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Publicações

Publicações por Letícia Pereira

2017

Web Widgets Barriers for Visually Impaired Users

Autores
Seixas Pereira, L; Archambault, D;

Publicação
HARNESSING THE POWER OF TECHNOLOGY TO IMPROVE LIVES

Abstract
Currently, websites are mainly composed of web widgets, dynamic elements and updatable sections-like autosuggest list, carousel, slideshow etc. In order to contribute with the development of accessible rich internet applications, this work aims to better understand the interaction of severely visually impaired users with these pages, gathering their main barriers and difficulties.

2018

Correlating Navigation Barriers on Web 2.0 with Accessibility Guidelines

Autores
Pereira, LS; Archambault, D;

Publicação
COMPUTERS HELPING PEOPLE WITH SPECIAL NEEDS, PT I

Abstract
The constant emergence of new resources and interaction possibilities brought by web 2.0 brings a constant urge of keeping in track how those new elements can affect the interaction of people with disabilities and how far current re-search has managed to address existing problems. This paper presents the results of an empirical study designed to gather navigation barriers affecting blind people when interacting with some widely used web widgets – such as Popup windows, Auto Suggest Lists, etc. The aim is to correlate those barriers with WCAG 2.0 and ARIA guidelines. From this point of view, it is possible to determine which barriers are being covered by current guide-lines and which ones are still on the wild. As conducting users’ evaluations are really costly, the more barriers can be eliminated beforehand, the more useful those sessions can be.

2022

Authoring accessible media content on social networks

Autores
Pereira, LS; Coelho, J; Rodrigues, A; Guerreiro, J; Guerreiro, T; Duarte, C;

Publicação
PROCEEDINGS OF THE 24TH INTERNATIONAL ACM SIGACCESS CONFERENCE ON COMPUTERS AND ACCESSIBILITY, ASSETS 2022

Abstract
User-generated content plays a key role in social networking, allowing a more active participation, socialisation, and collaboration among users. In particular, media content has been gaining a lot of ground, allowing users to express themselves through different types of formats such as images, GIFs and videos. The majority of this growing type of online visual content remains inaccessible to a part of the population, in particular for those who have a visual disability, despite available tools to mitigate this source of exclusion. We sought to understand how people are perceiving this type of online content in their networks and how support tools are being used. To do so, we conducted a user study, with 258 social network users through an online questionnaire, followed by interviews with 20 of them-7 blind users and 13 sighted users. Results show how the different approaches being employed by major platforms may not be sufficient to address this issue properly. Our findings reveal that users are not always aware of the possibility and the benefits of adopting accessible practices. From the general perspectives of end-users experiencing accessible practices, concerning barriers encountered, and motivational factors, we also discuss further approaches to create more user engagement and awareness. © 2022 Owner/Author.

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