solโ€™s blog

Human Variability and Accommodation

sol-commits
sol-commits Oct 26, 2025
์‚ฌ๋žŒ์˜ ์ฐจ์ด๋ฅผ ์ •๋Ÿ‰์ ์œผ๋กœ ๋‹ค๋ฃจ์–ด ์„ค๊ณ„์— ๋ฐ˜์˜
 

Ergonomics: ์‚ฌ๋žŒ ์ค‘์‹ฌ ์„ค๊ณ„์˜ ์ถœ๋ฐœ์ 

Ergonomics = understanding human-system interaction to optimize well-being and system performance
  • Ergonomics๋Š” ์‚ฌ๋žŒ๊ณผ ์‹œ์Šคํ…œ์˜ ๊ด€๊ณ„๋ฅผ ์ „์ฒด์ ์œผ๋กœ ์ตœ์ ํ™”ํ•˜๋ ค๋Š” ํ•™๋ฌธ
  • ์„ค๊ณ„์˜ ๋ชฉ์ ์€ ์ž‘๋™ ๊ฐ€๋Šฅํ•œ ์ œํ’ˆ์ด ์•„๋‹ˆ๋ผ ์‚ฌ๋žŒ์ด ์•ˆ์ „ํ•˜๊ณ  ํšจ์œจ์ ์œผ๋กœ ์‚ฌ์šฉํ•  ์ˆ˜ ์žˆ๋Š” ์ œํ’ˆ
  • Human Variability(์‚ฌ๋žŒ์˜ ์ฐจ์ด)๋ฅผ ๋ฐ˜์˜ํ•˜์ง€ ์•Š์€ ์„ค๊ณ„๋Š” ์•„๋ฌด๋ฆฌ ๋ฉ‹์ ธ๋„ ์‹คํŒจํ•œ ๋””์ž์ธ์ด ๋จ
 

Human Variability: ์‚ฌ๋žŒ์€ ์„œ๋กœ ๋‹ค๋ฅด๋‹ค

๐Ÿ“ ๋ฌด์—‡์ด ๋‹ค๋ฅธ๊ฐ€?

  • Body size & shape: ํ‚ค, ํŒ” ๊ธธ์ด, ํ—ˆ๋ฆฌ ๋†’์ด, ์–ด๊นจ ํญ
  • Strength & flexibility: ๊ทผ๋ ฅ๊ณผ ๊ฐ€๋™ ๋ฒ”์œ„
  • Perception & cognition: ๊ฐ๊ฐ๊ณผ ์ฃผ์˜, ์ธ์ง€ ๋ฐฉ์‹
  • Preference & behavior: ์ทจํ–ฅ๊ณผ ํ–‰๋™ ์Šต๊ด€

 

์‚ฌ๋žŒ์˜ ๋™์ž‘ ์ „๋žต(postural strategy)์ด ์ œ๊ฐ๊ฐ์ด๋ผ๋Š” ๊ฒƒ.

โ†’ ํ•˜๋‚˜์˜ ์ด์ƒ์  ์ž์„ธ๋Š” ์กด์žฌํ•˜์ง€ ์•Š์Œ

 

Accommodation: ์–ผ๋งˆ๋‚˜ ๋งŽ์€ ์‚ฌ๋žŒ์ด ํŽธํ•˜๊ฒŒ ์“ฐ๋Š”๊ฐ€

๐Ÿงฉ ๊ฐœ๋… ์ •์˜

A person is accommodated if he/she can use the product without undue difficulty
  • ์ข‹์€ ์„ค๊ณ„์˜ ๊ธฐ์ค€์€ ํ‰๊ท  ์‚ฌ์šฉ์ž๊ฐ€ ์•„๋‹ˆ๋ผ ์ „์ฒด ์‚ฌ์šฉ์ž ์ค‘ ๋ช‡ %๊ฐ€ ๋ฌด๋ฆฌ ์—†์ด ์‚ฌ์šฉํ•˜๋Š”๊ฐ€(accomodation level)
 

๐Ÿ“ˆ ์ˆ˜์šฉ๋„(Accommodation level)

  • ๋ชฉํ‘œ ์ธ๊ตฌ ์ค‘ ๋ฌด๋ฆฌ ์—†์ด ์‚ฌ์šฉํ•˜๋Š” ๋น„์œจ
  • ๋ณดํ†ต 90%~95%๋ฅผ ๋ชฉํ‘œ๋กœ

 

Principle 1: Design for the Extremes

Design so that even the smallest and largest users can use it safely and comfortably
 

๐Ÿ’ก ๊ฐœ๋… ์š”์•ฝ

  • ๊ฐ€์žฅ ์ž‘๊ณ , ๊ฐ€์žฅ ํฐ ์‚ฌ๋žŒ(๊ทน๋‹จ ์‚ฌ์šฉ์ž)์˜ ์‚ฌ์šฉ์„ ๊ธฐ์ค€์œผ๋กœ ์„ค๊ณ„
  • ๊ฐ„๋‹จํ•œ ๋ฌธ์ œ์—๋Š” ์ด ์ ‘๊ทผ์ด ๊ฐ€์žฅ ํšจ์œจ์ 
  • ๋ฐฑ๋ถ„์œ„(Percentile) ๊ฐœ๋…์„ ์‚ฌ์šฉํ•˜์—ฌ ์„ค๊ณ„ ์ˆ˜์น˜๋ฅผ ๊ฒฐ์ •
 

Principle 2: Providing Adjustability

Allow the product to be adjusted to accommodate different users
 

์š”์ 

  • ๋ชจ๋“  ์‚ฌ์šฉ์ž๋ฅผ ํ•œ ์น˜์ˆ˜๋กœ ๋งž์ถ”๊ธฐ ์–ด๋ ต๋‹ค๋ฉด, ์กฐ์ ˆ ๊ฐ€๋Šฅํ•œ ์ œํ’ˆ์œผ๋กœ ๋‹ค์–‘ํ•œ ์‹ ์ฒด ์กฐ๊ฑด์„ ์ˆ˜์šฉ
  • ์กฐ์ ˆ ๊ฐ€๋Šฅ์„ฑ(adjustability)์€ human variability๋ฅผ ์™„ํ™”ํ•˜๋Š” ๊ฐ€์žฅ ์ง์ ‘์  ์ˆ˜๋‹จ

 

Principle 3: Best Single-Configuration Design

Find one fixed configuration that maximizes population accommodation
 

ํ•ต์‹ฌ

  • ์กฐ์ ˆ ๋ถˆ๊ฐ€๋Šฅํ•œ ์ œํ’ˆ์ด๋ผ๋ฉด, ๋ชจ๋“  ์‚ฌ์šฉ์ž์—๊ฒŒ ๊ฐ€์žฅ ์ž˜ ๋งž๋Š” ํ•˜๋‚˜์˜ ์„ค๊ณ„๋ฅผ ์ฐพ์•„์•ผ ํ•จ
  • ์ด๋•Œ โ€œํ‰๊ท ๊ฐ’โ€์ด ์•„๋‹ˆ๋ผ โ€œ์ˆ˜์šฉ๋„ ๊ณก์„ (accommodation function)โ€์˜ ์ตœ๋Œ“์ ์„ ์ฐพ์Œ

 

Principle 4: Horizontal Segmentation

If clear subgroups exist, design separate versions for each
 

์š”์ 

  • ์‚ฌ์šฉ์ž ์ง‘๋‹จ์ด ๋šœ๋ ทํ•˜๊ฒŒ ๋‹ค๋ฅธ ์š”๊ตฌ๋ฅผ ๊ฐ€์ง„๋‹ค๋ฉด ํ•˜๋‚˜์˜ ์ตœ์ ๊ฐ’ ๋Œ€์‹  ์—ฌ๋Ÿฌ ๊ฐœ์˜ ์„ธ๊ทธ๋จผํŠธ(์˜ˆ: small/medium/large)๋กœ ๋‚˜๋ˆ„์–ด ์„ค๊ณ„

 

Fusion & Selection

Fusion: combine the advantages of two or more designs

Selection & Combination: allow users to choose and assemble components

 

ํ•ต์‹ฌ

  • Fusion์€ โ€œ์งœ์žฅ + ์งฌ๋ฝ•โ€์ฒ˜๋Ÿผ ๊ธฐ์กด ์†”๋ฃจ์…˜์˜ ์žฅ์ ์„ ํ•ฉ์ณ ํ•˜๋‚˜์˜ ํ•˜์ด๋ธŒ๋ฆฌ๋“œ๋กœ ๋งŒ๋“œ๋Š” ๊ฒƒ
  • Selection & combination์€ ์‚ฌ์šฉ์ž๊ฐ€ ์ง์ ‘ ๊ตฌ์„ฑ ์š”์†Œ๋ฅผ ์„ ํƒํ•  ์ˆ˜ ์žˆ๊ฒŒ ํ•จ

 

Personalized Recommendation

Use user data to recommend the most suitable product or configuration
  • AI/LLM์„ ์ด์šฉํ•ด ์‚ฌ์šฉ์ž์˜ ์ฒดํ˜•, ์ƒํ™œ์Šต๊ด€์„ ๊ธฐ๋ฐ˜์œผ๋กœ ๋งž์ถค ์ œํ’ˆ ์ถ”์ฒœ ๋ฐ ์‚ฌ์šฉ ๊ฐ€์ด๋“œ๋ฅผ ์ œ๊ณต
 

Persona

Design for a specific primary persona; extend later for others
 

์š”์ 

  • Primary persona๋ฅผ ํ•˜๋‚˜ ์ •ํ•˜๊ณ , ๊ทธ ์‚ฌ๋žŒ์„ ์œ„ํ•œ ์ตœ์  ์„ค๊ณ„๋ฅผ ๋จผ์ € ๋งŒ๋“  ๋’ค adjustability, segmentation, fusion ์œผ๋กœ ์ปค๋ฒ„ ๋ฒ”์œ„๋ฅผ ๋„“ํž˜
  • persona๋Š” ๋‹จ์ˆœํ•œ ํ”„๋กœํ•„์ด ์•„๋‹ˆ๋ผ ์„œ์‚ฌ์  ์ธ๋ฌผ์ด์–ด์•ผ ํ•จ

 

Design Tools for Accommodation

Tool
์„ค๋ช…
Manikin family
๋‹ค์–‘ํ•œ ์ฒดํ˜•์˜ ๋””์ง€ํ„ธ ์ธ์ฒด ๋ชจ๋ธ
HADRIAN DB
๊ณ ๋ น์žยท์žฅ์•  ํฌํ•จ ์ธ์ฒด ๋Šฅ๋ ฅ DB
3rd age suit
๋…ธํ™” ์ฒดํ—˜ ์ŠˆํŠธ
VR evaluation
๊ฐ€์ƒํ˜„์‹ค์„ ํ†ตํ•œ ์‚ฌ์šฉ ์ฒดํ—˜

์ถ”์ฒœ ๊ธ€

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