• 한국산업정보학회논문지
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• 제17권7호
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• pp.199-208
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• 2012

웹 접근성에 대한 관심의 증가와 필요성 인식으로 인해 현재까지 다양한 접근성 지침과 자동화 평가도구들이 개발되었으나, 많은 선행연구에서 지침과 평가도구에 대한 문제점을 지적하고 있다. 이에 본 연구에서는 웹 표준에 착안하여 프레임 콘텐츠에 대한 웹 접근성 평가모형을 제시 및 검증하였다. 이를 위하여 프레임 콘텐츠에 대한 정의를 바탕으로 웹 표준기술요소를 정리하였으며, XHTML 및 CSS 기반의 프레임 콘텐츠 접근성 평가 모형을 제시하고 그 타당성을 검증하였다.

• 한국멀티미디어학회논문지
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• 제20권2호
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• pp.330-335
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• 2017

We have heard about several keywords of the fourth industrial revolution such as automation, artificial intelligence and connectivity. And electronic publishing systems and ebooks will enable us to experience a new industrial revolution without discrimination. On that level, it is necessary to study a method of automatic accessibility tool for electronic publishing. There are some studies on accessibility standard specifications, accessibility guidelines, and accessibility certificate criteria. but there is little research about automatic inspection tools in electronic publishing area. This paper proposed a library for accessibility inspector of EPUB and its components based on IDPF EPUB accessiblity guidelines and TTA accessibility certificate criteria for reading disabled people. After implementing the library that can be connected to SIGIL, which is the most widely used in Korea, we verified its functionality and its coverage with Korean commercial EPUB files.

• 한국산업정보학회논문지
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• 제18권4호
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• pp.81-87
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• 2013

IT 기술의 발달과 인터넷의 확산으로 웹 접근성에 대한 중요성이 극대화 되고 있으며, 그에 따라 다양한 웹 접근성 관련 연구가 진행되고 있다. 특히 데이터 테이블과 레이아웃 테이블 용도로 사용되는 "Table 요소"는 자동화평가도구의 평가에서 많은 문제점을 가지고 있다. 이에 본 연구에서는 웹 접근성 지침을 기반으로 "Table 요소"에 대한 개선된 평가 알고리즘을 제시하고 그 타당성을 검증하였다.

• International journal of advanced smart convergence
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• 제12권3호
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• pp.127-140
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• 2023

While tools exist for blind people to understand shapes, these are not commercially available nor affordable and often require the assistance of sighted people. Thus, we designed two low-cost grid-based tactile tools using toggle buttons (TogGrid) and cotton balls (CottonGrid). To assess the potential of these as an educational tool, we conducted a user study with 12 people with visual impairments where they were asked to understand and reproduce shapes under different conditions. Although CottonGrid is relatively cheap and easy to make, findings show that TogGrid was perceived to be better in terms of perceived easiness, task completion time, accuracy, and preference in general. Particularly, participants valued TogGrid for enabling them to identify and correct errors. Based on the findings, we provide implications for utilizing toggle buttons for designing educational instruments for learning and expressing shapes for blind people.

• 경영정보학연구
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• 제7권1호
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• pp.81-96
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• 2005

웹사이트의 사용이 일상화 되어감에 따라 컴퓨터를 다루기 힘든 장애인 및 노인들의 웹사이트 정보에 대한 접근성이 강조되고 있다. 노인과 장애인의 정보화 격차를 해소하기 위해 웹 접근성에 대한 인식이 중요시되고 있으나 한국에서는 이와 관련된 분야의 연구가 미미한 실정이다. 본 연구에서는 지금까지의 웹 접근성에 관한 선행 연구와 접근성 평가도구를 분석하여 기존의 웹 접근성 평가의 한계를 지적하고 이를 해결하기 위한 웹사이트 접근성 평가모델을 제안하였다. 특히 웹 접근성 평가방법을 다각적으로 시도하기 위해 1차 평가에서는 자동화 평가도구인 A-Prompt를 이용하였고, 2차 평가에서는 1차 결과를 중심으로 소스분석과 HPR(Home Page Reader) 스크린리더를 통한 수작업(메뉴얼) 평가를 실시하였다. 평가결과를 바탕으로 접근성 오류율을 계산하여 한국과 미국정부 웹사이트의 접근성을 비교분석하고 평가결과를 통해 시사점과 개선방안을 제시하였다.

• 한국CDE학회논문집
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• 제7권3호
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• pp.177-189
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• 2002

For the development of automobile lighting components, various designers, developers and manufacturing personnel are involved, each group needing different software tools. In this Smartlite project, several software tools were developed far product development of the lighting components and then tested using two different user interfaces (UIs); the first was based on a commercial CAD system (SDRCI-DEAS) and the second was based on a web browser. The specific focus of this study was a comparison between the new web-based UIs, and the UIs on commercial CAD systems. The usability data have been collected from the users at Visteon and showed that the web-based UIs provided comparable functionality with the CAD-based UIs in terms of performance and usefulness. For the criteria of accessibility, the web-based tools out-performed the CAD-based tools.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제11권11호
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• pp.5324-5337
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• 2017

In this paper, we investigate the feasibility of interference alignment(IA) in signal space in the scenario of multiple cell and multiple user cellular networks, as the feasibility issue is closely related to the solvability of a multivariate polynomial system, we give the mathematical analysis to support the constraint condition obtained from the polynomial equations with the tools of algebraic geometry, and a new distribute IA algorithm is also provided to verify the accessibility of the constraint condition for symmetric system in this paper. Simulation results illustrate that the accessibility of the constraint condition is hold if and only if the degree of freedom(DoF) of each user can be divided by both the transmit and receive antenna numbers.

• Genomics & Informatics
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• 제20권1호
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• pp.2.1-2.11
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• 2022

The method of single-cell RNA sequencing has been rapidly developed, and numerous experiments have been conducted over the past decade. Their results allow us to recognize various subpopulations and rare cell states in tissues, tumors, and immune systems that are previously unidentified, and guide us to understand fundamental biological processes that determine cell identity based on single-cell gene expression profiles. However, it is still challenging to understand the principle of comprehensive gene regulation that determines the cell fate only with transcriptome, a consequential output of the gene expression program. To elucidate the mechanisms related to the origin and maintenance of comprehensive single-cell transcriptome, we require a corresponding single-cell epigenome, which is a differentiated information of each cell with an identical genome. This review deals with the current development of single-cell epigenomic library construction methods, including multi-omics tools with crucial factors and additional requirements in the future focusing on DNA methylation, chromatin accessibility, and histone post-translational modifications. The study of cellular differentiation and the disease occurrence at a single-cell level has taken the first step with single-cell transcriptome and is now taking the next step with single-cell epigenome.

• 인터넷정보학회논문지
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• 제9권5호
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• pp.1-7
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• 2008

본 논문에서는 시각 장애인을 위한 효율적인 휴대용 점자 시스템을 제안하였으며, 그 설계 및 구현을 설명한다. 시각 장애인이 정보화 기기를 효과적으로 사용하기 위해서는 전용 정보화 기기의 구축, 장애를 고려한 접근성 보장, 교육 지원 등 세 가지 조건이 만족되어야 한다. 본 논문에서는 위의 세 가지 조건을 요구사항으로 정의하고, 이 조건들을 만족하도록 시각장애인을 위한 점자 시스템을 설계하였다. 제안된 시스템에서는 PC에 저장되어 있는 문서나 웹 페이지를 점자와 한글간의 변환 규칙에 따라서 구현한 알고리즘을 통해 데이터를 변환하고, 변환된 데이터를 휴대용 점자 디바이스에게 전송한다. 그리고 휴대용 점자 디바이스는 전자석의 원리를 이용하여 점자를 표현한다.

• 지식경영연구
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• 제17권3호
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• pp.93-116
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• 2016

Knowledge, as a source of firm's competitive edges, has been drawing attention, while numerous enterprises are investing huge amount of assets to foster the right environments for executing knowledge management (KM). As a practical way of such KM, knowledge management systems (KMS) support the creation, diffusion, and utilization of knowledge, which are the tools for practicing such management style. Recently, the customer centers which make the closest contact with the customers are being concerned about the establishment of KMS. Considering the characteristics of real-time problem solving in customer centers during the consultation with the customers, the importance of KMS is paramount to the centers. This study analyzes major factors influencing the success and utilization of the customer center KMS's reestablishment, as an exploratory case study of the reestablishment of KMS in the customer center of K insurance company. First, the characteristic differences between the customer center's KMS and the traditional KMS are discussed, and the triangulation technique is applied to secure objectivity of this case study's findings. Major results of the case study state that, for the success of KMS and improvement of utilization, the followings should be considered preferentially: excellent system quality (accessibility, user convenience, easy searching, speed/menus); high information quality (accuracy, usefulness, timeliness, task-relevance, diversity, degree of specification); appropriate operation strategy and process for the utilization of system (education, training opportunity, appropriate personnel, speed and procedure of approval, compensation/evaluation); and change management via the support from the CEO's level (concern and participation of CEO, will to propel the project, investment, advertisement, etc.). This study provides practical suggestions with respect to factors which should be more carefully dealt with, since still many customer centers have hard time establishing and operating KMS due to lack of previous studies.