Use Case diagram for the gas pump system

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• Use Case diagram for the gas pump system

read validate credit card
select fuel options
customer
dispense fuel
debit credit card
credit card company
ltincludegt
print receipt
2
Context Diagram for an ATM system(used for
both structured and object-oriented techniques)
3

• A context diagram for a patient information
  system in a hospital.
• Includes image storage for x-rays and a patient
  admissions system.

image database
medical records system
hospital admissions system
patient information system
drug dispensing system
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Lacks details and need to be supplemented by DD
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Class DiagramPart of a Library class hierarchy
Name of object class
Class attributes
Objects operations
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Class DiagramObject aggregation
7
State DiagramMicrowave oven model