System Analysis

Create Purchase Order

This is an activity diagram on creating purchase order and it involves the inventory database and the inventory management. Here a nightly process will run and check all inventory levels. The program will identify any item which has reached it's minimum level and flags it for vendor reorder. The program will create a purchase order and send it to the inventory manager for approval. Once approved, the purchase order is sent to the Vendor and a copy is saved to the database

Online Transaction

Here, the customer will insert product or the item. The website will then extract the product data that was selected and is sent to the database to look up the item. From here, the product is displayed at the website where the customer will select the amount of items to buy. The Website will extract sale data that is, calculate the total of items, quantities etc. After that the item is placed in a shopping cart which will then be displayed at the website.

Order Processing

The order processor will receive the order. If order is not accepted, then the order will be closed. But if it's accepted, the order processor will fill in the order and the Accounting clerk will send the invoice. After this..when the order is shipped and the payment is made by the Accounting clerk ..the order will be closed by the order processor.

Inventory Check

The customer will select the item or items to be purchased. The system will then check the inventory to see if it's in stock or not. If the items are not in stock , then the system will have to start a new order. If the items are in stock, then the final order will be selected and from here the order is placed by the customer.