144 research outputs found

    Impact of accessibility barriers on the mood of users with motor and dexterity impairments

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    With the aim of knowing the impact of accessibility problems on persons with motor impairments, we did a user test with this user group. The focus of the test was the analysis of a user’s mood relative to different accessibility barriers comparing two parallel web pages: an accessible one and a non-accessible one. The study identified web forms and Flash elements as the most important aspects for this kind of users. On the one hand these elements are useful to users, and on the other, they raise many accessibility issues. The analysis of results indicate that persons with severe motor impairments are more efficient and effective interacting with web pages, than users with mild motor impairments; a possible explanation for this would be that they use technical aids adapted to their needs while users with mild impairments use standard devices. Overall, users had a positive mood while navigating the accessible web site, and were more negative when interacting with the non-accessible web site. Our investigation contributes to a better understanding of users with motor impairments confronting accessibility barriers.Peer Reviewe

    Impact of web accessibility barriers on users with a hearing impairment

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    Several user tests were carried out on people with a hearing impairment to evaluate the impact of different web accessibility barriers on two similar web sites, one accessible and the other not accessible. The tests' focus was to analyze users' moods when faced with different accessibility barriers. Results show "complex text" and "multimedia content without text alternative" as the most critical barriers for users with this profile. Our investigation contributes to a better understanding of users when confronting accessibility barriers, and to emphasize the need of web content authors to use plain language and to provide captions and sign language alternatives in video content

    El vídeo sense barreres com a suport a la docència en educació superior

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    This communication introduces the project MQD 2010MQD00008 which consists in a pilot trial of editing an accessible video in an academic context. This project involves the creation of a video and a slide presentation to increase the awareness of accessibility in multimedia, the creation of subtitles and audiodescriptions, the publication of these resources in mainstream web publishing platforms and the customization of some existing accessible video players. From those experiences the project will publish a set of guidelines for creating accessible video. As a result we will obtain the awareness materials, the source code of the adapted players and the guidelines for creating accessible video

    Impact of web accessibility barriers on users with a hearing impairment

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    Several user tests were carried out on people with a hearing impairment to evaluate the impact of different web accessibility barriers on two similar web sites, one accessible and the other not accessible. The tests’ focus was to analyze users’ moods when faced with different accessibility barriers. Results show “complex text” and “multimedia content without text alternative” as the most critical barriers for users with this profile. Our investigation contributes to a better understanding of users when confronting accessibility barriers, and to emphasize the need of web content authors to use plain language and to provide captions and sign language alternatives in video conten

    EvaluaciĂłn de usabilidad y accesibilidad de un conjunto de dispositivos interactivos denominados Puntos de InformaciĂłn Ciudadana

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    Este trabajo describe el proceso y el análisis de los resultados de un proyecto de evaluación de la usabilidad y accesibilidad de un conjunto de dispositivos interactivos denominados Puntos de Información Ciudadana. Estos son unos terminales que el Ayuntamiento de Lleida ha distribuido en diferentes localizaciones estratégicas de la ciudad, con el objetivo de facilitar el uso de servicios y sistemas de información que el consistorio ofrece a sus ciudadanos. La iniciativa sirve además para acercar las TICs a todas las capas sociales y disminuir la fractura tecnológica entre la población. Los puntos clave del proyecto residen en los parámetros a considerar para realizar una evaluación a este tipo de dispositivos (evaluación estrechamente relacionada al contexto de interacción) y la forma de aplicar las metodologías de evaluación de la usabilidad y accesibilidad para este tipo de contextos

    Modelado de procesos colaborativos extendiendo elementos de la notaciĂłn HAMSTERS

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    Existe gran número y variedad de procesos para alcanzar un determinadoobjetivo, sin embargo, una buena cantidad de ellos han sido concebidos para serllevados a cabo en ambientes de trabajo individual. Por tal razón, desde el ámbitode la Ingeniería de la Colaboración surge la Metodología para el Desarrollo deProcesos Colaborativos, mediante la cual se obtiene la especificacióncolaborativa de un proceso determinado. Esta metodología provee el Modelo deFacilitación del Proceso (MFP) para representar el flujo de las actividades queconforman el proceso colaborativo especificado, el cual ha sido complementado apartir de una serie de elementos que ofrece la notación HAMSTERS (Humancentered Assessment and Modeling to Support Task Engineering for ResilientSystems), con el fin de contribuir principalmente a la comprensión, entendimientoy uso futuro del mismo. Así, este artículo presenta una evaluación preliminar delos elementos incluidos al MFP mediante un caso de estudio en el que se comparaun MFP tradicional con uno que incluye elementos de HAMSTERS
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