Navegando por Assunto "Engenharia de software"

Agora exibindo 1 - 8 de 8

Acesso aberto (Open Access)
Uma abordagem metodológica para implementação multi-modelos de teste de software adotando o MPT.Br e o TMMi
(Universidade Federal do Pará, 2014-01-20) BRITO NETO, Olavo Nylander; OLIVEIRA, Sandro Ronaldo Bezerra; http://lattes.cnpq.br/2080791630485427
Through the years software quality models and correlated has emerged and gained more space in software development organizations. These models cover the entire development process, or specific areas of the process. Due the test area qualify the result of the products generated with the reduction of defects found during the development and being an area with little attention during this development process. This work presents a methodology for implementing multi-process models of software testing. Emphasizing an approach used to create material support in implementing multi-models applied in models MPT.Br and TMMi, aligning with the present levels of maturity models, emphasizing the methodology and materials generated during this process. Generating inputs that tend to facilitate knowledge adherence to the aforesaid models and facilitating the adaptation of international organizations wishing to know the Brazil’s test culture.
Acesso aberto (Open Access)
Aquisição de serviços de TI como um processo de qualidade no fornecimento de software - estudo de caso de terceirização em medicina transfusional
(Universidade Federal do Pará, 2009-12-22) MIRANDA, Arnaldo José de; OLIVEIRA, Roberto Célio Limão de; http://lattes.cnpq.br/4497607460894318
As a consequence of the continental dimensions of Brazil, the demand of specialized software solutions for organizations in underdeveloped areas require the distribution of operations of Information Technology Outsourcing (ITO) to other regions. As a result, the reducing of costs and the improvement of the acquisition services on Information Technology constitute two main topics nowadays, motivating the notion of multiple partners deeply involved in reciprocal operations and engaged in formal and informal activities such as outsourcing. The outsourced services are diverse and they include the development and maintenance of software through contracts made by organizations located in areas lacking demand for specialized software systems. It is known that the outsourcing of Software and Related Services, which includes the activities of the acquisition and management of the acquisition process are complex and necessary for organizations, especially with regard to the conditions involved in contract. In such cases, the exercise of governance has been an important instrument for, with outsourcing processes, to promote proper management of risk and return of investment. Thus, the process of buying or selling a software product in this environment is an activity that involves a lot of subjective concepts, mainly related to the gathering of products requirements. It is a major challenge when it comes to Modified Off-The-Shelf Products that undergo changes and additions to requirements for each new customer. In this context, aiming to adapt market requirements with the continuous demand of methods and guidelines for software acquisition improvement process, this text explores the key features about the contract, quality control, and the results of the relationships adopted in the implementation of outsourcing projects developed from a distance. We present the results of a case study conducted in a public company for transfusion medicine in the north of Brazil that adopted the outsourced software development process. To conclude, this text presents a discussion about the advantages and limitations of this work, and discusses some future directions of this research.
Acesso aberto (Open Access)
Desenvolvimento de Interface gráfica como suporte para soluções numéricas das equações de Maxwell em coordenadas gerais – 3D
(Universidade Federal do Pará, 2011-05-03) COLARES, Adolfo Francesco de Oliveira; SOUZA SOBRINHO, Carlos Leônidas da Silva; http://lattes.cnpq.br/1450994881555781; OLIVEIRA, Rodrigo Melo e Silva de; http://lattes.cnpq.br/4768904697900863
In this work, we have implemented a graphical user interface (GUI) by using the Nokia Qt library (version 3.0). The interface is designed to simplify the creation of scenarios for executing parallel E.M. Simulations by using the numerical technique Local Non-Orthogonal Finite Difference Time-Domain (LN-FDTD) method, applied to solve Maxwell's equations. The simulator was developed by using the C programming language and parallelized by using threads. This way, the pthread library was employed. The 3D visualization of the scenario and of the corresponding mesh to be simulated is performed by a specially developed program based on the OpenGL specification. In order to improve the development and to achieve the goals of computational design, we have used concepts of software engineering, such as the process model for software prototyping. Depriving the user to interact directly with the source code of the simulation program, the probability of human errors while performing the constructing process of scenarios is minimized. In order to demonstrate the operation of the developed tool, a study regarding lightning-induced voltages on low voltage lines with catenaries is performed. Induced voltages inside a small building (a residence) are also studied.
Acesso aberto (Open Access)
Desenvolvimento de uma biblioteca para geração automática de casos de teste com algoritmos genéticos
(Universidade Federal do Pará, 2023-04-20) ALMEIDA NETO, Adilson; OLIVEIRA, Roberto Célio Limão de; http://lattes.cnpq.br/4497607460894318
In this work a library capable of automatically generating test cases for the Python programming language is developed, these tests are generated utilizing an genetic algorithm which uses an ad-hoc mutation operator based on social interaction. The algorithm is applied with success to the problem of automatically generating software tests, showing promising results when compared to the state of the art, revealing itself as a possible path of exploration when solving this category of problem.
Acesso aberto (Open Access)
Desenvolvimento de uma ferramenta de autoria de conteúdo para aprendizado via web
(Universidade Federal do Pará, 2003-03-27) LOPES, Luiz Alano Alexandre; OLIVEIRA, Roberto Célio Limão de; http://lattes.cnpq.br/4497607460894318
Web has been very used lately for companies and institutions of education as a way to offer learning. The creation of contents for the learning through web is an activity that has demanded human resources specialized in technologies and concepts, so that the contents created are not restricted the tools, platforms and formats of presentation. This work presents the development of a content authoring tool prototype for learning through web, in which the created contents are independents of the authoring tool, platform and presentation formats that are used. Being a development work, a process is defined and its phases and activities are used to organize the job and to register all the taken decisions.
Acesso aberto (Open Access)
LABSQL: laboratório de ensino de SQL
(Universidade Federal do Pará, 2007-12-19) LINO, Adriano Del Pino; FAVERO, Eloi Luiz; http://lattes.cnpq.br/1497269209026542
This work presents a new approach for automatic evaluation of SQL queries. This approach proposes a solution for a challenge to stimulate the student to improve his/her solution: searching, besides an answer that returns a correct result, a query with a complexity next to the optimum solution. This proposal can be used in e-learning environments or in presential education in laboratory activities, including the evaluations. The proposed solution has as advantages: (1) the student receives an instantaneous feedback during a practice programming activity, which allows the student to refactorize his/her solution in direction to a optimum solution; (2) complete integration between the programming concepts teaching with examples of fragments of on-line executable programs; (3) monitoring of students activities (how many examples were executed; in each exercise how many execution attempts were done, etc). This work is the first pass in direction to the construction of an environment, totally attended (for example with automatic evaluation) for teaching of SQL programming language, where the instructor is free of the hard work to correct SQL commands, being able to do more relevant pedagogic tasks. The method, based on statistics and Software Engineering metrics, can be adapted for other languages, such as Java and Pascal. In addition, the LabSQL serves as a laboratory for experimentation of two news techniques, one of evaluation and other of accompaniments that are being searched in several works at the same time: (a) automatic evaluation of discursive conceptual questions, besides to allow the traditional objective questions, (b) method of accompaniment through a montage of evaluation rubrics.
Acesso aberto (Open Access)
Modelo para análise de negociação em projetos de sistemas em uma fábrica de software baseado em pontos de caso de uso
(Universidade Federal do Pará, 2011-03-01) MACIEL, Paulo Henrique de Lima; OLIVEIRA, Roberto Célio Limão de
The systems modeling are being increasingly applied in the means of production for many different purposes, including the area of System Design, in order to set the number of people on the team, analyze the effort, software size and total project costs. This study aims to develop a model to support analysis based on Use Case Points (PCU). For this, we use various research methods including the exploratory research laboratory to create a model of support for analysis.
Acesso aberto (Open Access)
Uma ontologia que estabelece os relacionamentos de dependência entre as práticas de gerência de requisitos e gerência de projetos constantes nos modelos MR-MPS-SW e CMMI-DEV
(Universidade Federal do Pará, 2014-04-16) YOSHIDOME, Ewelton Yoshio Chiba; OLIVEIRA, Sandro Ronaldo Bezerra; http://lattes.cnpq.br/2080791630485427
The models and standards for software quality aim to propose a set of best practices to support the software companies in order to achieve the continuous software process improvements, so, those companies may develop better products. Commonly, the software companies need to hire implementation consultants in order to support the best practices institutionalization. In this context, there are companies and novice consultants that have the difficulty to understand about the practices and the relationship between those practices in quality models. In order to resolve it, we will create a ontology. The ontology is “a set of ordered terms, by hierarchy, in order to describe a domain that can be used as a knowledge base”. Thus, this research proposes a ontology that establish the dependency relationship among the best practices of project management process and requirement management process. In order to achieve this result, we need: (1) a study about the best practices presents in MR-MPS-SW and CMMI-DEV models, in order to find the relationship among the best practices; (2) create a ontology in UML – Unified Modeling Language; (3) define the ontology axioms, in order to consolidate the meaning of dependency relationships; and (4) survey the companies that have official certification, in this survey we collected the evidences used to implement the best practices suggested in quality models, in order to instantiate the ontology for its evaluation. In the end, our outcome was a ontology (structured model and axioms) that establish the relationship of the best practices among Project Management and Requirement Management process.