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Generic roles: reducing code replication
Barbosa, Fernando SérgioIn partial fulfillment of requirements for the degree of Doctor of Philosophy in Informatics Enginnering by the Doctoral Program in Informatics Engineering ; For many years the concept of modularity has been considered a very important part in the development of large software systems. Modules help to manage the system’s complexity by decomposing it in smaller parts. These parts can be assigned to individuals ...
Roles as modular units of composition
Barbosa, Fernando Sérgio; Aguiar, AdemarObject oriented decomposition is the most successful decomposition strategy used nowadays. But a single decomposition strategy cannot capture all aspects of a concept. Roles have been successfully used to model the different views a concept may provide but, despite this, roles have not been used as building blocks. Roles are mostly used to extend objects at runtime. In this paper we propose roles as a way to co...
Modeling crosscutting concerns with roles
Barbosa, Fernando Sérgio; Aguiar, AdemarModularization allows the development of independent modules and their reuse. However a single decomposition strategy cannot neatly capture all the systems concerns. Thus some concerns are spread over several modules – the crosscutting concerns. To cope with this we need to have other class composition techniques than those available in traditional Object Oriented programming languages. One of such compositions...
Modeling and programming with roles: introducing JavaStage
Barbosa, Fernando Sérgio; Aguiar, AdemarRoles are not a new concept, but they have been used in two different ways: as modeling concepts in a static view and as instance extensions in a dynamic view. For these views only the dynamic offers supporting languages. The static view, although proving the utility of roles in modeling, does not offer a programming language that allows developers to use roles all the way from modeling to programming. We try t...
Reusable Roles, a test with Patterns
Barbosa, Fernando Sérgio; Aguiar, AdemarAlthough roles have been around for a long time they have not yet reached mainstream programming languages. The variety of existing role models may be a limiting factor. We believe that for roles to be widely accepted they must enhance code reuse. An outcome would be a library of roles. We present and discuss what we feel are the characteristics that a role model must have to enable reusable and player independ...
Análise espectral do sinal eletromiográfico do músculo eretor da espinha obtido...
Barbosa,Fernando Sérgio Silva; Almeida,Camila Cristina Rodeline; Gonçalves,MauroINTRODUÇÃO: A fadigabilidade excessiva dos músculos lombares é um achado comum em pacientes portadores de dor lombar. Por isso, a avaliação da resistência isométrica desses músculos tem sido recomendada nessa população. OBJETIVO: O objetivo deste estudo foi identificar e analisar objetivamente o comportamento da fadiga do músculo eretor da espinha em um teste de resistência isométrica realizado até a exaustão. ...
A proposta biomecânica para a avaliação de sobrecarga na coluna lombar: efeito ...
Barbosa,Fernando Sérgio Silva; Gonçalves,MauroOBJETIVOS: Analisar a fadiga de músculos lombares e determinar as variáveis demográficas relacionadas com a fadiga destes músculos. MÉTODOS: A atividade eletromiográfica (EMG) dos músculos iliocostal direito (IL-D), iliocostal esquerdo (IL-E), multífido direito (MU-D) e multífido esquerdo (MU-E) de 18 voluntários foi captada durante contrações isométricas sub-máximas. Valores de root mean square (RMS) e freqüên...
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