> ## Documentation Index > Fetch the complete documentation index at: https://docs.davinci-app.com/llms.txt > Use this file to discover all available pages before exploring further. # Sequence View ## Description The Sequence View displays sequence diagrams for Action objects, showing interactions and message exchanges between different entities over time. This view uses a two-pane layout with code editor on the left and generated diagram on the right. Sequence diagrams visualize how objects interact in a time-ordered sequence, with lifelines representing participants and arrows showing messages or calls between them. The view automatically generates these diagrams from your sequence definition code. ## View Controls ### Code Editor The left pane contains a code editor where you define the sequence interactions using structured syntax. The diagram updates automatically as you edit the code. ### Wrap Toggle line wrapping in the code editor for better readability of long lines. ### Depth Controls how deep into nested interactions and sub-sequences the diagram displays. ### Orientation Choose between horizontal and vertical layout for the sequence diagram. ### Show Documentation Toggle to display or hide documentation text for interactions within the diagram. ### Refresh Regenerates the sequence diagram from the current code definition. ## Diagram Elements Sequence diagrams include: * **Lifelines**: Vertical dashed lines representing entities or objects participating in the sequence * **Messages**: Horizontal arrows between lifelines showing communication or calls * **Activation Boxes**: Rectangles on lifelines indicating when an entity is actively processing * **Return Messages**: Dashed arrows showing return values or responses * **Time Flow**: Implicit top-to-bottom ordering represents progression of time ## Interaction **Pan and Zoom**: In the diagram pane, click and drag to pan. Use mouse wheel to zoom. **Edit Code**: Modify the sequence definition in the left pane to change interactions and message flows. ## Use Cases **Interface Documentation**: Document API calls, method interactions, and communication protocols between system components. **Scenario Modeling**: Illustrate how different parts of a system collaborate to accomplish specific use cases or scenarios. ## Export Options Sequence diagrams can be exported in multiple formats. | Format | Description | | ------ | -------------------------------------------------- | | PNG | Export sequence diagram as a high-resolution image | | SysML | Export sequence definition in SysML v2 format |