Manichean discussion between manage high inventory volumes and models where these are fully removed, is interesting in a theoretical way. However, in practice, holding too much inventory generates high costs, but a missing could generate important risks on the operation, concerning service quality, and in the case of hospitals, these could even cause the patient’s death. On the other hand, a hospital manages thousands of items with very different characteristics, since is possible to find low cost products with high rotation, to high cost products with low rotation. Keeping in mind the different behaviour of products, is hazardous and unsuitable to manage unique inventory models. For this reason, the Hospital Universitario Mayor MEDERI, side by side with the Logistics and Production program of the Universidad del Rosario, improve studies in the way to create instruments that allow to do a better inventory management, looking for a service quality improvement and a cost reduction linked with control, storage and dispensation of products and supplies simultaneously in different services, keeping in mind the distinctive features of each product and its importance in the process.