• Title/Summary/Keyword: Mobile Accessibility

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Implementation of Interface to Support Mobile Accessibility Using Speech I/O APIs (음성 입출력 API를 이용한 모바일 접근성 지원 인터페이스 구현)

  • Oh, Seungchur;Yun, Young-Sun
    • KIPS Transactions on Software and Data Engineering
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    • v.2 no.1
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    • pp.71-80
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    • 2013
  • Due to the increased use of mobile devices, there is a lot of discussion on mobile accessibility. Mobile accessibility means that everyone, who includes the disabled, the elderly people, can easily use the functions of mobile devices. In this paper, we presented and implemented a mobile interface using a speech I/O APIs to improve the accessibility. The proposed interfaces are implemented on Android platforms and they used speech recognition and text-to-speech APIs supported as built-in services. In addition, to facilitate the internet access for visually impaired or blind people, we also implemented the web browsing application (web reader).

What Happens When Games Users Have a Tool to Play Better: The effect of mobile accessibility to game user's usage duration and game involvement

  • Lee, Bo-Gyeong;Jeon, Seong-Min
    • 한국벤처창업학회:학술대회논문집
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    • 2017.04a
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    • pp.51-51
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    • 2017
  • In the domain of IS, game was used as a tool to enhance the results of decision making, education and more. In another stream of research, researchers focused on revealing the motive of people playing games. This study focuses on the effect of the tool; increased accessibility via mobile, to online game using patterns and behaviors. Due human reaction towards competition, technology acceptance and the online game's gambling traits, it is expected that the increased mobile accessibility (tool) will increase and intensify the game playing behavior. Also, it is expected that the in-game purchase will increase as well. In depth interview with both game service providers and players is planned to confirm that the mobile version acted as a tool to increase accessibility, rather than a additional game. Survey along with an interview is to be conducted to find relevant play and spending patterns if they are to exist.

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A Study on Development of Enhancement Guidelines of Smart Application Accessibility for the Disabled (장애인을 위한 스마트 애플리케이션 접근성 향상 가이드라인 개발 연구)

  • Jun, Woochun
    • Journal of The Korean Association of Information Education
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    • v.19 no.1
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    • pp.69-76
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    • 2015
  • In current information society, there is a barrier called digital divide. Due to this barrier, the disabled have difficulties to communicate with the world. Recently, with advanced smart techniques, smart devices become necessity for the disabled. Currently improvements of smart application accessibility become a great concern for the disabled. The purpose of this paper is to present some guidelines for enhancing smart application accessibility for the disabled. The enhancement guidelines are developed based on the existing mobile accessibility guidelines and modified for better adaptability for the disabled. Our principles are as follows: minimizing blue light emission from smart devices, automatic focus on input window, action trace, font color change, emergency notification by motion, gesture recognition, control location, scrolling avoidance, auditory service for visual warning, and icon literation.

A Case Study on the Success Factors of B2C Reverse Auction Business Model (사례 연구를 통한 B2C 역경매 사업 모델의 성공 요인 분석)

  • Kim, Changhee;Lee, Gyusuk;Kim, Soowook
    • Journal of Information Technology Services
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    • v.15 no.3
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    • pp.247-263
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    • 2016
  • The purpose of the study is to derive success factors of B2C reverse auction business model, a business model contributes to the recent innovative practices in e-commerce and service sector. Electronic reverse auction has been traditionally used to ensure the procurement convenience and purchasing efficiency in B2B or B2G settings, however, e-RA is now expanding its basis toward B2C commerce industry along the huge success of an online e-RA travel service provider Priceline.com. Recently, B2C e-RA business model is getting the spotlight in the Korean venture industry with a variety of startups in diverse areas. However, e-RA does not work perfect in all kinds of trade settings. Therefore, we conducted a multiple case study to find out the success factors of B2C business model as follows : First, large supplier basis is an important factor that constructs a quasi-perfect competition environment. Second, the high online and mobile accessibility or e-readiness of Korean consumers was also a critical aspect of the success of e-RA. Lastly, e-RA performs best when the supplier switching cost is low and the trading occurs infrequently.

Designing a Vibrotactile Reading System for Mobile Phones

  • Chu, Shaowei;Zhu, Keying
    • Journal of Information Processing Systems
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    • v.14 no.5
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    • pp.1102-1113
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    • 2018
  • Vibrotactile feedback is widely used in designing non-visual interactions on mobile phones, such as message notification, non-visual reading, and blind use. In this work, novel vibrotactile codes are presented to implement a non-visual text reading system for mobile phones. The 26 letters of the English alphabet are formed in an index table with four rows and seven columns, and each letter is mapped using the codes of vibrations. Two kinds of vibrotactile codes are designed with the actuator's on and off states and with specific lengths (short and long) assigned to each state. To improve the efficiency of tactile perception and user satisfaction, three user experiments are conducted. The first experiment explores the maximum number of continuous vibrations and minimum vibration time of the actuator's on and off states that the human can perceive. The second experiment determines the minimum interval between continuous vibrations. The vibrotactile reading system is designed and evaluated in the third experiment according to the results of the two preceding experiments. Results show that the character reading accuracy reaches 91.7% and the character reading speed is approximately 617.8 ms. Our method has better reading efficiency and is easier to learn than the traditional Braille coding method.

Voice Activity Detection Algorithm using Wavelet Band Entropy Ensemble Analysis in Car Noisy Environments (문서 편집 접근성 향상을 위한 음성 명령 기반 모바일 어플리케이션 개발)

  • Park, Joo Hyun;Park, Seah;Lee, Muneui;Lim, Soon-Bum
    • Journal of Korea Multimedia Society
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    • v.21 no.11
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    • pp.1342-1352
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    • 2018
  • Voice Command systems are important means of ensuring accessibility to digital devices for use in situations where both hands are not free or for people with disabilities. Interests in services using speech recognition technology have been increasing. In this study, we developed a mobile writing application using voice recognition and voice command technology which helps people create and edit documents easily. This application is characterized by the minimization of the touch on the screen and the writing of memo by voice. We have systematically designed a mode to distinguish voice writing and voice command so that the writing and execution system can be used simultaneously in one voice interface. It provides a shortcut function that can control the cursor by voice, which makes document editing as convenient as possible. This allows people to conveniently access writing applications by voice under both physical and environmental constraints.

Accessibility Analysis of Android-based Smart Phones Targeted at People with Upper Limb Dysfunctions (상지기능 장애인을 대상으로 한 안드로이드 기반 스마트 폰의 입력 접근성 분석)

  • Kim, Kyung Sik;Song, Byung Seop
    • Journal of rehabilitation welfare engineering & assistive technology
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    • v.10 no.4
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    • pp.267-272
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    • 2016
  • In the era of ultra high speed information communication technology represented by Smart phone and Tablet PC, the disable and the aged people came to be in a position of so-called 'relatively weak people' in the field of information communication due to inconvenience of use and difference in information acquisition and processing ability. Thus, a survey was conducted on Smart phone accessibility items based on previous studies of the disabled with crippled disorder, brain lesions, myelopathy and muscular disabilities having more inconvenience relatively in their use of smart phone due to upper limb dysfunctions. Especially, people with upper limb dysfunctions with relatively weak grip had big inconvenience in the conditions of uses requiring actions such as grabbing and rotating the devices, and due to the characteristics of touch screen input method of Smart phone, they had big inconvenience due to a lack of a guidance for keyboard in input. As a result of questionnaires by the type of disability, it turned out that severe myelopathy causes the most inconvenience in using smart phone.

An Analysis and Web Accessibility Assessment of Mobile Service of University Libraries (대학도서관의 모바일 서비스 사례 분석 및 웹 접근성 평가에 관한 연구)

  • Gu, Jung-Eok
    • Journal of the Korean Society for Library and Information Science
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    • v.45 no.1
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    • pp.75-101
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    • 2011
  • With the popularization of smartphones, the mobile demand for information from libraries is increasing and mobile library service will soon be quired. This study analyzed the mobile library services for the mobile webs established by 4 university libraries in Korea and 56 belonging to ARL in the United States. It examined 42 mobile applications developed by universities and university libraries in Korea, and 18 mobile applications developed by the universities and university libraries belonging to ARL in the United States. Mobile accessibility was assessed by conducting mobileOK test for the mobile websites of the same libraries. The study shows that university libraries in Korea should establish mobile websites focusing on key contents which reflect the demand for mobile information of users, and secure mobile web accessibility which the users could conveniently use.

Mobile Voice Note File Management Service For Improving Accessibility of the Blind (전맹인의 접근성 향상을 위한 모바일 음성 메모 파일 관리 서비스)

  • Lim, Soon-Bum;Lee, Mi Ji;Choi, Yoo Jin;Yook, Juhye;Park, Joo Hyun;Lee, Jongwoo
    • Journal of Korea Multimedia Society
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    • v.22 no.11
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    • pp.1215-1222
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    • 2019
  • Recently, people with disabilities also search for and collect information from the web through smart devices, and save collected information on smart devices or take notes. For non-disabled people, various memo applications are provided on the market, so it is more convenient to choose according to their preference. However, existing memo services are limited for use by blind people due to the importance of visual information. The problem with blind people when using smart devices is that the screen is not recognized, so it is not possible to check in which location the menu of the application exists. In addition, it is difficult to input and manipulate text, and systematic file management and control are not possible. Therefore, in this paper, we propose the development of voice memo service that blind people can use only voice and hearing information and can operate menu with Bluetooth remote controller. We will develop a system that includes a comprehensive voice file management function for storing, searching, playing, and deleting files, rather than simply storing voice files.

A Study on Individual User's Preference for Cloud Storage Service (클라우드 스토리지 서비스에 대한 개인 사용자의 선호 요인 연구)

  • Lee, Sewon;Hong, Ahreum;Hwang, Junseok
    • Journal of Technology Innovation
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    • v.23 no.1
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    • pp.1-36
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    • 2015
  • The purpose of this research is to find individual user's preference for cloud storage service such as Daum Cloud, Naver N-Drive, GoogleDrive, Dropbox, SkyDrive and iCloud. Through literature reviewed and pilot tests, 6 attributes of cloud storage service (storage capacity, perceived cost, collaboration, accessibility, social influence and perceived security) were selected and all 6 attributes had significant effects on the preference of cloud storage service by conjoint analysis. The results shows that the user's willingness to pay is estimated 10,553 won for the free storage, 4,646 won for the function for mobile accessibility, and 2,443 won for more reliable cloud computing service provider. This study has significance to apply conjoint analysis with economic, technological, and environmental factors to cloud storage service (SaaS) and shed light on policy promotion of next generation of cloud computing ecosystem by user perception with willingness to pay on the storage service.