This article presents the results of an experience of SMS (Short Message Service) use to support teaching and learning in face to face undergraduate courses (Computer Sciences and Management) in a Brazilian university. The students' perceptions regarding the use of this technology were assessed via a questionnaire answered by the 143 students that participated of [...]
The digital mediation resources used in Distance Education can hinder the teacher's perception about the student's state of mind. However, the textual expression in natural language is widely encouraged in most Distance Education courses, through the use of Virtual Learning Environments and other digital tools. This fact has motivated research efforts in order to identify [...]
The evolution of computing technology and wireless networks has contributed to the miniaturization of mobile devices and their increase in power, providing services anywhere and anytime. In this scenario, applications have considered the user’s contexts to make decisions (Context Awareness). Context-aware applications have enabled new opportunities in different areas, for example, education, games and entertainment, [...]
This article proposes Hefestos, an intelligent system applied to ubiquitous accessibility. This model uses ubiquitous computing concepts to manage accessibility resources for people with disabilities. Among the concepts employed, context awareness, user profiles and trails management can be highlighted. The paper proposes an ontology for accessibility and delineates scenarios of its application in everyday life [...]
The cargo transport represents the largest share of logistics costs in most companies. Consequently, companies are investing in tracking and tracing systems aiming to improve services, reduce costs and ensure the safety in cargo transportation. To play a part in this area, we propose in this article SafeTrack, a model for logistics management based on [...]
O monitoramento de entidades para determinar uma situação é uma aplicação interessante para diversas áreas. Pode-se utilizar dados obtidos de sensores, disponíveis em um ambiente, para descrever o contexto dos elementos presentes. Nesse âmbito, o presente trabalho tem como finalidade apresentar o Onisciente, um modelo que utiliza a informação de um conjunto de sensores que [...]
Distance Education courses are present in large number of educational institutions. Virtual Learning Environments development contributes to this wide adoption of Distance Education modality and allows new pedagogical methodologies. However, dropout rates observed in these courses are very expressive, both in public and private educational institutions. This paper presents a Learning Analytics system developed to [...]
A necessidade do professor buscar e selecionar materiais educacionais adequados para sua turma é um fato comum no meio educacional. Entretanto, a grande disponibilidade de materiais, a heterogeneidade dos perfis dos alunos e a diversidade de atividades pedagógicas que podem ser realizadas, tornam esta tarefa bastante trabalhosa. Neste cenário, este artigo propõe um modelo de [...]
Ubiquitous computing aims to make tasks that depend on computing transparent to the users, providing resources and services anytime and anywhere. Currently, libraries have sought to position themselves closer to their users, by adopting ubiquitous technologies. This paper presents an intelligent model to support ubiquitous libraries called U-Library. U-Library specification focuses on relevant aspects to [...]
A segurança no trânsito é uma área que se preocupa tanto com a redução dos acidentes quanto com o atendimento prestado às vítimas. Diversas iniciativas são propostas para colaborar com a redução dos acidentes, tais como: fiscalização, campanhas de conscientização e equipamentos de auxílio aos condutores. Outras iniciativas para prevenção e proteção são propostas pelos [...]