5 Questions
What is the primary purpose of a sequence diagram?
To depict the interactions between objects over time
What type of arrow is used to represent a synchronous call in a sequence diagram?
Solid arrow with an open arrowhead
In a sequence diagram, what does a lifeline represent?
An object's existence over time
What is the purpose of an activation box in a sequence diagram?
To highlight the duration of an operation
In a sequence diagram, what does a self-call represent?
An object calling its own method
Study Notes
Sequence Diagrams
- The primary purpose of a sequence diagram is to show the interactions between objects over time.
Elements of a Sequence Diagram
- A filled arrowhead is used to represent a synchronous call in a sequence diagram.
- A lifeline in a sequence diagram represents an object's existence over time, including its creation, execution, and destruction.
- An activation box in a sequence diagram represents the duration of an object's activation, indicating when an object is performing an action or computation.
- A self-call in a sequence diagram represents a method calling itself, often used to show recursive behavior.
Test your knowledge of sequence diagrams, a type of interaction diagram in UML. Learn about the different components and their purposes in sequence diagrams.
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