Any Element Type can be modeled as a Container Element Type. Container element types represent elements that are able to contain
               or reference other elements. Therefore container element types are used to define a hierarchical structure of a connected
               system. 
               	 
            
 
            	 
            
               	 
            
 
            	 
            Note:  Container Element Type is a logical concept. There is no physical representation of it in the AWM meta model.
               	 
            
 
            	 
            Examples: 
               	 
            
 
            	 
             
               		
               - Container Element Types for an SCM system 
                  		  
                  
                     			 
                     - Project (a project may contain development stages as elements) 
                        			 
                     
- Stage (a development stage may contain source types) 
                        			 
                     
- Source (an element may contain Includes or Copies)  
                        			 
                     
- COBOL Copy (a COBOL Copy may contain other Copies)