• 디지털융복합연구
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• 제11권5호
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• pp.31-39
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• 2013

스마트TV는 컴퓨팅 능력, 방송 및 인터넷 서비스가 가능한 상호작용을 높인 텔레비전이다. 사용성은 스마트TV의 평가요소로 그 중요성이 있다. 사용성 관점에서 스마트TV를 평가하기 위해서는 사용성에 영향을 미치는 요인을 중심으로 한 측정 모델의 개발이 필요하다. 본 논문에서는 스마트TV의 사용성 측정을 위한 AHP(계층적분석과정) 모델과 측정 데이터를 획득하는 방법을 제안한다. 선행연구로부터 사용성에 영향을 미치는 요인을 도출한 후 사용성 점수를 계산하는 수치적 예제를 보인다.

• 한국전자거래학회지
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• 제6권2호
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• pp.73-85
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• 2001

Usability is defined by the effectiveness, efficiency and satisfaction with which specified users can achieve specified goal in particular environment. Today, many factors such as software acquisition, business re-engineering and the trend of software market have software industry considers usability as an important quality of software products. Therefore, the specification and measurement method for establishing the acceptable usability level of software is required during software development acquisition and evaluation. To evaluate whether software products is usable or not, we need evaluation method for software usability. This paper is not only to provide a framework for specifying the usability attributes of a product and establishing a comprehensive set of usability criteria, but also assessing usability metrics of the software. The usability metrics and checklist is developed based on the properties of the user interface using ISO standard and general usability principles with product-oriented view which means the Product has attributes contributing to determine the usability. This paper also suggested the way to weight the relative importance of the individual usability item depending on the software categories.

• 산업경영시스템학회지
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• 제19권37호
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• pp.87-94
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• 1996

There is a currently a focus on the usability of interactive computer products. Many usability measurement and evaluation methods have been developed in the fields of human-computer interaction and software ergonomics. In this paper, the issues of usability evaluation methods are introduced, and the usability evaluation methods are classified and compared. Also, the framework for systematic usability effort based on product' lifecycle is presented.

• 한국정보기술응용학회:학술대회논문집
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• 한국정보기술응용학회 2002년도 춘계학술대회
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• pp.23-25
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• 2002

• 대한인간공학회:학술대회논문집
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• 대한인간공학회 1997년도 추계학술대회논문집
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• pp.366-371
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• 1997

Although the concept of usability has been well defined in the software usability engineering area, it is not appropriate to apply the same concept directly to the consumer electronic products. A new concept of usability appropriate for evaluating consumer electronic consumer electronic products was suggested in this study. It is characterized by integrating both the performance and the impression factors. Based on the concept developed, a systematic and integrated methodology for usability evaluation was proposed. The methodology contains four major steps; the development of the measurement methods for evaluating usability attributes, the development of the analysis techniques for the human interface elements, the development of the evaluation method for the usability of human interface elements, and the development of the usability model. The results of this study can be applied to evaluate the usability of various electonic products in a systematic and efficent manner.

• 대한인간공학회지
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• 제29권6호
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• pp.843-851
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• 2010

This study aims to systematically develop a usability evaluation model using the Structural Equation Model (SEM) from experiment of usability on using vehicle. Vehicle developers have been adding many functions for enhance the user satisfaction. But it will be made the trade-off problem of usability and design elements of vehicle interior from attempt to make best usability satisfaction in a restricted space. To solve the trade-off problem, we set a new solution criterion from usability evaluation model. The usability experiment is based on major activity pool from derived user's acts pattern in vehicle for make more accurate usability evaluation model. And this model was built with twenty-nine measurement variables for the evaluation of usability of vehicle user. As a result, the proposed SEM model showed statistical significance as well as a high level of R Square (0.7144). This model shows the relationships of detailed usability and design elements. According to the result, this study introduces the criterion to secure the best satisfaction of usability and design elements.

• 대한인간공학회:학술대회논문집
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• 대한인간공학회 1997년도 추계학술대회논문집
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• pp.313-319
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• 1997

There is currently a focus on usability of interactive computer software. Previous research in software ergonomics has indicated the importance of evaluating the usability of software user interfaces. Software developers, interface designers or human foctors engineers often confront the task of comparative evaluation among systems, versions or interface designs. This study presents a structured model for comparative evaluation of user interface designs using usability criteria and measures. The proposed model consists of twomain phases : the prescreening phase ad the evaluation phase. The first phase involves expert judgment-based approach with qualitative criteria. The prescreening phase uses absolute measurement analytic hierarchy process to filter possible altermative interfaces to a reasonable subset. The second phase involves user-based approach such as usability testing, with quantitative criteria. The objective of the evaluation phase is to evaluate a subset of altermatives using objective measures. A set of criteria and measures for evaluating the usability of computer software designs is presented. The proposed model provides practitioners with a structured approach to select the best interface based on usability criteria and measures.

• 한국병원경영학회지
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• 제18권4호
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• pp.97-112
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• 2013

This study is a proposal of quality scale and measurement for the Mobile Hospital Information System Usability used to the Chungnam National University Hospital in Daejeon Korea. This study is to provide decision- making guideline for hospital managers and to provide feedback for the users' information needs in Mobile Hospital Information System. The target people of the study were medical doctors in Chungnam National University Hospital. The service contexts of usability were request of medical Care, Vital sign check of Patient, Care Agreement of Patient, Blood management, Check of care state, Sign of choice doctors, Query of doctor order and patient measurement result. The Usability factors were the efficiency, effectiveness and satisfaction of quality model ISO9241-11. This study shows that the Mobile HIS is used for the communication and education between doctor and patients. Especially, The Care Agreement of Patient is a part of the most utilized in the Mobile HIS.

• 한국융합학회논문지
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• 제12권2호
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• pp.135-146
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• 2021

본 연구에서는 음악 스트리밍 서비스의 이용자 수가 점차 늘어가는 추세 속에서 사용자들에게 개선된 사용성을 가진 앱을 제공하고자 Screen Test기법과 실시 전후로 인터뷰를 진행하는 방식으로 사용성 테스트를 실시하고, Performance Measurement방식과 Contextual Inquiry방식을 사용하여 사용성 테스트 진행하였다. 사용성 테스트는 10대부터 50대 사용자 각 1명씩 진행하였으며 서비스 사용자가 많은 멜론, 유튜브 뮤직, 지니, FLO앱에서 진행하였다. 사용성 테스트 결과 아이콘이 기능을 충분히 나타내지 못하고 상호 작용 가능한 버튼으로 인식되지 못하여 사용자가 지나치는 점, 기능이 활성화 되었을 때 시각적 효과 부족으로 사용자가 인지하지 못하는 문제, 기능 배치가 연속적이지 않아 끊기는 사용성을 가지는 문제점을 도출하였다. 이에 대해 각 앱에 대해서 아이콘을 직관적으로 변경하고, 기능 활성화 시 화면의 시각적 효과를 추가하며, 기능이 연속성을 가지도록 위치 조정을 하는 등의 사용자 화면 개선안을 시각적 자료와 함께 제시했다.

• 유통과학연구
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• 제11권11호
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• pp.41-47
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• 2013

Purpose -This paper aims to understand how easy and convenient it is for consumers to use mobile services. A mobile service combines hardware and software with information technology. To specifically meet the needs of users of mobile applications, the context of usability was identified in consumer mobile services. Research Design, Data, and Methodology - For usability measurement and evaluation, appliances and software were the main target: this applied to an expanding range, such as a Personal Digital Assistant (PDA), mobile phones, and wired and wireless integrated services. This study extended the Technology Acceptance Model (TAM) by examining the roles of two characteristics of mobile applications'usage: usability and usefulness. Results - The study tested the research model using a structural equation modeling (SEM) technique. Results showed no significant differences between the two models. Usability comprised learnability, efficiency, memorability, errors, and satisfaction: the motivation for using a mobile application was understood as being the usefulness and easy-of-use of the mobile application. This empirical study validated the proposed research model and hypotheses, and found that the hypotheses could be supported. Finally, the phenomena derived from the causal relationships in usability were identified, and their implications considered.