Maria Claudia Buzzi

Learn More
The evolution of the Information and Communication Technology (ICT) and the rapid growth of the Internet have impelled the pervasive diffusion of e-Learning systems. This is a great opportunity for visually-disabled people provided that both the interactive environment, created by the Learning Management Systems, and the Learning Objects, created by(More)
Social interaction is important for everyone, and vital for the differently-abled and elderly. Social network applications are causing us to change our ways of communicating and working. We can now make friends all over the world, share ideas and knowledge, search for others’ opinions, and more. Facebook and Twitter are examples of these applications.(More)
The evolution of Information and Communication Technology and the rapid growth of the Internet have fuelled a great diffusion of eCommerce websites. Usually these sites have complex layouts crowded with active elements, and thus are difficult to navigate via screen reader. Interactive environments should be properly designed and delivered to everyone,(More)
Geometry is a traditionally difficult subject to teach to visually impaired subjects. This paper investigates tools to help blind children learn geometry. An accessible vibro-tactile-based android application has been designed to allow children to make freehand drawings and play with geometry, recognizing common geometric shapes or topological(More)
In this paper we analyze the interaction of blind users with Apple touchscreen devices iPad, iPhone and iPod touch, accessible to the visually-impaired thanks to their pre-installed VoiceOver screen reader or magnifier. Specifically, we focus on the gestures offered by VoiceOver to simplify interaction for blind users. A usability inspection of the devices'(More)
Visual maps deliver content in a simple and effective way. They can be useful for various purposes in areas such as street guidance, surrounding information, and education. However, sightless persons are unable to explore visual maps and risk being cut off from several multimedia Web applications. In this paper, starting from accessibility issues of(More)
Interaction via mobile devices is a challenge for blind users, who often encounter severe accessibility and usability problems. The main issues are due to the lack of hardware keys, making it difficult to quickly reach an area or activate functions, and to the new way of interacting via touchscreen. A touchscreen has no specific reference points detectable(More)
We present an analysis of how visually impaired people perform gestures on touch-screen smartphones and report their preferences, explaining the procedure and technical implementation that we followed to collect gesture samples. To that end, we recruited 36 visually impaired participants and divided them into two main groups of low-vision and blind people(More)
This study investigates the use of social networks as a scientific tool for gathering medical data from young subjects while promoting healthier habits. Our first hypothesis is that social networks can facilitate epidemiological studies, reducing time and cost. The second question is whether social networks can enable the collection of data from young and(More)
In recent years podcasting has been in great demand as a recreation and a learning tool. In this paper we describe the design and implementation of a system for automatically converting documents to structured audio. Our prototype is a Web-based service for preparing structured audio material to download on portable mp3 players. The on-line service is(More)