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HomeSoftware TutorialOffice SoftwarePowerDesigner User Guide: Draw use case diagrams, sequence diagrams, collaboration diagrams, state diagrams and activity diagrams

How to draw use case diagram sequence diagram collaboration diagram state diagram activity diagram in PowerDesigner

Create a use case diagram, open PD, and do the following:

To solve this puzzle we need to follow the steps below. First, open the software and select the "File" option, and find the "New Model" option in the drop-down menu. Next, select "Categories" and then "Business." In the business model, select "Use Case Definition". Now, you will see an interface with a small man symbol and a use case symbol on the panel. By dragging and connecting these symbols, you can manipulate the relationships between use cases. If you want to adjust the line style, click "Show Preferences" in the toolbar and select "Format". In the formatting options, find "Use Case Association" and select the last S-shaped line style so you can turn the curve into a straight line.

We can create models of activities, components and sequences by using UML activity diagrams, component diagrams and sequence diagrams. In the category, select the application and draw using the Model panel. Use UML activity diagrams to describe the activity flow of the system, use UML component diagrams to represent the component structure of the system, and use UML sequence diagrams to show the interaction sequence between various objects in the system. Through these graphics, we can understand the structure and behavior of the system more clearly.

In order to create a database model, you first need to make an ER diagram. We can follow these steps: 1. Create two entities: Categories and Information. Classification entities contain attributes such as name and description, while information entities can contain relevant details. 2. In the ER diagram, use appropriate symbols and arrows to represent the relationships between entities. For example, you can use a solid arrow to represent the relationship between a Classification entity and an Information entity. 3. Click on the first legend to create Conceptual Data. This will help us convert entities and relationships into a visual representation of the database model. Through the above steps, we can create a simple but effective database model to better organize and manage classification and information data

Note: To understand the meaning of CDM/PDM/OOM/BPM respectively, they can be converted into each other.

CDM: Conceptual Data Model

PDM: Physical Data Model

OOM: Object-oriented model

BPM: Enterprise Process Model

If you want to do software development, please use OOM more.

Of course, CDM/PDM can also be used, and different models can be generated through the menu "Tools".

How to draw use case diagram in visio2007

Steps to draw UML use case diagram in Visio:

1. On the File menu, point to New, then Software, and then click UML Model Diagram.

2. In the tree view, right-click the package or subsystem to contain the use case diagram, point to "New", and then click "Use Case Diagram".

A blank page will appear, and the "UML Use Case" template will also be displayed at the top. The workspace displays "Use Case" as a watermark. The tree view will add an icon representing the chart.

Note If you do not see the tree view, point to View on the UML menu, and then click Model Explorer.

3. Drag the "System Boundary" shape onto the drawing page.

Use system boundary shape

Indicate system boundaries in use case diagrams

4. When drawing a UML use case diagram in Visio, drag the "Use Case" shape from the "Use Case" mold and place it within the system boundary, and then drag the "Participant" shape outside the system boundary.

Using use case shapes

Use participant shape

5. Use the "Communication" shape to indicate the relationship between use cases and actors.

Use communication shapes

Point out the relationship between actors and use cases

6. When drawing UML use case diagrams in Visio, you need to point out the relationship between use cases through the "use" and "extend" shapes.

Point out the usage relationship between the two use cases and point out the extension relationship between the two use cases

7. Double-click any shape (except the "System Boundary" shape) to open its "UML Properties" dialog box, where you can add names, properties, operations, and other properties.

8. Save the chart.

The above is the detailed content of PowerDesigner User Guide: Draw use case diagrams, sequence diagrams, collaboration diagrams, state diagrams and activity diagrams. For more information, please follow other related articles on the PHP Chinese website!

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