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Atividades de inspeção no contexto de métodos ágeis
(Universidade Federal de São Carlos, 2004-08-24) Toma, Karina Mitiko; Fabbri, Sandra Camargo Pinto Ferraz; https://lattes.cnpq.br/2204086299921323; https://lattes.cnpq.br/8708755398625625
Software inspection activities have became an important alternative to evaluate software artifacts in order to reach more quality in the development process. To support such activities, generally, reading techniques as OORTs/ProDeS are used, which is a set of techniques for the Object Oriented paradigm. These techniques are applied in a specific development process that uses UML notation, named ProDeS/UML. This process contemplates a gradual development, which facilitates artifacts evaluation as they are generated as well as its evolution. However, this process is directed to a traditional development, where information must be well documented that demands elaboration of different types of artifacts. Taking into account the most recent approach of Agile Methods, the first objective of this work was to evaluate the characteristics of these methods and to make the ProDeS/UML process more practical, in relation to the quantity of generated documentation. This task was realized based on the artifacts used by the main agile methods or other initiatives found in literature that use them jointly with other more traditional approaches. Once established the ProDeS/UML|pr process, the second objective was to verify which reading techniques of the OORTs/ProDeS set remained feasible to apply in this practical process and to elaborate laboratory packages that allow validating this set through experimental studies. Finally, the third objective, derived from the study of these methods, was to explore inspection activities for XP (Extreme Programming) that is considered in practice the most used agile method. An inspection strategy composed of a reading technique set that considers the requirements elicitation activities of XP was established. This strategy can be applied daily, with agility, according to the objectives of this method. Thus, the results of this work are the ProDeS/UML|pr process, the laboratory packages of the reading techniques that support inspection activities for this process and an inspection strategy for XP. In the scope of this work the laboratory package of one of the reading techniques for the ProDeS/UML|pr was evaluated through a feasibility study that was assessed by a group of students. According to this study the lab package seemed appropriate for controlled empirical studies
Influência dos parâmetros de Processamento e da composição na morfologia de resinas ABS
(Universidade Federal de São Carlos, 2004-08-24) Porcel, Fernanda da Silva; Hage Júnior, Elias; https://lattes.cnpq.br/1240692926327687
The present work is about the influence of processing parameter and composition on the morphology of acrylonitrile-butadiene-styrene (ABS)resins. The ABS grades chosen are commercial products with high rubber content, i. e., above 40 wt%. A styrene-acrylonitrile copolymer (SAN) was blended to ABS parental compositions by melt extrusion in order to dilute the overall rubber contents, practice also used at the industry. The pure ABS in powder were processed in three different ways: compression, extrusion and injection molding. In each process there were variation of molding condition, and its influence on morphology formation were studied by transmission (TEM) and scanning (SEM) electron microscopy. Blends of SAN content 2.5, 5, 10, 20, 30 and even 50 wt% of SAN had their morphologies investigated. Besides that, the polymeric components of the blends were chemically, rheologically and thermo-mechanically characterized. The analysis showed how the grafting grade and the amount of free SAN on ABS can be critical on the rheological characteristics of these materials. The pure ABS morphology showed agglomerated rubber particles, big enough to become the system matrix phase. Changes on the processing parameters alter the morphology only on the disperse phase domains size and distribution. The SEM morphology analysis of injection molded samples showed enhanced rubbery phase particles agglomeration at the border regions of the specimen. Adding up to 30 wt% of SAN in ABS wasn t enough to promote phase inversion, yielding a SAN rich phase as the system matrix. This result suggests that the added SAN wasn t miscible into the ABS free SAN.