|  | This document is archived and information here might be outdated. Recommended version. | 
Provides access to model events.
| Name | Description | |
|---|---|---|
|  | OnBeginProcessExecution | Called when the execution of a process begins. | 
|  | OnEndProcessExecution | Called when the execution of a process ends. | 
|  | OnIterationExecution | Called at the end of Model Iteration to remove intermediate data. | 
|  | OnProcessChanged | Called when the process parameters changed. | 
| Classes | Description | 
|---|---|
| MdModel | A collection of model variables and processes, used to execute multiple geoprocessing tools in some order. | 
| MdModelEventsHelper | Helper for working with IMdModelEvents. |