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OOD – Use Case Realizations UML's Sequence Diagram

OOD – Use Case Realizations UML's Sequence Diagram. Chapter 11 pp . 327-349. Where are we?. System Sequence Diagram (Ch5). shows interactions between an actor & the system. Use Case: “Create New Customer”. Lifelines Actor Object Message Return Message. Sequence Diagrams.

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OOD – Use Case Realizations UML's Sequence Diagram

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  1. OOD – Use Case Realizations UML's Sequence Diagram Chapter 11 pp. 327-349

  2. Where are we?

  3. System Sequence Diagram (Ch5) • shows interactions between an actor & the system Use Case: “Create New Customer” • Lifelines • Actor • Object • Message • Return Message

  4. Sequence Diagrams • (def) model of the interactions between objects within a single use case scenario (i.e. an instance of a use case) • Interactions (i.e. messages) Lifeline Object Activation bar : Object creation : Message Return

  5. 125 : A : B doThis() • A method is being invoked • From the originating/sending object (A) • To the destination object (B) • B is responsible for implementing the method doThis() • * [true/false]returnValue:= messageName(parameter)

  6. Use Case: “Cancel an Order” Sequence Diagram (Note: Domain Layer only) Design Class Diagram Add methods to the Design Class Diagram

  7. Use Case: “Place a Phone Order”

  8. Sequence Diagram(with the Actor & 3 Layers)

  9. 3 Layer Design Types of Classes View Layer Domain Layer Data Access Layer Database CustomerDA Customer Table Order Table OrderDA OrderItem Table OrderItemDA …. ….

  10. Use Case: “Create New Customer” Sequence Diagram Here is a: 3 Layer Design Note: We will only be modeling the Actor & the Domain layer. Actor View Domain Data Access

  11. Exercise

  12. Sequence Diagram Use Case: “Place a Phone Order” Note: Domain Layer only Design Class Diagram Add methods to the Design Class Diagram

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