Configuring the Creo View Adapter for GAF/GBF > Server Controlled Publishing for DGN
  
Server Controlled Publishing for DGN
When the Visualization server initiates a request to convert GBF data to the Creo View format, the server uses the gbfworker to convert the file in the background. This Visualization server could be a Windchill server or another customized server environment.
The GBF worker is an important link in achieving the full functionality of the Visualization server. For more information, refer to Visualization Server Definition.