There are four factors that take part in Steritex Medical's flow of operations. Firstly, Steritex Medical's system in terms of client orders and deliveries, represented by the color light green, requires coordination between multiple departments. What happens is that, as they receive orders from their clients, two kinds of processes occur before the completion and delivery of their products. The first process takes place when there are no backorders or when there are available stocks in the company. Basically, once an order is received, the purchase order or purchase requisition form will be directed to the company's sales coordinator. The sales coordinator will be the one responsible for checking if the delivery request or sales invoice received will match their stocks in the inventory. If there are available stocks and if the information on both purchase order or purchase requisition form matches the delivery request or sales invoice, the order will be ready to be logged in the logistics department. The logistics department will then be the one to handle the delivery of the orders once the sales coordinator confirms the order. On the other hand, the second process takes place when there are no available stocks; thus, the company needs to coordinate with its supplier. So, when an order is received, and there are no available stocks in the inventory, a copy of a signed purchase order or purchase requisition form will be placed on backorder, represented by the color green. Then, the purchasing department will coordinate with their supplier to see available stocks. During this process, represented by the color yellow, the supplier will be receiving a purchase order from the company's purchaser. The supplier will then compare the purchase order and the delivery request to see if they are the same. During this process, the price, the quantity, and the availability of the stocks, along with its brand, lot number, and expiration will be checked. After this process, the approval of the stocks requested will be waiting for approval. If approved, the stocks will then be received, and the supplier will then deliver the backorders. At the same time that the backorders will be delivered back to the company, the supplier will input the orders to their system and scan the necessary documents such as the sales invoice and delivery request. If the stocks are not approved, the order will be cancelled. If the backorders delivered to the company are not complete, an additional lead time for the remaining backorders will be implemented until completion. Once the backorders are complete, stocks will be prepared for delivery, wherein the sales coordinator will match the delivery request or sales invoice with the actual stocks of the company and transfer it to the logistics department. When a delivery request or sales invoice needs adjustments, the sales coordinator will edit the said request. If no adjustments were reported, the orders would be ready to be transferred to the logistics department and delivered under the sales coordinator's approval or confirmation. In certain cases where the clients will return their orders, represented by the color blue, there are two processes that take place. For order returns that have wrong brands, near to its expiration date, wrong item, wrong schedule for delivery, or over-delivery, it will be reported to the sales coordinator who will be responsible for checking the sales invoice or delivery request and go through the client delivery (color light green) process all over again. On the other hand, for order returns that are due to consignments, cancellations, and closures, these orders will be displayed back to the warehouse either for pull-out or for stockage, in which needed to be confirmed by the purchaser and will be delivered back to the suppliers.