Use Case Diagram

Actors and the use cases they participate in.

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flowchart LR
    subgraph System ["Online Banking System"]
      UC1(("Transfer funds"))
      UC2(("Pay bill"))
      UC3(("View statement"))
      UC4(("Manage card"))
    end
    Customer((Customer)) --- UC1
    Customer --- UC2
    Customer --- UC3
    Customer --- UC4
    Bank((Bank Officer)) --- UC3
    Bank --- UC4