With increasing of life expectancy innovative solutions that ensurewell-being of the seniors become most needed. In this context, inorder to deny the main difficulties reported by the senior public withthe use of mobile devices, we propose a technology entirely basedon voice interactions and we name this project of Guardian. Theessence of the project is to provide, through a mobile application, aplatform with a set of intelligent agents focused on the well-beingof the older adults. In this work the mains objectives to analyze andevaluate the usability of the Guardian and the cultural impacts ofthe technology. For the data collection, video recordings were used,a questionnaire that identifies the socio-technological profile of theresearch participants and the system usability scale (SUS).
Com o aumento da expectativa de vida, soluções inovadoras que garantem o bem-estar dos idosos se tornam mais necessárias. Nesse contexto, visando negar as principais dificuldades relatadas pelo público idoso com o uso de dispositivos móveis, propomos uma tecnologia inteiramente baseada em interações de voz e nomeamos esse projeto de Guardião. A essência do projeto é fornecer, por meio de um aplicativo móvel, uma plataforma com um conjunto de agentes inteligentes focados no bem-estar dos idosos. Neste trabalho, os principais objetivos são analisar e avaliar a usabilidade do Guardião e os impactos culturais da tecnologia. Para a coleta de dados, foram utilizadas gravações em vídeo, um questionário que identifica o perfil sócio-tecnológico dos participantes da pesquisa e a escala de usabilidade do sistema (SUS).
Context: Empirical studies (ES) and systematic reviews (SR) play an essential role in the Human-Computer Interaction (HCI) field as its focus is on evaluating the end-user and usability of software solutions and synthesizing the evidence found by the HCI community. Even though the adoption of empirical evaluation techniques and SR has gained popularity in recent years, the consistent use of a methodology is still maturing. Goal: This study aims to provide a qualitative and quantitative assessment of the current status of ES and SR presented in the research papers published at the proceedings of the Brazilian Symposium on Human Factors in Computing Systems (IHC Symposium). Method: We conduct an empirical study on the papers over the 18 editions in the IHC Symposium to answer four research questions. Our study proposes a protocol to identify and assess ES and SR reported in the papers published at the IHC Symposium. Results: From the sample of 259 studies, we find 131 ES and SR (~51%). We have characterized and categorized the ES into case studies, experiments, and surveys. Further, we found evidence that these studies' quantity and quality have been increased over the IHC Symposium editions, and almost half of these studies give detailed information making possible their replication. Conclusion: We hope that each study's characterization can support the conduction of new ES and SR by the HCI Brazilian community, producing more reliable results and reducing or eliminating biases.
Education in Brazil has reflected in students' poor academic performance. To reverse this scenario, we propose a technological ecosystem for classroom management which we call Classroom Management (GSA, acronym in Portuguese for Gestão de Sala de Aula). The technology focuses on increasing teenagers' performance and reducing dropout rates. The GSA promotes student engagement in classroom activities; allows the monitoring of students while performing these activities; creates channels of communication between teacher and student; automatically addresses the level of understanding of the class; promotes student participation in class discussions. We tested the GSA and got promising results: 1) For more than seventy percent of the students, the use of technology made them understand the subject better; 2) 85% of them reported that the GSA increased their participation in the classroom activities; 3) For more than 90% of the students, the class has become more interesting, and; 4) 88% of them would like to use the system in all disciplines. For teachers, the GSA: 1) Has not become an object of distraction in the classroom (opinion, 92% of them); 2) It made the students more participative (89%); 3) It made the class more dynamic (82%) and 4) Would like to use the GSA in all their classes (81%).
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