• 대한인간공학회지
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• 제15권1호
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• pp.1-14
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• 1996

Menu-driven interfaces are frequently employed for user interfaces on many electronic products. Due to space constraint, a single or multi-line display is popularly used to show menu items unlike the software interfaces. Single or multi-line display present 8 .approx. 21. characters on an LCD screen and the user selects items using a series of button pushes. Multi-line displays are different from the single-line ones in the following aspects. First, they can present multiple line of information at the same time. Second, they can present menu items in a various way compared to single-line ones. However, due to their space constraint multi-line displays have many limitations compared to ordinary displays which usually use 14" screens. Therefore, guidelines are necessary for designing efficent multi-line display menus interfaces. In this study, a human factors experiment was conducted to examine the effects of three design variables which might affect the usability of a multi-line display menus. Factors investigated include menu structure, number of lines on the display, and item presentation method. Usability of the multi-line display menus was measured quantitatively in terms of four different aspects: speed, accuracy, inefficiency and preference. The analysis of variance was used not only to analyze the main effects of the factors and their interactions but also to see the differences between the single-line display menus and multi-line display ones. A set of design guidelines drawn from this study can be applied to the design of the user interfaces of a various types of electronic consumer products.

• 한국컴퓨터정보학회논문지
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• 제15권7호
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• pp.49-55
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• 2010

모바일 인터페이스 분야에서 사용자별로 메뉴 사용 성향의 분석이 현재 중요한 화두가 되고 있다. 현재의 모바일 기기는 통신사 또는 제조사에서 규정한 형태로 설계된 이후에는 사용자가 사용하면서 발생하는 정보를 반영하여 재구성해 주는 기능이 제공되지 않고 있다. 모바일 기기에 탑재되는 메뉴의 수가 지속적으로 증가하고 있지만 메뉴들은 선호도에 관계없이 모두 동일한 수준으로 제시되기 때문에 모바일 인터페이스의 유용성을 떨어뜨리는 원인이 되고 있다. 이러한 문제점을 개선하기 위하여 본 연구에서는 모바일 기기의 메뉴 사용정보를 분석하고 이를 3D의 시각화 기법을 활용하여 모바일 인터페이스에 적용하는 방법을 제시하고자 한다. 또한, 성능평가를 위하여 깊이, 투명도, 애니메이션의 3D 시각화 기법을 모바일 인터페이스에 적용하고 각 기법별 유용성을 비교하고자 사용자의 메뉴 탐색 시간을 측정하는 실험을 수행하였다.

• 대한인간공학회지
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• 제28권4호
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• pp.147-154
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• 2009

The tactical computer is currently being developed and installed in armored vehicles and tanks for reinforcement. With the tactical computer, Korea Army will be able to grasp the deployment status of our forces, enemy, and obstacles under varying situations. Furthermore, it makes the exchange of command and tactical intelligence possible. Recent studies showed that the task performance is greatly affected by the user interface. The U.S. Army is now conducting user-centered evaluation tests based on C2 (Command & Control) to develop tactical intelligence machinery and tools. This study aims to classify and regroup subordinate menu functions according to the user-centered task performance for the Korea Army's tactical computer. Also, the research suggests an ergonomically sound layout and size of main touch buttons by considering human factors guidelines for button design. To achieve this goal, eight hierarchical subordinate menu functions are initially drawn through clustering analysis and then each group of menu functions was renamed. Based on the suggested menu structure, new location and size of the buttons were tested in terms of response time, number of error, and subjective preference by comparing them to existing ones. The result showed that the best performance was obtained when the number of buttons or functions was eight to conduct tactical missions. Also, the improved button size and location were suggested through the experiment. It was found in addition that the location and size of the buttons had interactions regarding the user's preference.

• 한국정보통신학회논문지
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• 제15권2호
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• pp.462-470
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• 2011

음성자동응답시스템(Automatic Response Systems, ARS)은 VUI(Voice User Interface)와 TTI(Touch Tone Interface)를 기반으로 하고 있으며, 현재 가장 널리 사용되는 커뮤니케이션 시스템 중 하나이다. 그러나 많은 사용에도 불구하고, ARS에 대한 불편 사항들이 끊임없이 지적되고 있다. 이는 기술 개발을 넘어, 사용자와 사용성에 대한 체계적인 연구 부족에서 기인한 측면이 있다. 본 논문에서는 ARS 메뉴체계에서의 사용성 저해 요소를 발견 분석하여, ARS 설계를 위한 개선의 지침을 제공한다. 두 개의 인터넷 서점 ARS를 선정하여 피실험자들이 "도서 반품 신청하기"라는 작업을 실행한 후 정해진 설문조사 결과와 인터뷰 내용을 분석하였다. 본 연구에서 메뉴 구조의 복잡성, 메뉴명의 대표성 부족, 사용자 위치인지의 어려움, 메뉴간 이동의 어려움 등 네 가지 문제들을 발견하였고, 이를 피할 수 있는 방법들을 논의하였다.

• Journal of Nutrition and Health
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• 제47권6호
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• pp.443-451
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• 2014

본 연구에서는 어린이집에서 제공하는 간식에 대한 식품 가이드 등 구체적인 기준을 설정하기 위한 기초자료를 마련하기 위하여 어린이집 간식식단의 유형 및 식품의 다양성을 평가하고자 하였다. 이를 위해 서울시 소재 육아종합지원센터 총 14개소에서 2013년 3월 중 어린이집에 제공한 오전 및 오후 간식 630식을 분석하였다. 연구결과, 제공시간에 따라 간식식단의 유형 및 식품 다양성에 차이가 있었다. 전체적으로 두 가지 메뉴 품목을 포함한 간식식단이 가장 많았으나 (66.8%), 오전간식 (1.63개)에 비해 오후간식 (1.74개)의 메뉴 품목 가짓수가 유의적으로 더 많았다. 스낵 음료 조합 패턴을 살펴본 결과, 전체적으로 스낵과 음료를 각 한 개 포함한 (Food + Beverage) 비율이 가장 높았다 (56.7%). 간식식단의 식품군별 제공비율을 분석하였으며 총 630식의 간식식단에서 곡류, 고기 생선 달걀 콩류, 채소류, 과일류, 우유 및 유제품류를 포함하고 있는 식단은 각각 63.5%, 20.3%, 24.9%, 23.0%, 45.6%였다. 간식식단의 식품군 패턴에서는 곡류 (G)와 곡류+우유 및 유제품류 (G + D) 패턴이 각 18.9%, 17.1%로 가장 비율이 높았다. 식품군별 다빈도 메뉴 품목을 분석하였으며, 곡류에서는 '빵류 (21.3%)', 고기 생선 달걀 콩류에서는 '콩류 (32.5%)', 채소류에서는 '숙채류 (66.7%)', 과일류에서는 '생과일 (85.1%)', 우유 및 유제품류에서는 '우유 (66.9%)'가 제공된 비율이 가장 높았다. 본 연구결과 특히, 오후간식 식단에서 한 가지 식품군만으로 구성된 경우가 절반 정도로 제공되는 식품이 다양하지 못했다. 또한 오후간식의 경우 전체 식단의 약 1/3이 곡류만으로 구성되어 있어 충분한 무기질과 비타민 공급이 부족할 가능성이 있었다. 식사로 섭취하기 어려운 우유 및 유제품류는 간식으로 제공되는 것이 바람직하나 본 연구 결과 전체 간식식단의 46%에만 포함되어 있었으며, 과일류 제공 비율은 23%에 불과하였다. 따라서 어린이집을 이용하는 영유아들에게 질적, 양적으로 보다 바람직한 간식을 제공하기 위해서는 오전과 오후간식의 기본 형태, 식품군 구성, 메뉴유형 등에 대한 보다 구체적이며 통합적인 기준이 마련되어야 할 것이다.

• Genomics & Informatics
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• 제6권2호
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• pp.64-67
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• 2008

The Korean Rice Ds-tagging lines Database (KRDD) is designed to provide information about Ac/Ds insertion lines and activation tagging lines using japonica rice. This database has provided information on 18,158 Ds lines, which includes the ID, description, photo image, sequence information, and gene characteristics. The KRDD is visualized using a web-based graphical view, and anonymous users can query and browse the data using the search function. It has four major menus of web pages: (i) a Blast Search menu of a mutant line; Blast from rice Ds-tagging mutant lines; (ii) a primer design tool to identify genotypes of Ds insertion lines; (iii) a Phenotype menu for Ds lines, searching by identification name and phenotype characteristics; and (iv) a Management menu for Ds lines.

• 산업경영시스템학회지
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• 제46권4호
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• pp.281-293
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• 2023

This study addresses the optimal design methodology for switching between active electronically scanned array (AESA) radar operating modes to easily select the necessary information to reduce pilots' cognitive load and physical workload in situations where diverse and complex information is continuously provided. This study presents a procedure for defining a hidden Markov chain model (HMM) for modeling operating mode changes based on time series data on the operating modes of the AESA radar used by pilots while performing mission scenarios with inherent uncertainty. Furthermore, based on a transition probability matrix (TPM) of the HMM, this study presents a mathematical programming model for proposing the optimal structural design of AESA radar operating modes considering the manipulation method of a hands on throttle-and-stick (HOTAS). Fighter pilots select and activate the menu key for an AESA radar operation mode by manipulating the HOTAS's rotary and toggle controllers. Therefore, this study presents an optimization problem to propose the optimal structural design of the menu keys so that the pilot can easily change the menu keys to suit the operational environment.

• 한국식생활문화학회지
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• 제14권1호
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• pp.1-15
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• 1999

A survey was conducted in 591 college students using 8 different cafeterias serving 31 meals. The information was obtained about the name and amount of dishes they consumed from the menu offered by college foodservice. Mean nutrient contents per meal in offered menu were higher than 1/3 of RDA for their age, sex in offered menu. The mean energy content was 466kcal from rice, 113kcal from soup, 141kcal from side dish and 21kcal from kimchi. When side dishes were classified by cooking methods, side dishes using grilling, frying, roasting methods had high energy content and fat percent above 200kcal, 40% per dish. By main ingredients, side dishes with animal food were higher energy than with plant food. Students consumed 94% of the energy provided in offered menu. When compared to proportion of foods consumed by sex, there was 43% of female and 22% of male consumed less than half in soup and 31% of female and 12% of male in kimchi. The most prevalent menu patterns of subjects included rice, soup, 2 side dishes, kimchi and were the same in both sexes. Mean energy intakes per meal were 989kcal for males and 842kcal for females which were enough to meet 1/3 of RDA for their age and sex. Most nutrient intake except fat and vitamin B1 were higher in set menu than in cafeteria. Nutrient adequacy ratio(NAR) were above 0.9 except calcium and vitamin A. The mean energy intake was 542kcal from rice, 70kcal from soup, 164kcal from side dish and 20kcal from kimchi. In conclusion, intake of most of the nutrients of students obtained from males in college foodservice were sufficient but calcium intake was insufficient and fat content was above 20% of energy. High fat consumption was due to side dishes from frying, grilling, roasting with animal food. To provide desirable meals in college foodservice, use of fat in cooking must be decreased.

• 대한영양사협회학술지
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• 제5권2호
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• pp.117-127
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• 1999

This study was carried out to provide the improvable way of foodservice management to dietitian in the elementary schools. For this purpose the serving pattern of food, menu planning, nutrition education, leftover management and difficulties in foodservice were investigated. The survey was conducted through questionnaires, which were collected from 249 dietitions randomly selected in Taejon and Chung Nam. Data were analyzed by SAS program. The main results of this study are as follows. The children in Taejon took foods in the class room(65.7%) and those in Chung Nam in the dinning hall(89.9%)(p<0.01). In menu planning the balance of nutrition(42.6%) was mainly considered and then food preference(19.7%), variety of menus(16.1%), food cost(16.1%), composition of food color, taste and texture(3.2%), skills of food making(1.6%) and the number of students(0.8%). They referred cooking magazines(47.7%), the previous menu(42.2%), children's opinion(7.2%) for planning menu. The insufficiency of implements and devices for food(24.1%) and lack of season's food(20.4%) were indicated as difficulties in their job. 34.5% of dietitians used a standard menu, 79.5% investigated food preference of children, 74.3% evaluated taste of foods before serving, and 80.7% regularly checked leftover. The major reason for leftover was careless of the teacher in charge in Taejon and bad taste of foods nutrition in Chung Nam(p<0.001). 98.5% of them answered that they had the responsibility for nutrition education in elementary school. They had a hard time in relationship with the staffs in school(40.6%) and employees for food(39.8%), and lack of market information(38.2%). To efficiency of dietitian's work can be enhanced by reflecting the results of children's food preference and leftover, by using standard cooking method and proper cooking utensil, and by performing nutrition education for children by themselves.

• 한국식생활문화학회지
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• 제21권3호
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• pp.254-261
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• 2006

The purposes of this study were to measure price elasticities of menu items of a family restaurant, identify differences of price elasticity between subgroups, and provide a comprehensive understanding on price elasticity. 3 menu items of a salad buffet family restaurant in Seoul were selected for analyses, and a questionnaire was developed through literature review and modified after pilot test. The questionnaires for main survey were distributed to 250 customers on their visit to the restaurant, and a total of 139 questionnaires were used for analyses (55.6%). Statistical analyses were conducted using SPSS Win (12.0) for descriptive analyses, t-test, ANOVA, and the main results of this study were as follows. The demands were expected very elastic to the changes in prices of all 3 menu items, and there were significant differences between groups of different company types. In addition, the changes in use were less affected by the changes in menu price when customers were satisfied with each menu item. On the basis of these results, it was concluded that price increases of menu items should be companied by quality improvement of products and services, and differentiated marketing strategy for each segments of customers would be helpful to profitability of the restaurant. Overall, measurement of price elasticity could help to predict customer behaviors on price changes, and give much useful information for managers and marketers of foodservice organizations in development of price strategies.