Logistics is the process of planning, implementing, and controlling the efficient flow of goods, services and information from the point of origin to the point of consumption. It involves the integration of transportation, inventory, warehousing, material handling, and packaging. The goal of logistics management is to meet customer requirements for delivery of products and services in the most cost-effective manner possible. Key functions include purchasing, inventory management, warehousing, transportation and customer service. An effective logistics system provides the right products to customers in the right quantities, at the right place and time, while minimizing costs and resources.