2013
Autores
Pinho, LM;
Publicação
Ada User Journal
Abstract
2013
Autores
Sousa, PB; Souto, P; Tovar, E; Bletsas, K;
Publicação
2013 IEEE 19TH INTERNATIONAL CONFERENCE ON EMBEDDED AND REAL-TIME COMPUTING SYSTEMS AND APPLICATIONS (RTCSA)
Abstract
We present Carousel-EDF, a new hierarchical scheduling algorithm for a system of identical processors, and its overhead-aware schedulability analysis based on demand bound functions. Carousel-EDF is an offshoot of NPS-F and preserves its utilization bounds, which are the highest among algorithms not based on a single dispatching queue and that have few preemptions. Furthermore, with respect to NPS-F, Carousel-EDF reduces by up to 50% the number of context switches and of preemptions caused by the high-level scheduler itself. The schedulability analysis we present in this paper is grounded on a prototype implementation of Carousel-EDF that uses a new implementation technique for the release of periodic tasks. This technique reduces the pessimism of the schedulability analysis presented and can be applied, with similar benefits, to other scheduling algorithms such as NPS-F.
2013
Autores
Machaqueiro, Helder; Bernardo, Maria do Rosário Matos;
Publicação
CISTI'2013. 8ª Conferência Ibérica de Sistemas e Tecnologias de Informação
Abstract
Sistemas de suporte à decisão, tecnologias de colaboração, integração, business process management (BPM) e reconstrução do processo de decisão são domínios do conhecimento que se interligam e assumem cada vez maior relevância no contexto organizacional. Tendo como objeto de análise um processo de negócio - gestão do ciclo de vida da rede de mediadores - crítico para uma organização, tentámos perceber qual o nível de suporte atual do mesmo em sistemas de informação (SI) e qual o impacto da adoção de um sistema de suporte à decisão em grupo nesse processo de negócio. A investigação consistiu na decomposição do processo atual, através de análise documental, realização de entrevistas e observação participativa aos seus principais atores, identificando as principais entropias que o afetam: dificuldade de materialização dos modelos de decisão; incapacidade de reconstrução do processo de decisão; elevado peso documental; carências de suporte em SI. Isto permitiu concluir que a adoção de uma plataforma de suporte à decisão em grupo teria um impacto positivo ao suportar a totalidade de um processo de negócio que hoje o está apenas parcialmente, potenciando a integração da informação, o envolvimento dos intervenientes e reduzindo o peso documental associado.
2013
Autores
Bernardo, Maria do Rosário Matos;
Publicação
Workshop "Boas práticas em e-learning no DCSG"
Abstract
O Grupo da Qualidade da Secção de Gestão (DCSG - UAb) iniciou funções no ano letivo 2011-2012. Apresenta-se aqui um resumo da atuação do grupo na analise dos resultados dos inquéritos de satisfação aos estudantes dos cursos de gestão (1 licenciatura e 2 mestrados) nos anos letivos 2011-2012 e 2012-2013. São igualmente apresentadas as ações levadas a cabo pelo grupo, com o objetivo de aumentar a qualidade dos cursos ministrados nesta secção, e algumas linhas de orientação para os docentes.
2013
Autores
Backes, L; Schlemmer, E;
Publicação
Revista Diálogo Educacional
Abstract
2013
Autores
Ferreira J.B.; Klein A.Z.; Freitas A.; Schlemmer E.;
Publicação
Cutting-Edge Technologies in Higher Education
Abstract
New mobile platforms, connected seamlessly to the Internet via wireless access, become increasingly more powerful as each day passes. Smartphones and tablet computers, as well as other ultraportable devices, have already gained enough critical mass to be considered mainstream devices, being present in the daily lives of millions of higher education students. Whole firms, devoted solely to developing high-quality and high engagement content to these devices, have emerged, populating an application market of thousands of teaching applications (apps) focused on diverse higher education topics, from physics and calculus to anatomy and law. Many universities throughout the world have already adopted or are planning to adopt mobile technologies in many of their courses as a better way to connect students with the subjects they are studying. These new mobile platforms allow students to access content anywhere/anytime to immerse himself/herself into that content (alone or interacting with teachers or colleagues via web communication forms) and to interact with that content in ways that were not previously possible (via touch and voice recognition technologies, for instance). The study of such technologies and their possible uses for higher education, as well as the impacts they can have on stimulating more active participation and engagement with the course subjects and research in higher education, while at the same time fostering collaboration among students and even different institutions, is the goal of the proposed chapter. Through the evaluation of the teacher/student acceptance and adoption of such mobile technologies, this chapter plans to provide a thorough overview of the possibilities and consequences of mobile learning in higher education environments as a gateway to ubiquitous learning - perhaps the ultimate form of learner engagement, since it allows the student to learn, access and interact with important content in any way or at any time or place she/he might want. Copyright © 2013 by Emerald Group Publishing Limited.
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