The ordering system of a company works as follows;When customers place orders on the company’s Web site, the system checks if the items are in stock, issues a status message to the customer, and generates a shipping order to the warehouse that fills the order. When the order is shipped, the customer is billed. The system also produces various reports to the management.(i) Draw the Context Diagram for the above order system.(ii) Identify two (2) possible sub-processes in the Level 0 DFD of the above system.
Question
The ordering system of a company works as follows;When customers place orders on the company’s Web site, the system checks if the items are in stock, issues a status message to the customer, and generates a shipping order to the warehouse that fills the order. When the order is shipped, the customer is billed. The system also produces various reports to the management.(i) Draw the Context Diagram for the above order system.(ii) Identify two (2) possible sub-processes in the Level 0 DFD of the above system.
Solution 1
(i) As a text-based AI, I'm unable to draw diagrams. However, I can describe how the context diagram for the order system would look like:
- The main process in the center would be the "Ordering System".
- There would be four external entities: "Customer", "Website", "Warehouse", and "Management".
- "Customer" would have a bi-directional flow to the "Ordering System", representing the customer placing the order and receiving the status message.
- "Website" would have a one-way flow to the "Ordering System", representing the system checking if items are in stock.
- "Warehouse" would have a one-way flow from the "Ordering System", representing the shipping order generated by the system.
- "Management" would have a one-way flow from the "Ordering System", representing the reports produced by the system.
(ii) Two possible sub-processes in the Level 0 DFD of the above system could be:
- "Check Stock": This sub-process would involve the system checking the availability of the ordered items in the stock.
- "Generate Shipping Order": This sub-process would involve the system generating a shipping order to the warehouse to fill the order.
Solution 2
(i) As a text-based AI, I'm unable to draw diagrams. However, I can describe how the context diagram for the order system would look like:
- The main process in the center would be the "Ordering System".
- There would be four external entities: "Customer", "Website", "Warehouse", and "Management".
- "Customer" would have two interactions with the system: "Place Order" going into the system and "Receive Status Message" coming out from the system.
- "Website" would send "Check Stock" to the system.
- "Warehouse" would receive "Shipping Order" from the system.
- "Management" would receive "Reports" from the system.
(ii) Two possible sub-processes in the Level 0 DFD of the above system could be:
- "Check Stock and Update Status": This process would involve checking the availability of the ordered items and updating the status message for the customer accordingly.
- "Generate Shipping and Billing Information": This process would involve creating a shipping order for the warehouse and generating the billing information once the order is shipped.
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