A minha namorada Camila Maria, aos meus pais, Plínio e Maria Cecília, a meu irmão Alfredo e a minha tia Neusa.i AgradecimentosAgradeço inicialmente a DEUS, pelo dom da vida e por me acompanhar em todos os momentos.Ao meu orientador, Prof. Dr. José Carlos Maldonado, pelo apoio, sugestões e profissionalismo na orientação durante todo o período deste trabalho.Aos meus familiares, em especial ao meus pais Plínio e Maria Cecília, meu irmão Alfredo, minha tia Neusa e minhas avós Izabel e Maria, pelo amor, incentivo e constante apoio em todos os momentos da minha vida.A minha namorada Camila pelo amor, apoio, carinho, incentivo, etc., os quais foram de fundamental importância para que esse trabalho pudesse ser concluído.Aos demais Professores do grupo de Engenharia A identificação e avaliação de critérios e ferramentas de suporte para o teste de software OO darão subsídios para a definição de novos estratégias de teste e para a especificação e implementação de ferramentas de apoio no contexto de software OO. xi AbstractHaving in mind the great attention and acceptance that have been given to de Object-Oriented (OO) paradigm by researches and developers, one of the current concerns of the ICMC-USP Software Engineering Group is the establishment and validation of testing strategies of OO programs.Among the research interests of the ICMC-USP Software Engineering Group are the Data Flow and Mutation based testing that had their origin in the 70's. Considering that the paradigm OO has been highlighted as one of the software development tendencies, what can be observed by the great number of programs developed in the light of this paradigm, the aim of this work is to characterize the current state of OO software test both in terms of available tools and the underlying techniques and criteria.The identification and evaluation of criteria and tools for the OO software test will provide subsidies for the definition of new testing strategies and for the specification and implementation of supporting tools in the context of OO software.
In this paper, we explore eight Machine Learning (ML) approaches (binary and one-class) to predict the quality of in-car displays, measured using Black Uniformity (BU) tests. During production, the industrial manufacturer routinely executes intermediate assembly (screwing and gluing) and functional tests that can signal potential causes for abnormal display units. By using these intermediate tests as inputs, the ML model can be used to identify the unknown relationships between intermediate and BU tests, helping to detect failure causes. In particular, we compare two sets of input variables (A and B) with hundreds of intermediate quality measures related with assembly and functional tests. Using recently collected industrial data, regarding around 147 thousand in-car display records, we performed two evaluation procedures, using first a time ordered traintest split and then a more robust rolling windows. Overall, the best predictive results (92%) were obtained using the full set of inputs (B) and an Automated ML (AutoML) Stacked Ensemble (ASE). We further demonstrate the value of the selected ASE model, by selecting distinct decision threshold scenarios and by using a Sensitivity Analysis (SA) eXplainable Artificial Intelligence (XAI) method.
Um dos problemas encontrados no teste de programas orientados a objetos é a ordem em que classes são integradas e testadas na presença de ciclos de dependência. Esse problema, também observado em programas orientados a aspectos, provoca aumento do esforço da atividade de teste pela necessidade de implementação de stubs para quebrar os ciclos de dependência. Este trabalho apresenta um conjunto de stubs e drivers coletados durante a condução de um estudo com quatro diferentes estratégias de teste de integração aplicadas a dois diferentes sistemas implementados com aspectos. Também são mostradas decisões de implementação tomadas em relação ao contexto em que os stubs e drivers são usados, além de diretrizes a serem seguidas durante a implementação desses artefatos de software para apoiar o teste de programas orientados a aspectos.
Cite as: Cassol, A.P.V. et al. Climate factors and limnological conditions shaping phytoplankton community in two subtropical cascading reservoirs. Acta Limnologica Brasiliensia, 2017, vol. 29, e17. Abstract: Aim: A series of dams along the course of a river forms a complex cascading reservoir system. The interconnectivity of the dams is perceived with the reduction of turbidity and phosphorus and the increase of specific richness throughout the system. Designing a management system that promotes the integration of biotic and abiotic data is essential to these resources of recognized importance for the population, the country's power generation and watersheds management. The Jacuí River is an important water resource in the state of Rio Grande do Sul, along its upper course, five water reservoirs comprise a cascade system tapped for energy generation and agriculture, but the effects on the phytoplankton community of cascading dams are still unknown. Thus, the present study aimed to investigate spatial and temporal patterns of phytoplankton associated with climatological and limnological characteristics of the Ernestina and Itaúba water reservoirs, located in the upper Jacuí River, RS, Brazil. Methods: Sampling campaigns were carried out seasonally from January 2012 to February 2013, with four sampling stations within each dam and at three different depths. The sampling units were determined according to the three zones of the reservoir: river areas, transition and lake. Results: A total of 91 phytoplankton species were identified in Ernestina and 130 in Itaúba. There was no significant difference between vertical and horizontal patterns, since the community responded to seasonal changes and the specific characteristics of each dam. Conclusions: The specific richness and water transparency increased downstream of the system and changes in water retention time were important for cell density and composition.Keywords: Plankton; seasonality; ecological dynamics; retention time.Resumo: Objetivo: Uma série de represas ao longo do curso de um rio formam o complexo sistema em cascata de reservatórios. A interconectividade dessas represas são percebidas com a redução da turbidez e fósforo e aumento da riqueza de espécie ao longo do sistema. Além disso, cada reservatório possui suas características, bióticas e abióticas, que devem ser avaliadas e utilizadas como instrumento na elaboração de propostas de manejo contínuo das bacias hidrográficas. O rio Jacuí, com cinco represas inseridas ao longo do seu curso superior, é um importante recurso hídrico do estado do RS, explorado para geração de energia e agricultura, no entanto seus efeitos na comunidade fitoplanctônica das represas construídas em cascata ainda é desconhecido. Dessa forma o presente estudo teve como objetivo investigar padrões espaciais e temporais do fitoplâncton associadas às características climatológicas e 2 Cassol, A.P.V. et al.
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