Perform the following tasks to define a metamodel extension with Architecture Modeler: 
               	 
            
 
            	 
             
               		
               - Load an existing metamodel. 
                  		
               
- Save the metamodel with the name of your extension. 
                  		
               
- Add a sample source file of the type you want to support in 
                  		  EA. 
                  		
               
- Define the entity types for the add-on. 
                  		
               
- Define the relationship types for the add-on. 
                  		
               
- Map search patterns for the entity and relationship instances you want the parser to extract. 
                  		
               
-  Export the model to 
                  		  EA. 
                  		
               
- Reconfigure 
                  		  EA. 
                  		
               
Before turning to these tasks, users who are new to 
               		EA may want to familiarize themselves with the concepts underlying the 
               		EA metamodel. Experienced users can skip straight to the tasks.