Question

Kitchen Gadgets sells a line of high-quality kitchen utensils and gadgets. When customers place orders on the company’s Web site or through electronic data interchange (EDI), the system checks to see if the items are in stock, issues a status message to the customer, if they are in stock the customer will pay, the system will generate a shipping order to the warehouse, which fills the order. When the order is shipped, the customer is billed. The system also produces inventory reports to the accounting department. Complete the following tasks:

1. Draw a context diagram for the order system.

2. Draw a diagram 0 DFD for the order system.

Answer 1

Context diagram: Context diagram is the top-level view of IS, which shows us the system boundaries, the external entities that interacts with the system and the major information that flows between the entities and the system. The context diagram for the order system is given:

DFD: DFD stands for Data Flow Diagrams and can be referred to as a picture of the movement of data between external entities and the processes and data stores within a system. A level-0 DFD shows us the major processes, data stores and data flows of the system at a high level of abstraction. Diagram 0 DFD for the order system is given: