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Data Flow 2
- 8. IF it is necessary to produce a level 2 or level 3 diagram, the same steps would be followed as used when constructing the Level 1 diagram Constructing a Level 2/3 diagram
- 10. Level 0 Context diagram CUSTOMER
- 12. CUSTOMER Level 0 Context diagram KITCHEN RESTAURANT MANAGER
- 14. CUSTOMER KITCHEN RESTAURANT MANAGER Level 0 Context diagram Food ordering system 0
- 16. Food ordering system 0 CUSTOMER KITCHEN RESTAURANT MANAGER Level 0 Context diagram Food Order Management Reports Customer Order Receipt
- 18. Food ordering system 0 CUSTOMER KITCHEN RESTAURANT MANAGER Food Order Management Reports Customer Order Receipt Level 0 Context diagram Does this show enough detail?
- 21. 1.0 Receive and transform Customer Food Order
- 23. 1.0 Receive and transform Customer Food Order 2.0 Update Inventory file 3.0 Update Goods Sold file
- 25. 1.0 Receive and transform Customer Food Order 2.0 Update Inventory file 3.0 Update Goods Sold file 4.0 Produce Management Reports
- 27. 1.0 Receive and transform Customer Food Order 2.0 Update Inventory file 3.0 Update Goods Sold file 4.0 Produce Management Reports KITCHEN Food Order CUSTOMER Customer Order Receipt RESTAURANT MANAGER Management Reports
- 29. RESTAURANT MANAGER Food Order Customer Order Receipt Management Reports 1.0 Receive and transform Customer Food Order 2.0 Update Inventory file 3.0 Update Goods Sold file 4.0 Produce Management Reports CUSTOMER KITCHEN Goods Sold File D1 D2 Inventory File
- 31. RESTAURANT MANAGER Food Order Customer Order Receipt Management Reports 1.0 Receive and transform Customer Food Order 2.0 Update Inventory file 3.0 Update Goods Sold file 4.0 Produce Management Reports CUSTOMER KITCHEN Goods Sold File D1 D2 Inventory File Goods Sold Inventory Data Goods Sold Data Inventory Data Daily Goods Sold Amount Daily Inventory Depletion Amounts
- 32. In this example, having constructed our Level 1 diagram it is decided there is no need to further breakdown the data flow processes within this organisation. Our data flow diagram is therefore complete.
- 33. Do’s and Don’ts when constructing a Data Flow Diagram
- 34. Do’s and Don’ts when constructing a Data Flow Diagram
- 35. Do’s and Don’ts when constructing a Data Flow Diagram