(INSTITUTO DE TECNOLOGIA, 2013) LIMA, Orlem Pinheiro de; MADURO, Márcia Ribeiro; LEITE, Jandecy Cabral; SILVA, Carlos Américo de Souza; Prof. Dr. Carlos Tavares da Costa Júnior
This article analyzes the importance of the functions of production planning and control (PPC) in the manufacturing sector. Based on a literature review of 14 national and international authors, the study identifies differences in the approaches to PPC functions, but emphasizes a general agreement on its relevance for coordinating planning and operational execution. It concludes that, regardless of the industry type, PPC plays a strategic role in identifying deviations, proposing corrections, and ensuring process efficiency.
(INSTITUTO DE TECNOLOGIA, 2015) LIMA, Orlem Pinheiro de; SANTIAGO, Sandro Breval; RODRÍGUEZ, Carlos Manuel Taboada; Jandecy Cabral Leite
The study presents a demand forecasting analysis for a plastic injection industry in the Manaus Industrial Pole (PIM), using the Holt-Winters exponential smoothing method. Monthly sales data over 36 months (2010-2012) were analyzed, identifying additive seasonality patterns. The model was evaluated using Mean Absolute Percentage Error (MAPE) and Theil's U coefficient, demonstrating forecasting efficacy and emphasizing the importance of error analysis for continuous improvements.
