• The Journal of the Korea Contents Association
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• v.11 no.12
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• pp.182-189
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• 2011

This study was conducted to evaluate the usability of augmented reality (AR) picture book for young children. The participants of this study were 17 five-year-olds attending to M kindergarten in Korea. The measurement of the usability was conducted by observation and interviews during and after children's AR picture book reading 1) usability test score such as task completed that is, reading the AR picturebook successfully, 2) children's behaviors in the process of reading the book, 3) children's response to the questions asking the level of satisfaction with the AR picture book. The result of study showed that most of children could read the AR successfully adjusting the distance and angle of AR picture book to web-camera's location. And children showed verbal and nonverbal expression such as surprise, joy, questions and frustration in reading the book. Children told that AR picture book is fun and easy to read. This study would provide the implications for the interface development and adult-child book reading of AR picture books.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.22 no.4
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• pp.5-19
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• 2011

The purpose of this study is to identify possible needs for system improvements and reflect them on the operation and development of the system as a result of the usability assessment of an information site in science and technology. For this study, a variety of data collection techniques, including search logs, interviews, and think-alouds, were used. The search log data was processed to quantify four evaluation aspects, which were the effectiveness, efficiency, satisfaction, and errors. The verbal data collected by think-alouds and post-interviews were used to identify possible needs of enhancement in a qualitative analysis. The comparison of the usability before and after the system enhancement revealed an increase of 15 points for effectiveness, 35 seconds decrease in efficiency, 5 points increase in satisfaction, and 1.1 errors decreased, implying an overall improvement of the usability of the current system.

• The KIPS Transactions:PartC
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• v.11C no.5
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• pp.703-710
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• 2004

WebDAV is a protocol to support collaboration among one or more groups in geographically distant locations through the internet. WebDAV extends the web communication protocol HTTP/1.1 to provide a standard infrastructure for .supporting asynchronous collaboration for various contents across the internet. A WebDAV client uses HTTP requests to perform a renewal and update action to the resources in WebDAY servers. So, it is desirable that the client supports the ability of authoring and version management with a good concurrency control and property management. In this paper, to enhance usability, we developed a .NET-based WebDAV client with a user interface similar to the Windows Explorer. The developed WebDAV client supports easy launching of the authoring application and appropriate lock control for the server resources. In addition, through the functionality of process monitoring, it supports automatic update of the server resources when the modification of the resources are completed by the user. The WebDAY client is a .NET-based application written in the C＃ language, running on any platform supporting a .NET framework.

• Journal of Korean Society for Quality Management
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• v.32 no.2
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• pp.168-190
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• 2004

In these days of world-wide business environment, the characteristics of quality management are variety, specialty, decentralization, totality, etc. Thus nowadays quality management is demanded to incorporate these new concepts. We propose a web-bused distributed expert system for this purpose. The system consists of four expert systems for design of experiment, acceptance inspection, statistical process control and reliability management corresponding to design quality, incoming-material quality, manufacturing quality and usability quality, respectively, throughout the total product life cycle. Each distributed expert system at the horizontal level in the hierarchy carries out its own quality jobs independently. At the lower level in the hierarchy there is an expert system for measurement analysis to provide reliable data, and at the upper level, an expert system for total quality management to coordinate, integrate and make final decisions. A prototype has been developed and its application is presented.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.10 no.9
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• pp.1602-1611
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• 2006

There are relatively abundant guide lines on designing taking a side view of aesthetics though most of guidelines are based on designer's intuition and common sense. This study focuses on design methodology what can bring about the sensibility from users which coincides with the purpose of the web sites, breaking from the design which was focused on efficient usability. For this approach we applied color scheme to web design based on sensibility model of I.R.I Color Laboratory. Effective color scheme can build up and enhance the sensibility communication between designers and users.

• 한국HCI학회:학술대회논문집
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• 2008.02b
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• pp.216-220
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• 2008

오늘날 인터넷은 사용자에게 수많은 정보와 다양한 선택의 기회를 제공하지만, 사용자는 급속하게 늘어난 수 많은 정보 중에서 자신에게 유용한 정보를 찾는데 더 많은 시간을 투자해야만 한다. 이러한 문제점을 극복하고 좀 더 효율적인 인터페이스를 제공하기 위해서는 사용자들이 원하는 정보를 획득하기까지, 어떠한 탐색 과정을 거쳐 의사 결정을 내리는지에 관한 이해가 선행되어야 할 것이다. 따라서 본 연구는 웹 검색 결과를 소비하는 사용자의 정보 탐색 패턴과 이에 수반되는 인지 과정을 시선의 움직임을 통하여 분석하였다. 실험 결과 일반적인 글읽기 형태와는 차별된 시선의 움직임을 관찰할 수 있었는데, 대부분의 시선 이동 궤적은 직선이 아닌 도처에 걸쳐 흩어진 의미 단위로 드문드문 이동함을 알 수 있었다. 또한 각 의미 단위를 중심으로 진행성(forward) 도약과 역행성(regressive) 도약이 관찰되었고, 제목 ${\rightarrow}$ 내용 순의 세밀한 응시가 이루어진 이후 Click 여부가 결정되었다. 하지만 평균 Scan path 는 타이틀과 내용의 구분 없이 전체 화면 길이/너비의 50%를 넘지 못하여 축소된 Golden Triangle 형태를 보였다. 본 연구 결과는 웹 검색 결과에 대한 사용자 소비 경향의 특성을 파악하여 향후 좀 더 효율적인 소비를 이끌어내기 위한 인터페이스 설계 방향의 기초 연구로 그 의의가 있다.

• Journal of the Korea Society of Computer and Information
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• v.22 no.12
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• pp.131-136
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• 2017

PLM(Product Lifecycle Management) is an information management system that can integrate data, processes, business systems and human resources throughout the enterprise. BOM(Bills Of Material) is key data for designing, purchasing materials, manufacturing planning and management, which is basic for product development throughout the product life cycle. In this paper, we propose the efficient system to increase the data loading speed and the processing speed when using such large BOM data. We present the performance and usability of IMDG (In Memory Data Grid) for data processing when loading large amounts of data. In the UI, using the pure web grid of JavaScript instead of the existing data loading method can be improve performance of data managing.

• Archives of design research
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• v.14 no.2
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• pp.209-216
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• 2001

With rapid growth of internet uses and the new media, web has become a new medium of communicating and sharing of information. Therefore, the methodology of web interface design must be set to improve the efficiency of communicating and sharing information The study has researched on analyzing method of web interface design for effective uses of web. The study is a precedent research of methodology of web interface design based on the following structures-grouping web contents, information architecture, web page design, structural elements of interface design. Accordingly, the study provides the analyzing method of web interface design with the basis of its structural elements. The analyzing method of web interface design is divided into three steps-grouping of web sites, analyzing structural elements, and evaluation. As a result, grouping and embodying of interface design brings usability guideline for design development as well as collecting of data for examining further results through design processes.

• The Journal of the Korea Contents Association
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• v.11 no.10
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• pp.77-84
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• 2011

Following the increase in the supply of smartphones and the increase in the use of wireless Internet, the online shopping environment is also changing into mobile shopping. However, the domestic mobile shopping services fall short of people's expectations compared to desktop Internet shopping malls. These are mainly due to the restricted screen size and inconvenient data entry of mobile devices, the slow Internet speed, and other restrictive conditions. Accordingly, in this paper, the usability of three main domestic mobile shopping malls was evaluated using a heuristic evaluation method. The factors that must be considered when producing a mobile website, the consideration for the mobile users, and the main functions of a shopping mall, were considered to define an evaluation form. The results of the evaluation were then analyzed to propose the problems of mobile shopping malls and the directions for their improvement.

• Journal of information and communication convergence engineering
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• v.9 no.1
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• pp.100-104
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• 2011

In software system development, an application interface is the main communication platform between human developers and applications. Interaction in any software application requires human's mental and physical activities. Although software systems have increased drastically in diverse sectors and many forms to quench human's needs and satisfactions, human always concern about the ease in usability of the software application so that it can be easily understood and navigated. Since many software developers still focus on the quantity of contents instead of the quality of the interface from the user's point of view, it is important to address human factors need in the early stage of the design and to continue addressing them during the entire stages of the software design for the persistent support of usability. In this paper, we propose the Modified Prototype Model (MPM), which helps the software designers and developers to design user-friendly software systems with easy-to-navigate interfaces by uncovering human factors in a convenient way. Moreover, we propose methods that assist to identify more human factors regarding software design. In this paper, we also study the implications of the proposed model and the proposed methods.