The buttons listed on the 
                  Classes - Assignment page of the 
                  Work with Data Elements area are:
                  
               
               
               
                  
                  
                  - Refresh
                     
                  
- Refreshes the window.
                     
                  
- Assign Class
                     
                  
- Assigns a class to a list of selected data elements. The steps are as follows:
                     
                     
                        
                        - Select the fields involved in the association from the 
                           List of Data Elements grid.
                           
                        
- Click the 
                           Classes - Assignments tab.
                           
                        
- Select a node on the class tree.
                           
                        
- Click 
                           Assign Class.
                           
                        
 
- Clear Class
                     
                  
- Deletes the class associated with the list of selected data elements. The steps are as follows:
                     
                     
                        
                        - Select the data elements involved in the disassociation from the 
                           List of Data Elements grid.
                           
                        
- Click 
                           Clear Class.
                           
                        
 
- Close
                     
                  
- Closes the window.