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      Análise comparativa entre modelos de estoque Translated title: Inventory models comparative analysis

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          Abstract

          Este trabalho é um estudo do problema de escolha entre modelos de estoque para a gestão de itens independentes em local único. Quatro modelos de estoque são considerados, sendo três deles reativos, que não utilizam previsão de demanda para a tomada de decisões, e um ativo, que decide com base em previsões. A medida de desempenho considerada é o custo de operação médio por período, que é obtida através de simulação da utilização dos modelos com base num histórico de vendas. O trabalho analisa o efeito da alteração de previsibilidade e da consideração de quantidades mínimas de compra no modelo ativo no desempenho relativo dos modelos analisados. A análise utiliza um modelo de busca acoplado a um simulador. O trabalho apresenta subsídios para a escolha e parametrização de modelos de estoque em empresas.

          Translated abstract

          This paper is an approach of the inventory models selection problem in single echelon system management with independent items. Four inventory models are considered, three reactive, which don't use demand forecasting for decision making, and one active model, that decides based on forecasting. Average operation cost per period is the performance measurement variable considered, calculated by using simulation of the models applied on sales temporal series. The paper analyses the effects, in the relative models performance, of the demand forecast accuracy and the use of minimum acquisition quantity in the active model. The analysis uses a search model jointly a simulator to optimize the parameters. The results present useful information for models selection and parameters determination in organizations environment.

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          Most cited references16

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          Materials Requirements Planning

          J Orlicky (1975)
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            Inventory Systems

            E. Naddor (1966)
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              Forecasting Systems for Production and Inventory Control

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Journal
                prod
                Production
                Prod.
                Associação Brasileira de Engenharia de Produção (São Paulo )
                1980-5411
                2008
                : 18
                : 1
                : 89-98
                Affiliations
                [1 ] Universidade de São Paulo Brazil
                Article
                S0103-65132008000100007
                10.1590/S0103-65132008000100007
                06af101b-4d99-4b7e-aeb2-71a29a936e0c

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0103-6513&lng=en
                Categories
                ENGINEERING, MANUFACTURING

                General engineering
                Iinventory models,simulation,search,Modelos de estoques,simulação,busca
                General engineering
                Iinventory models, simulation, search, Modelos de estoques, simulação, busca

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