The importance of implementing an adequate demand and inventory management process improves coordination in supply chain models. The purpose of this research is to analyze and propose the application of a forecasting technique and the implementation of a continuous inventory review policy by designing a simulation for a company in the veterinary commercial sector. Currently, companies without this coordination obtains an inadequate inventory level generating losses in profits and a low demand level of service.  This study presents as a result an optimization model based on the ARIMA technique and an inventory model simulated in Arena software.

Keywords
Inventory management, Time series, Optimization, Simulation.