Inventory is the physical stoke of goods maintained in an organization for its smooth sunning. In accounting language it may mean stock of finished goods only. In a manufacturing concern, it may include raw material, work-in-progress and stores etc. in the form of materials or supplies to be consumed in the production process or in the rendering of services. Inventory management is primarily about specifying the shape and percentage of stocked goods. It is required at different locations within a facility or within many locations of a supply network to precede the regular and planned course of production and stock of materials.