RESUMO
Mobile phones obtained large popularization in Brazil thanks to pre-paid (pay as you go) contracts. This kind of contract represents 82% of mobile phone connections in Brazil, corresponding to 143 million in a total of 174 million mobile phone accesses in the country. In this scenario, a research about the usability of mobile phones with 17 to 24 year old youngsters, living in poor communities, enrolled in the NGO Spectaculu. Usability tests were carried through with 30 youngsters from a NGO in Rio de Janeiro. Was made a extraction of the navigation sequence with data information of input and output from the system. Point Navigation Map was created to track low-income mobile user's interaction.
Assuntos
Telefone Celular , Ergonomia , Análise e Desempenho de Tarefas , Adolescente , Adulto , Brasil , Desenho de Equipamento , Humanos , Aplicativos Móveis , Áreas de Pobreza , Adulto JovemRESUMO
This article is about the risk behavior adopted by pedestrians at crosswalks with traffic light equipment. It was observed that many pedestrians take risk to cross the Presidente Vargas Avenue. This avenue is located in downtown in Rio de Janeiro city, Brazil, and has a heavy vehicular traffic and intense pedestrian flow. Many pedestrians cross the four lanes of avenue dangerously disobeying the traffic light indications. To conduct this research about pedestrian's behavior at crosswalks, a model known as Communication-Human Information Processing Model - C-HIP Model was used. Investigating the stages by C-HIP model perspective, using methods and techniques for each stage, enabled to identify which factors can contribute to pedestrians to disobey traffic signs and adopt a risky behavior in pedestrian crossing.
Assuntos
Ergonomia , Assunção de Riscos , Segurança , Caminhada , Acidentes de Trânsito , Adulto , Brasil , Sinais (Psicologia) , Feminino , Humanos , Masculino , Modelos Psicológicos , MotivaçãoRESUMO
This research deals with the influence of the computer use in schools related to the children posture, in an ergonomic point of view. The research tries to identify probable causes for the children early postural constraints, relating it to the sedentary behavior and the lack of an ergonomic project in schools. The survey involved 186 children, between 8 and 12 years old, students of a private school in Rio de Janeiro-Brasil. An historical and theoretical school furniture research was conducted as well as a survey with the students and teachers, computer postural evaluation, ergonomic evaluation (RULA method), and observations in the computer classroom. The research dealt with the student's perception with respect to the furniture utilized by him in the classroom during the use of the computer, his body complaint, the time he spent working on the school computer and the possibility of the existence of sedentariness. Also deals with the teachers' perception and knowledge regarding ergonomics with reference to schoolroom furniture and its Regulatory Norms (RN). The purpose of the research work is to highlight the importance of this knowledge, having in view the possibility of the teachers' collaboration in the ergonomic adaptation of the classroom environment and in their conscientious opinion during the purchasing of this furniture. A questionnaire was utilized and its results showed some discontent on the part of the teachers with relation to the schoolroom furniture as well as the teachers' scant knowledge of Ergonomics.We conclude with a survey that despite the children had constraints in postural assessments and school furniture needs a major ergonomic action, the time that children use the computer at school is small compared with the time of use at home and therefore insufficient to be the main cause of quantified commitments, thus the study of computer use at home as a development and continuity of this research.
Assuntos
Ergonomia , Decoração de Interiores e Mobiliário , Microcomputadores , Postura , Instituições Acadêmicas , Fenômenos Biomecânicos , Criança , Docentes , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Dor Musculoesquelética/etiologia , Comportamento Sedentário , Estudantes , Fatores de TempoRESUMO
This article is result from a questionnaire about mobile app store usage. The objective of this work was to collect information about user needs and opinion regarding search, purchase and evaluation process in Android Market, Apple App Store, BlackBerry App World and Nokia Ovi Store. The data collected was analyzed to identify the positive and negative usability aspects, if the process to perform these task are any different in those stores and if the users are satisfy with their store or if they have any complains about it. Its covers the brazilian market only.
Assuntos
Comportamento do Consumidor , Armazenamento e Recuperação da Informação , Aplicativos Móveis , Interface Usuário-Computador , Adulto , Brasil , Telefone Celular , Comércio , Demografia , Feminino , Humanos , Comportamento de Busca de Informação , Masculino , Inquéritos e Questionários , Adulto JovemRESUMO
The article presents the processes and the results of the application of some ergonomic techniques, used to evaluate the usability of the virtual learning environment adopted by the Distance Education Center of the Federal Institute of Espírito Santo - Brazil.
Assuntos
Educação a Distância , Ergonomia , Interface Usuário-Computador , Adulto , Humanos , Aprendizagem , Inquéritos e QuestionáriosRESUMO
This paper presents an ergonomic study on the navigation structures and information units of entertainment sites with multimedia content. This research is a case study on the XBOX 360 promotional website. It analyzes the presentation of the content on a grid that simulates the spatial displacement of the screen's elements and evaluates the interaction that the page allows for, from the users' point of view.