##### Supporting Information > Stream Diagram

# Stream Diagram Icons

Below is a table outlining the icons that can appear in a stream diagram and what they represent.

Icon | Description
| This icon indicates the start of a stream flow.
| This icon indicates the default path from one page to the next.
| This is the default page icon. The default path flow in the left side of the icon and out the right. Branches may occur during page load, if action occurs while the user is viewing the page, or during page unload. The branches would be linked to the bottom of the corresponding section of the page.
| The yellow star in the upper left corner of this page icon indicates that an action occurs when the page is loaded.
| The yellow star in the upper left and lower right corners of this page icon indicate that actions occur when the page is loaded and unloaded.
| The yellow star in the lower right corner of this page icon indicates that an action occurs when the page is unloaded.
| Paths that are not part of the default flow are indicated by a blue arrow.
| This icon indicates a branch. The branching logic is noted inside the icon. The default path continues out of the right corner and the branching path is indicated by a blue arrow out of the bottom of the icon.
| The icon indicates a branch with return. The default path continues out of the top right corner and the branching path is indicated by a double blue arrow out of the bottom of the icon, indicating the return to the branch. The arrow leaving the lower right corner indicates where the branch is going after the return.
| This icon indicates that the flow branches to a page that is not part of the current stream flow.
| This icon indicates that there is an error in the flow such as an invalid branching condition.
| Paths containing errors such as invalid branches are drawn in red.
| This icon indicates the end of a stream flow.
| This icon indicates that the current flow has ended and continues in the next stream. The stream name will appear in the center of the icon.