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Draw me a context-level Data Flow Diagram  To draw a context-level Data Flow Diagram (DFD) for the Ice Cream Shop System by hand or using diagramming software, follow these steps

Draw me a context-level Data Flow Diagram  To draw a context-level Data Flow Diagram (DFD) for the Ice Cream Shop System by hand or using diagramming software, follow these steps

Principles of Information Systems (MindTap Course List)
Principles of Information Systems (MindTap Course List)
13th Edition
ISBN:9781305971776
Author:Ralph Stair, George Reynolds
Publisher:Ralph Stair, George Reynolds
Chapter12: System Acquisition And Development
Section: Chapter Questions
Problem 3PSE: A new sales ordering system needs a relational database that contains a customer table, a product...
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Draw me a context-level Data Flow Diagram 

To draw a context-level Data Flow Diagram (DFD) for the Ice Cream Shop System by hand or using diagramming software, follow these steps:

  1. Central Process:

    • In the center of your page, draw a large rounded rectangle.
    • Label it "Ice Cream Shop System" to represent the entire system.

  2. External Entities:

    • Draw three rectangles on your page for the external entities:
      • Place one rectangle at the top and label it "Customer" to represent the source of orders and feedback.
      • Place another rectangle at the bottom and label it "Supplier" to represent the entities that supply inventory to the shop.
      • Place the third rectangle to the left side of the central process and label it "Inventory System" to represent the system that tracks inventory levels and provides stock reports.

  3. Data Flows:

    • Draw an arrow from the "Customer" rectangle to the central process. Label this arrow "Orders and Feedback" to show the data flow from customers to the system.
    • Draw an arrow from the central process to the "Supplier" rectangle. Label this arrow "Order Requests" to represent the data flow from the system to suppliers.
    • Draw an arrow from the "Inventory System" rectangle to the central process. Label this arrow "Stock Reports" to depict the flow of inventory information to the system.
    • Draw another arrow from the central process back to the "Inventory System". Label this "Inventory Requests" to show the system's request for inventory data.

  4. Final Touches:

    • Make sure all arrows point in the direction of data flow.
    • Double-check that all entities, processes, and data flows are correctly labeled.
    • Ensure that the diagram is neat and readable.
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