Processo de seleção de sistemas integrados: possibilidades de modelagem com base na análise de decisões

Trata do problema da seleção de Sistemas Integrados, ou ERP (Enterprise Resource Systems), investigando o processo especificamente sob o ponto de vista da Análise de Decisões. Procura analisar a associação entre a satisfação tanto com o Sistema Integrado selecionado quanto com a forma em que foi estruturado o próprio processo de seleção, com variáveis especificamente selecionadas para tal, representativas, entre outros, de grupos de critérios de decisão e características específicas do processo de seleção, relacionadas, estas últimas, a questões como o tratamento dado ao fator risco e ao possível caráter coletivo da decisão. Questiona a possibilidade de modelagem do processo de seleção de Sistemas Integrados, a partir da proposta normativa oferecida pela Teoria da Utilidade, e da suposta existência de um gap ou distância entre esta proposta e a prática naquele processo de seleção. Propõe um modelo mental genérico que procura explicar o modo como os agentes decisórios abordam o problema de seleção de sistemas integrados. Apresenta e propõe um modelo dinâmico que justificaria a existência do gap acima mencionado a partir da incapacidade do modelo mental genérico em apreender toda a complexidade inerente ao problema de seleção de sistemas integrados.

Avaliação da produção de sedimento na bacia hidrográfica do rio Potengi através do modelo SWAT

Anthropic disturbances in watersheds, such as inappropriate building development, disorderly land occupation and unplanned land use, may strengthen the sediment yield and the inflow into the estuary, leading to siltation, changes in the reach channel conformation, and ecosystem/water quality problems. Faced with such context, this study aims to assess the applicability of SWAT model to estimate, even in a preliminary way, the sediment yield distribution along the Potengi River watershed, as well as its contribution to the estuary. Furthermore, an assessment of its erosion susceptibility was used for comparison. The susceptibility map was developed by overlaying rainfall erosivity, soil erodibility, the slope of the terrain and land cover. In order to overlap these maps, a multi-criteria analysis through AHP method was applied. The SWAT was run using a five year period (1997-2001), considering three different scenarios based on different sorts of human interference: a) agriculture; b) pasture; and c) no interference (background). Results were analyzed in terms of surface runoff, sediment yield and their propagation along each river section, so that it was possible to find that the regions in the extreme west of the watershed and in the downstream portions returned higher values of sediment yield, reaching respectively 2.8 e 5.1 ton/ha.year, whereas central areas, which were less susceptible, returned the lowest values, never more than 0.7 ton/ha.ano. It was also noticed that in the west sub-watersheds, where one can observe the headwaters, sediment yield was naturally forced by high declivity and weak soils. In another hand, results suggest that the eastern part would not contribute to the sediment inflow into the estuary in a significant way, and the larger part of the sediment yield in that place is due to anthropic activities. For the central region, the analysis of sediment propagation indicates deposition predominance in opposition to transport. Thus, it s not expected that isolated rain storms occurring in the upstream river portions would significantly provide the estuary with sediment. Because the model calibration process hasn t been done yet, it becomes essential to emphasize that values presented here as results should not be applied for pratical aims. Even so, this work warns about the risks of a growth in the alteration of natural land cover, mainly in areas closer to the headwaters and in the downstream Potengi River

Análise de decisão multicritério na localização de usinas termoelétricas utilizando SIG

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Measuring the efficiency of outsourcing: An illustrative case study from the aerospace industry

Outsourcing is related to the action which an organization deals with its suppliers through a kind of business contract where a specific activity or service has been hired to be made. The outsourcing of some activities has become a common practice in the industry, nowadays. It reduces costs, significantly, in the production process and, at the same time, adds some values to the business organization. However it is necessary to measure the performance of these activities. Data Envelopment Analysis (DEA) is a non-parametric method useful to measure comparative performance. It has a wide range of applications measuring comparative efficiency. The Analytic Hierarchy Process (AHP) is a multiple criteria decision-making method that uses hierarchic structures to represent a decision problem and then develops priorities for the alternatives based on the decision-maker's judgments. This paper presents an integrated application based on DEA and AHP to evaluate the efficiency of subcontracted companies in a Brazilian aerospace factory. © 2007 Springer-Verlag London Limited.

Zoneamento geoambiental da região compreendida pelas folhas topográficas São José dos Campos e Jacareí-SP

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Utilização da lógica difusa na caracterização de áreas favoráveis à disposição de resíduos sólidos no município de Americana (SP)

Pós-graduação em Geociências e Meio Ambiente - IGCE

Proposta de modelo conceitual de QFD integrado com AHP, modelo de Kano e análise SWOT no desenvolvimento de produto

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Modelagem da paisagem orientada ao processo decisório da gestão socioambiental na bacia hidrográfica do rio Manso (MT)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Análise de um conjunto de procedimentos metodológicos para a delimitação de corredores verdes (Greenways) ao longo de cursos fluviais

Pós-graduação em Geociências e Meio Ambiente - IGCE

Energetic-environmental assessment of a scenario for Brazilian cellulosic ethanol

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Da prescrição radiográfica: uma análise em medicina bucal

A redução da dose de radiação ao paciente é aceita em Radiologia Odontológica, com a finalidade de diminuir os riscos associados ao exame radiográfico. Para atingir este objetivo, além do avanço tecnológico ocorrido nas últimas décadas, devemos considerar a importância do Critério de Seleção para o paciente e da prescrição radiográfica na indicação correta do tipo de radiografia necessária para cada um deles. O objetivo deste trabalho foi avaliar a prescrição radiográfica de pacientes atendidos pelo Serviço de Medicina Bucal da Faculdade de Odontologia de Araraquara - UNESP durante o período de 1989 a 1993. Selecionamos 396 prontuários que constituiu a totalidade dos que continham exames radiográficos. Para a análise da prescrição radiográfica, consideramos as informações obtidas da ficha clínica e da interpretação das radiografias, utilizando os Critérios de Seleção e a análise de decisão clínica. Os resultados demonstraram um alto índice de pacientes com prescrição incorreta (44,0%); tendo em 24,7% dos pacientes ocorrido mais de uma radiografia prescrita incorretamente. Com relação ao tipo de técnica com prescrição incorreta, em 31,6% dos pacientes foi realizada a radiografia panorâmica, vindo a seguir a oclusal (28,7%), outro (17,2%) e a associação da panorâmica e oclusal (12,6%). Pacientes portadores de doenças e alterações de tecido mole tiveram a mais alta freqüência de prescrições incorretas, seguidos pelos portadores de doenças das glândulas salivares (13,5%) (incluindo os tumores); outros (10,1%); distúrbios da A.T.M. (9,0%); inflamação e infecção dos maxilares (6,8%); tumores benignos (5,6%) e tumores malignos (5,6%). Em 62,9% dos pacientes, o exame radiográfico contribuiu para o diagnóstico e tratamento. A alta porcentagem de prescrição incorreta encontrada evidencia a necessidade de... (Resumo completo, clicar acesso eletrônico abaixo).

Auxílio do geoprocessamento para a geração do mapa de suscetibilidade à erosão: o caso do córrego Mandu, Rio Claro/SP

The mining of sand, currently, is essential for urban growth, by providing input for the building industry. The consequences of this mining activity to environmental triggers may be severe and irreversible. Among the major impacts caused by sand mining the riparian vegetation removal is detached. The riparian vegetation is essential for balance and maintaining the local ecosystem. For all that had been shown, is possible to verify the importance of environmental studies in areas wich there are mining. This study aimed specially to assess environmental impacts triggered by a mining, located near the headwaters of the stream Mandu, situated in Ajapi, District of Rio Claro-SP. For this purpose, we used remote sensing techniques and GIS to produce thematic maps of slope, pedology, geology, land use and occupation of the soil, and riparian vegetation, using the capabilities of GIS / ArcGIS. The slope map was based on data from the Cartographic IGC 1979, scale 1:10,000. For the production of pedological and geological maps were used Semi-Detailed soil survey of the state of São Paulo, 1981 (1:100,000) and the Geological Map of Zaine (1994), scale 1:50,000, respectively. Since the maps of Use and Land Occupation and Riparian Forest were obtained by visual interpretation of the image of CBERS 2010 following the merger between the HRC and CCD images. From these mappings, and through multi-criteria analysis, map of susceptibility to erosion was made, which supported the environmental assessment of the studied area, indicating susceptible and unsuitable areas for the deployment of economic activities and urban sprawl. This study serves as a model can be replicated in other watersheds, assisting in the proper use planning and land use, aiming at the rational use of natural resources

Análise da suscetibilidade a corridas de massa aplicada a dutovias: estudo de caso na bacia do Ribeirão do Roque

This scientific research aimed at to analyse the susceptibility to debris flow of the watershed of Ribeirão do Roque (SP), focusing on the upstream areas of OSBRA pipeline. This is because, mass flow can cause damage to pipes, mainly due to conditioning hydro erosion of the land in the drainage crossings, including the undermining the banks of streams. Firstly, It was conducted a literature review, aiming to identify and understand the principal characteristics and conditions of debris flow. Secondly, the physical and anthropic factors and their respective weights of influence were selected and used to determine the mass flow susceptibility. It was selected the following physical factors: type and thickness of rocks, soil and unconsolidated materials; textural density; amplitude relief; relief slope; shaped valley; and shape of slopes. Such factors are present in the physiographic subdivision map of the study area. In addition, the anthropic attributes correspond to the classes contained in the land use map. Therefore, the physical and anthropic factors were integrated through the multi-criteria analysis in a GIS environment, generating a total susceptibility map of debris flow on the scale 1:50,000. The results showed that a significative part of the study area was classified as average susceptibility. However, it was identified areas with high susceptibility in the region in which the pipe cross the Ribeirão do Roque. Moreover, at which point the river presents a closed valley and a meander shape, without a fluvial plain that would be useful to attenuate the development of the process. Consequently, if a mass flow begins in any of these most susceptible regions located upstream of the pipe, the chances that the process develops by the river and causes the excavations of his bed are quite large. However, the pipelines cross these critical areas directly on the rock (diabase), which provides additional protection against possible ...

Vulnerabilidade ambiental dos recursos hídricos interceptados por rodovias na bacia do rio Uberaba

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Programação por metas e análise envoltória de dados na avaliação de unidades de produção global: uma aplicação em uma empresa do segmento químico

Considering the high competitivity in the market, the application of quantitative methods can assist in analyzing the efficiency of production facilities of areas of export and import processes of the chemical industry sector. In this sense, this work aims to apply the model GPDEA-BCC optimization in order to develop an analysis of the production units of this chemical industry. So, were chosen variables relevant to the process and elaborated a final comparison between the results obtained by the optimization tool and performance indexes provided by the company. These results indicated that some production units should be monitored more carefully because some of them had a low efficiency when analyzed with multi criteria