Néocles Alves Pereira

Modelagem de processos de negócios na implementação de ERPs nacionais em PMEs

This article presents evidences found in a research whose objective was to investigate the contribution of using business processes modeling (BPM) in the implementation of Enterprise Resource Planning (ERP) in small and middle companies (SMEs). The use of the BPM and assessment of its influence for the integration of the internal business processes of their customers, was also observed in the main national ERP system suppliers. To carry out this research, information was obtained by means of specific questionnaires answered by the national ERP system suppliers and their customers. This research allowed to obtain actual data about the main implementation characteristics within the SMEs, showing how the BPM effectively contributes for the implementation and better integration of the internal business processes.

Binary integer programming formulations for scheduling in market-driven foundries

This paper describes the development and solution of binary integer formulations for production scheduling problems in market-driven foundries. This industrial sector is comprised of small and mid-sized companies with little or no automation, working with diversified production, involving several different metal alloy specifications in small tailor-made product lots. The characteristics and constraints involved in a typical production environment at these industries challenge the formulation of mathematical programming models that can be computationally solved when considering real applications. However, despite the interest on the part of these industries in counting on effective methods for production scheduling, there are few studies available on the subject. The computational tests prove the robustness and feasibility of proposed models in situations analogous to those found in production scheduling at the analyzed industrial sector.

Modelo quantitativo para avaliação e melhoria de desempenho do processo de S&OP baseado no diagnóstico e redução de falhas

The S&OP process, like any business process of strategic or tactical level, requires having its performance measured so that, through the monitoring of these measurements, improvement actions for the factors affecting their performance can be created. The models for performance analysis in the literature failed to identify the most relevant causes of inefficiency to the process and do provide a way of measuring the process performance. Therefore, this paper presents a proposal for a quantitative model for the analysis and performance improvement of the S&OP process based on the diagnosis and reduction of its most important inefficiencies.

Análise comparativa entre a implementação e atualização do sistema ERP R/3 da SAP considerando os fatores críticos de sucesso descritos na literatura: um estudo de caso em uma empresa do segmento de bebidas

Many companies that have adopted the ERP R/3 system by SAP and need to upgrade this technology have faced substantial human resource and structural upgrading requirements. The long time of the project, the amount of financial investments, and internal workforce required for the job are usually similar to those of the original ERP implementation. The purpose of this paper is to analyze an upgrading of the versions of the ERP R/3 system in a beverage company. Firstly, a literature review was conducted to present an account of theoretical concepts of ERP, and a questionnaire was then created for data collection. This paper shows the results of a research that investigates the behavior of seven critical success factors for the implementation of ERP systems described in the literature during the upgrading of a SAP R/3 system, verifying if the demands are justified.

Modelo de dinâmica de sistemas para o processo de S&OP ampliado

Despite the SO and the most sophisticated ones are based on operational research techniques inserted in Advanced Planning Systems (APS). The literature review on theory and computational techniques used to aid the S&OP process identified a lack of studies related to the use of System Dynamics. Additionally, the review indicates the need for economic and financial analysis integration studies during the preparation of aggregates plans and the use of probabilistic variables in the process enabling the statistical analysis in order to provide more reliable plans. Another relevant issue observed is that managers involved in the S&OP process do not always have a global vision of all variables and constraints involved in the process, therefore, the techniques and tools used to implement the S&OP process do not provide a holistic view of the activities and variables involved. Hence, this paper proposes a System Dynamics Model simulation that provides a holistic vision for the S&OP process, allowing the integration of finance processes and the use of probabilistic variables. The evaluation of the simulations results performed with the model, supported by a design of experiments (DoE), shows that the generated plans are compatible if compared to business procedure, with the advantage of dealing simultaneously with economic and financial analysis and still allows the generation of numerous scenarios of S&OP plans.

Exemplo de aplicação do método de Pesquisa-ação para a solução de um problema de sistema de informação em uma empresa produtora de cana-de-açúcar

Sugarcane industries usually deal with several operation problems mainly due to seasonality. On the other hand, they also face many administrative difficulties; particularly when it comes to issues related to and manpower employment and control which require a broad range of skills and abilities, from a simple manual labor to jobs skilled trade jobs. These factors associated to the fact that sugarcane is a permanent crop can lead to cost accounting problems. The purpose of this study is to use the action research methodology as well as the methods and techniques of Business Processes Modeling to identify manpower cost drivers and to support the development of a distribution and allocation automation system for cost accounting. The method of action research used was based on that proposed by McKay and Marshall, which proved efficient and effective in diagnosing organizational problems and providing solutions.

ESTUDO MULTICASOS DOS IMPACTOS DO BUSINESS INTELLIGENCE NO PROCESSO DECISÓRIO E NA FORMULAÇÃO DE ESTRATÉGIAS

Cada vez mais as organizacoes necessitam de informacoes rapidas e confiaveis para agilizar o processo decisorio e, assim, acompanhar o ambiente dinâmico em que estao inseridas. Dentre as ferramentas que auxiliam a construcao dos Business Intelligence esta o OLAP (On-Line Analytical Processing), que facilita a busca por informacoes. Permite a procura de dados relevantes com maior rapidez e visualizacao em perspectivas multidimensionais. O objetivo deste trabalho e identificar se a adocao da ferramenta de business intelligence OLAP pode ser considerada como uma alternativa de melhoria do processo decisorio e de auxilio na formulacao de estrategias. Quanto a metodologia, a presente pesquisa caracteriza-se por ser de abordagem qualitativa. O procedimento utilizado foi o estudo de caso, mais especificamente um estudo multicasos. Foram entrevistadas oito empresas que utilizam o OLAP. Dentre os principais resultados, observou-se que esta ferramenta de apoio a decisao provoca melhorias no processo decisorio e auxilia na elaboracao de estrategias corporativas, de unidades de negocio e funcionais.

Sistema de apoio à decisão para programação da produção em fundições de mercado

Este trabalho tem por objetivo propor um sistema de apoio a decisao (SAD) para elaboracao da programacao da producao em fundicoes que trabalham com produtos personalizados sob encomenda, tambem conhecidas como fundicoes de mercado. Para isto, o ambiente produtivo das fundicoes de mercado e estruturado por meio do sistema de controle da producao conhecido como PBC, sendo propostas, tambem, tres modelagens decisorias viaveis para o processo de programar a producao: um modelo de programacao inteira binaria, um modelo heuristico classico de busca em arvore, conhecido como beam search e um modelo meta-heuristico baseado em algoritmos geneticos. Este trabalho apresenta ainda os resultados experimentais obtidos com a aplicacao dos modelos decisorios e a analise da adequacao do SAD proposto em fundicoes de mercado representativas do interior do Estado de Sao Paulo.