• Agribusiness and Information Management
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• 제1권1호
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• pp.37-62
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• 2009

Web usability for e-commerce sites becomes a more important issue as e-commerce gains its popularity. As for agricultural products, consumers are especially sensitive to the quality of information during transaction process. Successful e-commerce sites of agricultural products, such as Wine.com and Tesco, identified regular usability testing as part of key success factors. This paper aims to identify processes for evaluating usability for e-commerce sites of agricultural products and provide strategies to improve usability. The study aims to evaluate e-commerce usability of selected e-commerce sites using heuristic evaluation to provide objective e-commerce sites usability analysis for each transaction process.

• 유통과학연구
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• 제17권12호
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• pp.55-62
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• 2019

Purpose: The number intelligent homecare products are focused on the development of technology, resulting in a lack of realistic environments or requirements for consumers. The purpose of this paper is to define the consumer and context for intelligent homecare products and to develop a usability evaluation scale. Research design, data and methodology: For this study, first, consumer and contexts related to intelligent homecare products were analyzed through literature review. Second, the primary usability evaluation factors were derived for intelligent homecare products by collecting the factors related to usability evaluation and conducting in-depth interviews with experts. Third, the second usability evaluation factors were derived through survey and statistical analysis based on the derived usability evaluation factors. Results: As a result, users of intelligent homecare products were classified as primary users and secondary consumers and six related contexts. The usability evaluation scale was established with four factors - Functionality, Error, Convenience, and Emotion - and 13 items. Conclusions: This study can be the basis for developing and distributing products that meet the consumer environment and requirements related to intelligent homecare products that will contribute to securing the competitiveness of companies and developing the technology and service value of related industries.

• 대한인간공학회지
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• 제17권2호
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• pp.97-104
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• 1998

This study reviews usability of PC communication softwares with different dialogue types of user interface. Usability test was conducted to evaluate usability of 3 PC communition softwares which are currently utilized in Korea. Learnability was adopted as an index of usability evaluation, so learning time, testing time and scores were measured as dependent variables. It is suggested that softwares with mixing dialogue type(menu, icon, command) which were implemented in window systems environment were not superior to that with command dialogue type.

• 산업경영시스템학회지
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• 제29권4호
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• pp.8-17
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• 2006

Presented in this paper was to evaluate and improve the usability of a web-based logistics information system. The system was developed for the domestic company to track and monitor its own transportation vehicles and for the customers to check the current location of their packages by using Global Positioning System (GPS) and Short Massage Service (SMS). Since the initial system was developed under a tight schedule set by the company, the system designers and programmers did not focus on the usability of the system but on the functionality. Consequently, some usability problems of the system were discovered during the heuristic usability evaluation. This study was required to solve these usability issues. Usability problems of the initial system were identified and analyzed, and the user's requirements for the system were re-evaluated to meet the company's expectation. Several alternative designs were developed by fitted guidelines and then a updated system was developed. The updated system had an empirical usability test to find how much the initial system was improved from the heuristic evaluation. Two kinds of data were gathered during the tests: objective (completion time and number of errors) and subjects' preference. Data showed the updated system is better than the initial system in terms of usability. Presented in this paper includes introduction of the Usability evaluation, usability engineering process applied in this research, alternative design of GUI, usability test and results.

• 대한인간공학회지
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• 제22권4호
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• pp.27-45
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• 2003

PDAs(Personal Digital Assistants), one of the typical mobile devices, are examined in this study to identify the factors affecting their usability. This study focuses on the menu design of PDAs. Three factors including menu extension method, menu structure, and screen orientation were manipulated in a usability experiment. Task completion times, error rates, and degree of subjective satisfaction were measured. Guidelines for designing a PDA menu are proposed based on the experimental results.

• International Journal of Internet, Broadcasting and Communication
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• 제12권1호
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• pp.73-80
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• 2020

The OECD surveys the questionnaire on the background of ICT every three years since 2003. In this study, we compare and analyze the changes in ICT accessibility and ICT usability of Korean students in 2015 and 2018 using the ICT background data of OECD PISA. ICT accessibility refers to the degree of access to ICT equipment at school or at home. There are 10 items of accessibility surveys at schools used by PISA, and 11 items at home. ICT usability refers to how much ICT equipment is used at or outside of school for learning or non-learning purposes. There are ten items for surveying usability at school, and twenty-four items for surveying usability outside of school. In the analysis of this study, the arithmetic mean of the items is used. As a result, Korean students' accessibility at school improved from 25.48% in 2015 to 40.40% in 2018, and from the lowest group in 2015 to below-average group in 2018. In terms of students' usability at school, we analyzed the percentage of students who use the ICT equipment 'almost every day' and the students who use it 'everyday'. Both 2015 and 2018 are among the lowest. Accessibility at home is higher in 2018 than in 2015, and belongs to the average group of OECD countries in 2018. ICT Usability for learning purposes outside of school is the lowest group in both 2015 and 2018. ICT Usability outside of school for non-learning purposes is in the average group of OECD countries. As a result of this study, we can see that Korea's digital literacy education is weak compared to other OECD countries. Prior to education about the Fourth Industrial Revolution, investment in digital literacy education is needed.

• 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.

• 감성과학
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• 제15권2호
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• pp.249-258
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• 2012

본 연구는 작업속성에 따른 스마트폰의 심미성이 주관적 사용성과 객관적 사용성에 미치는 영향을 살펴보았다. 기존의 여러 연구에서 심미성이 주관적 사용성과 객관적 사용성에 미치는 영향에 대해 살펴보았지만, 아직까지도 심미성과 객관적 사용성의 관계는 모호했다. 본 연구에서는 동일한 기능을 가지지만 다른 심미성을 가진 스마트폰을 사용하여 36명의 피실험자에게 3가지 타입의 작업(정보입력작업, 정보검색작업, 정보유희작업)을 수행하도록 하였으며, 이때의 수행도와 주관적 평가가 기록되었다. 그 결과 높은 심미성이 낮은 심미성에 비해 주관적 사용성이 사용 전과 후에 높게 평가되었지만, 사용 전에 비해 사용 후에는 그 차이가 줄어들었다. 또한 심미성이 높은 것이 작업수행시간이 더 오래 소요되었다. 하지만 작업속성과 심미성에 의한 교호작용은 보이지 않았다. 본 연구의 결과는 심미성은 감성적 만족도뿐만 아니라 다양한 효과를 가진다는 것을 보여주었다. 본 연구의 결과는 사용성 평가에서 심미성이 주관적 사용성과 객관적 사용성에 미치는 영향을 예측할 수 있게 해줄 것이라고 기대된다.

• 한국콘텐츠학회논문지
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• 제21권3호
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• pp.121-130
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• 2021

다양한 산업 분야의 서비스 개발 경쟁 심화로 인해 긍정적인 사용자 경험을 제공하는 완성도 높은 서비스 제작의 중요성이 강조되고 있다. 이에 서비스 완성도와 효용에 대한 검증 방법으로 사용성 평가가 중요하게 인식되고 있지만, 일반적 사용성 평가 방법은 획일적인 구성으로 인해 다양한 참여자의 특성을 고려하지 못하는 한계가 있다. 이러한 한계가 평가 효율을 저하시킬 수 있기 때문에 이를 개선할 새로운 평가 방법의 가이드라인 개발이 필요한 실정이다. 이에 본 연구에서는 아동이 참여하는 사용성 평가에서 고려해야 하는 특성을 정의하고, 평가 효율을 증대시킬 수 있도록 원격 사용성 평가 구성 및 진행을 위한 가이드라인을 제안하였다. 또한 제안한 가이드라인을 기반으로 설계한 사용성 평가 실험을 진행하였으며, 이 과정에서 가이드라인의 효용을 검증하고 보완이 필요한 사항을 도출하였다. 본 연구를 통해 제안한 아동 대상 원격 사용성 평가 가이드라인이 아동을 대상으로 개발한 서비스의 사용성 평가 설계를 위한 기반 자료로 활용될 수 있을 것으로 기대한다.

• 정보관리학회지
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• 제29권3호
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• pp.123-144
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• 2012

이 연구는 대학 강의지원시스템을 이용하는 학습자의 이용성을 향상시키기 위해 필요한 이용자 인터페이스 설계 원칙을 개발하는데 목적이 있다. 이를 위하여 문헌조사를 바탕으로 사전설문과 이용성 평가 실험으로 구성된 이용성 조사를 실시하였다. 이용성 조사로부터 얻어낸 결과를 종합하여 총 11개의 대학 강의지원시스템 이용자 인터페이스 설계 원칙을 개발하였다. 본 연구는 대학 강의지원시스템의 이용자 인터페이스 설계 원칙을 개발하기 위하여 주이용자인 학습자를 대상으로 이용성 조사를 실시하여 실제 이용자의 의견을 시스템의 기능별로 제시하고 직접적으로 설계 원칙에 반영할 수 있었다는 점에서 의의가 있다.