The Data Subsetting function enables the creation of a new reduced environment starting from an existing environment using
                  selection criteria specified by the user. 
                  	  
               
            
 
            	 
             
               		
                The application structure of the Data Subsetting function is organized in two phases: 
                  		
               
 
               		
                
                  		
                   
                     		  
                     -  Creation of methods to generate a test environment 
                        		  
                     
-  Submission of extraction jobs (see the chapter 
                        			 Phase 4 Launch of the Extraction Jobs in the 
                        			 Data Subset Extraction Guide).