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Planejamento da produção e da logística para empresas produtoras de sementes de milho
(Universidade Federal de São Carlos, 2006-05-23) Junqueira, Rogério de Ávila Ribeiro; Morabito Neto, Reinaldo
The production of corn seeds involves a complex agro-industrial production chain whose main agents must offer products of high quality and low price to stay competitive. Efficient tools to coordinate this chain are thus essential to fulfill these conditions. This work proposes a linear programming model for the strategic planning of production, storing and transportation, designed to minimize production, transportation and tax costs. The model is a function of crop planning, capacity and client demand restrictions. Although relevant to the product s final cost, taxes are not traditionally considered by the planning methods currently used by the seed industry. The raw material is generally sent to the industrial unit closest to the farm; proximity to the end consumer is of secondary importance. The main productive processes and features of the seed industry described here are based on literature and visits to plants that produce corn seeds. The mathematical model detailed in this work is implemented using the GAMS programming language and the resulting system of equations solved with CPLEX. The model was validated by using different scenarios with real-world data collected during the visits to the plants; the results were consistent with those expected. Next, the results given by the model of a case study with data for an entire season were compared against those obtained by one of the companies employing the traditional method of shortest distance between farm and industrial unit. The proposed model showed a substantial decrease in total cost when compared to the traditional method. This study also confirmed the importance of integrating taxes with production and transportation planning at the logistics level.
Investigação empírica sobre os efeitos da adoção do modelo do Prêmio Nacional da Qualidade na medição de desempenho
(Universidade Federal de São Carlos, 2006-05-23) Oliveira, Gerusa Tinasi de; Martins, Roberto Antonio; https://lattes.cnpq.br/3518820028045730
The changing basis of competition has emphasized the role of performance measurement as a strategic and competitive requirement for many organizations. In such context, companies from different countries have applied quality management methods as a manner to achieve organizational development. In Brazil, the National Quality Foundation (NQF) manages the Brazilian National Quality Award (BNQA), an award aimed at recognizing management excellence in organizations. In the same way, performance measurement has evolved in order to assess organizational performance, support strategy formulation and guide decision making. For performance measurement to contribute to competitiveness improvement, it is necessary the usage and management of performance information. In this sense, the objective of this study is to empirically investigate how companies which have adopted the Brazilian National Quality Award model for total quality management have altered their performance measurement systems. The research is based on the Lakatos investigation program, in an attempt to explain a perspective on paradigmatic change, like the changes in performance measurement emanating from the adoption of the BNQA management model. Hence, the empirical research here presented was designed and carried out by means of a combination of methods: documental research and multiple case studies. The main findings of the study, after the analysis and interpretation of the information gathered by both research methods, seem to indicate that the adoption of the Brazilian National Quality Award management model may be considered a catalyst for the changes in managerial practices and performance measurement of the studied companies.