Ana Estela Antunes da Silva

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The computationally challenging problem of reconstructing the phylogeny of a set of contemporary data, such as DNA sequences or morphological attributes, was treated by an extended version of the neighbor-joining (NJ) algorithm. The original NJ algorithm provides a single-tree topology, after a cascade of greedy pairing decisions that tries to(More)
This paper highlights the importance of software maintenance, specifically the UML (Unified Modeling Language) diagrams, created and changed, especially during the tasks of analysis and design of software. The main idea of this paper is to formalize the software maintenance phase in order to motivate the maintenance documentation of these diagrams taking(More)
Resumo. O objetivo deste trabalho é apresentar um modelo de avaliação de especificações semi-formais de requisitos de software baseado na Teoria dos Conjuntos Nebulosos. Especificações semi-formais normalmente são apresentadas como um conjunto de diagramas onde os requisitos do software são declarados. Especialistas do domínio do problema e engenheiros de(More)
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