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This article will explain in detail how to create UML sequence diagrams. The editor thinks it is very practical, so I share it for you as a reference. I hope you can get something after reading this article.

Create UML sequence diagrams

This tutorial uses the class diagrams created in the UML Modeling: creating Class diagrams tutorial and the collaboration diagrams created in the UML Modeling: creating collaboration diagrams tutorials. Complete these tutorials before you begin the following steps.

This section contains the following steps:

◆ generates UML sequence diagrams

◆ perfects the generated graph

Generate UML sequence diagrams

1. Start IDE, if necessary.

two。 In the Project window, right-click the UMLTutorialProject > Model > CollaborationDiagram node, and then select create Diagram from selected elements from the pop-up menu.

The New wizard opens, which displays the create New Picture page. You can choose one of the two types of available interaction diagrams listed in the pop-up menu: collaboration diagrams and sequence diagrams. These diagrams focus on describing the interactions between objects.

3. In the Diagram Type list, select sequence Diagram.

4. In the figure name field, type SequenceDiagram.

5 leave the default settings in the Namespace field, and then click finish.

IDE will do the following:

◆ creates a SequenceDiagram node under the CollaborationDiagram node of the Project window.

◆ displays the new diagram in the diagram editor (which consists of lifeline elements and messages from the collaboration diagram).

◆ opens the modeling components panel and displays the icons used during the creation of the sequence diagram.

The resulting UML sequence diagram should be similar to the one below.

Perfect the generated UML sequence diagram

1. The objects in the transaction are drawn as dotted vertical lines with their names displayed at the top. Since you cannot predefine the order of lifeline elements when creating a sequence diagram, you need to reorder them at this point.

two。 Select the lifeline labeled User and move it to the left of the diagram.

Reorder the remaining lifeline elements so that they are evenly distributed in the diagram editor. Place the lifeline from left to right in the following order:

◆ User

◆ ATM

◆ Consortium

◆ Branch

At this point, the UML sequence diagram should be similar to the one below.

This is the end of the article on "how to create UML sequence diagrams". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it out for more people to see.

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