Sequence Diagram Example: Make a Phone Call


Sequence diagrams are a type of interaction diagram which focus on the interaction of a scenario of a given task as observed over time. This is a simple sequence diagram that shows how a phone call can be made.

This simple sequence diagram example and template can be edited with Visual Paradigm Online, an online diagramming software. Click Use this Template to edit this sequence diagram template, or click Create Blank to create a new one.

What is Sequence Diagram?

A sequence diagram captures the behavior of a single scenario by showing a number of example objects and the messages that are passed between these objects within a use case. One of the nice things about a sequence diagram is that you almost don't have to explain the notation in order to communicate a scenario it represented even for business stakeholders.

Purpose of Sequence Diagram

  • A sequence diagram illustrates how objects interacts with each other
  • It emphasizes time ordering of messages
  • Sequence diagrams are often be used to model simple sequential flow, branching, iteration, recursion and concurrency

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