| Name | Description |
|---|---|
| IAttributeCollection | Defines a collection of attributes. |
| IExtension | Defines an extension. |
| IExtensionManager | Defines an extension manager. |
| ILog | Defines log engine. |
| IParameter | Defines a design parameter. |
| IParameterManager | Defines a parameter manager. |
| ISelectionInfo | Defines a selection information. |
| ISelectionManager | Defines a selection manager. |
| SelectionTypeEnum | Specifies the selection type. |
| StateMessageTypes | Specifies the selection type. |