Data Journey Mapping Worksheet
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Data Journey Mapping Worksheet
Meet the system
Hudson scans a box of cereal at the checkout. The scanner reads the barcode and sends its number to the checkout computer. The computer looks up the product name and price in the supermarket database. The screen displays the item and price. When the sale is confirmed, the computer sends a stock update through the supermarket network to a server, which stores records for many checkouts. The network carries digital messages between devices; the internet is not needed for this in-store system.
BARCODE SCANNER Collects the barcode number from the product.
CHECKOUT COMPUTER Processes the number and requests product details.
SCREEN Displays the product name and price to the shopper.
SUPERMARKET SERVER Stores records and receives stock updates from checkouts.
Follow the information
Answer each question using the scenario and system cards.
- Screen
- Barcode scanner
- Supermarket server
- Checkout computer
Map the data journey
Use the diagram below to trace the barcode data and stock update. Add arrows and label them with sequencing words such as first, next, then and finally. The screen and server both receive information from the checkout computer at different points in the process.
BARCODE SCANNER
CHECKOUT COMPUTER
SCREEN
SUPERMARKET SERVER
- The scanner physically moves cereal along the belt
- The checkout computer uses the barcode number to find product details
- The server prints a price tag
- The shopper carries the data to the screen
3 printable pages
Page 1
Page 2
Page 3
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