How to Make a Sequence Diagram in UML | Gliffy UML Diagram Tutorials

Learn how to make a sequence diagram in UML with this basic sequence diagram tutorial. We’ll walk you through the basic example of making a phone call to a friend to cover the main points of sequence diagramming. In this tutorial, you’ll learn how to:

🔹 Find shapes for UML diagramming with Gliffy
🔹 Add objects and lifelines to your diagram
🔹 Use basic message notations
🔹 Use an alternative frame to show two potential outcomes
🔹 Add activation boxes that show when each object is active

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