (input → Transformation → output) ์˜ค๋Š˜๋‚  flow ๊ธฐ๋ฐ˜ ๋ชจ๋ธ์€ ๊ฐ€์žฅ ๋„๋ฆฌ ์‚ฌ์šฉ๋˜๋Š” ๋ถ„์„ ๋ชจ๋ธ. DFD (Data Flow Diagram) ๋ฐ์ดํ„ฐ ๊ฐœ์ฒด : Labeled ํ™”์‚ดํ‘œ ๋ณ€ํ™˜ : ์› DFD๋Š” ๊ณ„์ธต์  ๋ฐฉ์‹์ด๋‹ค. ๋ ˆ๋ฒจ 0 DFD๋Š” ์‹œ์Šคํ…œ ์ „์ฒด๋ฅผ ๋‚˜ํƒ€๋‚ธ๋‹ค (context diagram) External Entity - ์™ธ๋ถ€ ์—”ํ‹ฐํ‹ฐ ๋ฐ์ดํ„ฐ ์ƒ์‚ฐ์ž / ์†Œ๋น„์ž (ex: ์‚ฌ๋žŒ, ์žฅ์น˜, ์„ผ์„œ, ์ปดํ“จํ„ฐ ๊ธฐ๋ฐ˜ ์‹œ์Šคํ…œ) ๋ฐ์ดํ„ฐ๋Š” ํ•ญ์ƒ ์–ด๋”˜๊ฐ€์—์„œ ์ƒ์„ฑ๋˜์–ด์•ผ ํ•˜๋ฉฐ, ํ•ญ์ƒ ๋ฌด์–ธ๊ฐ€๋กœ ์ „์†ก๋˜์–ด์•ผ ํ•œ๋‹ค. Process ๋ฐ์ดํ„ฐ ๋ณ€ํ™˜๊ธฐ (changes input to.. 2023. 4. 23.
[์†Œํ”„ํŠธ์›จ์–ด๊ณตํ•™] 6์žฅ. ์š”๊ตฌ์‚ฌํ•ญ ๊ฐœ๋… 6์žฅ. ์š”๊ตฌ์‚ฌํ•ญ ๊ฐœ๋… what-analysis(problem) how-design(solution) [ ์š”๊ตฌ๊ณตํ•™ : Requirements Engineering (RE) ] RE Tasks Understanding what the customer wants Analyzing needs Assessing feasibility (ํƒ€๋‹น์„ฑ ํ‰๊ฐ€) Negotiation a reasonable approach (ํ•ฉ๋ฆฌ์  ์ ‘๊ทผ๋ฐฉ์‹ ํ˜‘์ƒ) Specifying the problem unambiguously (๋ฌธ์ œ๋ฅผ ๋ช…ํ™•ํ•˜๊ฒŒ ์ง€์ •) Validating the specification (์‚ฌ์–‘ ์œ ํšจ์„ฑ ๊ฒ€์‚ฌ) Managing the requirements (์š”๊ตฌ์‚ฌํ•ญ ๊ฒ€์ฆ๊ด€๋ฆฌ) RE Process (7 Tasks) โ˜ ๏ธ Incep.. 2022. 10. 20.
[์†Œํ”„ํŠธ์›จ์–ด๊ณตํ•™] 5์žฅ. ํ”„๋กœ์ ํŠธ ๊ด€๋ฆฌ (2) 5์žฅ. ํ”„๋กœ์ ํŠธ ๊ด€๋ฆฌ (2) [ ๋ฆฌ์Šคํฌ ๊ด€๋ฆฌ ] Risk ํŠน์ง• : concerns future happenings (๋ฏธ๋ž˜์˜ ์ผ์— ๊ด€ํ•œ ๊ฒƒ) Risk analysis(๋ถ„์„) identification(์‹๋ณ„) projection/estimation (์ถ”์ •) Risk resolution - RMMM mitigation (์™„ํ™”) monitoring (๊ฐ์‹œ) management/control (ํ†ต์ œ) PS - Product Size ๊ตฌ์ถ• ๋˜๋Š” ์ˆ˜์ •ํ•  ์†Œํ”„ํŠธ์›จ์–ด์˜ ์ „์ฒด ํฌ๊ธฐ์™€ ๊ด€๋ จ๋œ ์œ„ํ—˜. BU - Business Impact ๊ฒฝ์˜์ž ๋˜๋Š” ์‹œ์žฅ์— ์˜ํ•ด ๋ถ€๊ณผ๋˜๋Š” ์ œ์•ฝ๊ณผ ๊ด€๋ จ๋œ ์œ„ํ—˜. CU - Customer Characteristics ๊ณ ๊ฐ์˜ ์ •๊ตํ•จ ๋ฐ ๊ณ ๊ฐ๊ณผ ์ ์‹œ.. 2022. 10. 20.
[์†Œํ”„ํŠธ์›จ์–ด๊ณตํ•™] 5์žฅ. ํ”„๋กœ์ ํŠธ ๊ด€๋ฆฌ (1) 5์žฅ. ํ”„๋กœ์ ํŠธ ๊ด€๋ฆฌ (1) ํ”„๋กœ์ ํŠธ ๊ณ„ํš - Planning Before the project can begin, the software team should estimate; ์ถ”์ •ํ•ด์•ผํ•œ๋‹ค the work to be done, the resources required, and the time that will elapse from start to finish. [ ํ”„๋กœ์ ํŠธ ๊ณ„ํš - Task Set ] Establish project scope : ๋ฒ”์œ„ ์„ค์ • Determine feasibility : ํƒ€๋‹น์„ฑ ๊ฒ€์ฆ Analyze risks : ๋ฆฌ์Šคํฌ ๋ถ„์„ -Risk analysis is considered. Define required resources : ํ•„์š”ํ•œ ์ž์› ์ •์˜ -Determine requir.. 2022. 10. 20.
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