<span><em>PT Kusumahadi Santosa is a company engaged in manufacturing, the textile industry. One of the major </em><span><em>processes that occurs within the company is printing process where types of chemicals that are used are </em><span><em>more than 250 different types. However, in conducting the management of chemical inventories, the </em><span><em>company still use the manual process which has not been computerized. As a result, there are some </em><span><em>problem occurs, such as miscalculation of 5%-30% in the process of recording the amount of chemicals, </em><span><em>process of discharging chemicals not recorded, control and planning of chemical inventories is not </em><span><em>optimum that will indirectly result in losses company. Therefore, it is necessary to design information </em><span><em>system management inventory for controlling chemical inventories. Information system management is </em><span><em>designed in the form of web applications and integrated with continuous review inventory model. In </em><span><em>addition, the system is equipped with functional and non-functional requirements to fix of the previous </em><span><em>system. By adopting the proposed information systems management, the process management of </em><span><em>chemicals can be managed more effectively and efficiently. The proposed information system which </em><span><em>integrated the system with continuous review inventory model can be adopted by the company for </em><span><em>managing the inventories and reducing the inventory cost.</em></span></span></span></span></span></span></span></span></span></span></span></span></span><br /></span>
Three-Echelon Inventory Model with Permissible Delay in Payments under Controllable Lead Time and Backorder Consideration