Signal Detection Theory를 적용한 최적의 메뉴 구조 개발
- 발행기관 고려대학교 대학원
- 발행년도 2004
- 학위명 박사
- 학과 대학원:산업시스템정보공학과
- 식별자(기타) DL:000014914277
- 서지제어번호 000045212794
초록/요약
The purpose of the study is to present a methodology based on Signal Detection Theory(SDT) in Design and evaluation of products. A Signal Detection Model has been effectively used to understand the process of information retrieval. So it can be used as a theoretical background for modeling the process of human's information retrieval. In application of SDT, we elicited probabilistic values for each SDT result. These were based on behavioral for the menu selection of subjects in the task performance process. The case of the study was a mobile phone. And each alternative measure of sensitivity, P(A) was calculated with probabilistic values. Modified menu structure was higher than existed menu structure in terms of sensitivity. As an experimental result, sensitivity was increased from 0.69 of P(A) to 0.87. Also, performance time and the number of keypresses were improved in modified menu structure. Sensitivity of SDT not only reflects a criterion of user's familiarization for menu structure of products, but also user's performance. In the design and evaluation of system menu structures, SDT was proven to be superior than existed methods for performance evaluation in terms of time and cost efficiency. Therefore, this study presents that SDT could be used as a methodology to design and evaluate the user-centered menu structure in relative to human's perceived information structure.
more목차
1. 서 론 1
1.1 연구 배경 1
2.2 연구 목적 2
2. 문헌연구 3
2.1 메뉴와 메뉴 기반 인터페이스(Menu driven interface) 3
2.1.1 메뉴 구조의 깊이와 너비 5
2.1.2 메뉴 구조의 상·하위 아이템 간의 의미적 연관성 7
2.2 활성화 확산 이론(Spreading Activation Theory) 9
2.3 신호 탐지 이론(Signal Detection Theory) 11
3. 연구 방법 17
3.1 실험 1. 시나리오 추출을 위한 활성화 확산 실험(Spreading Activation Test) 19
3.1.1 피실험자 20
3.1.2 실험 장비 20
3.2 신호 탐지 실험(Signal Detection Theory) 21
3.2.1 피실험자 21
3.2.2 실험 절차 21
3.2.3 실험 장비 24
3.2.4 실험 계획 24
4. 실험 결과 24
4.1 실험 1: Spreading Activation Test 24
4.2 실험 2: Signal Detection Theory 26
4.2.1 1차 SDT 실험 결과 26
4.2.2 메뉴 구조의 재설계 31
4.2.3 2차 SDT 실험 결과 33
4.2.4 민감도와 수행도 간의 비교 분석 36
5. 토의 37
6. 결론 39
7. 참고문헌 40
