After the COBOL file definitions have been imported into the Relativity catalog, you may need to provide further maintenance
                  from within the 
                  		  Relativity Designer. Consider the following examples: 
                  		
               
 
               		
                
                  		  
                  - Record layouts for a file definition have changed from when the information was originally added to the catalog, and so the
                     modified file definition information needs to be merged from the COBOL source into the existing catalog information. See 
                     			 Updating COBOL Data File Definitions 
                        			  for more information. 
                     		  
                  
- Several designers each design and test a Relativity catalog, and then the results are required in a single catalog for the
                     end-user. (Relativity does not permit multi-user access of the catalog by designer developers.) In this scenario, you would
                     merge file and table definition objects from one or more Relativity catalogs into the current catalog. See 
                     			 Merging Definitions from Another Relativity Catalog 
                        			  for more information.