UC8::Maintain Product Catalogue
                     Overview
                     The merchant wishes to update their product catalogue. They may wish to add, delete or update items within the catalogue.
                        Updates might include changes to descriptions, prices (such as special offers) or a change to the delivery options that can
                        be supported.
                     
                     Document History
                     
                        
                           - Current Version1.3
 
                           - 1.1odlingsmee; 20 Sep 2009 ; Initial Revision
 
                           - 1.2odlingsmee; 10 Nov 2009 ; Added description
 
                        
                      
                     Properties
                     
                        
                           - TriggerA merchant wishes to review recent sales on the system.
 
                           - GoalTo review the volume / value of sales of the merchants products.
 
                           - Primary ActorMerchant
 
                           - Pre-RequisitesThe merchant shall be [UC1] logged on and registered as a merchant.
 
                           - Success OutcomeThe merchant will have been able to view (and print) the volume / value of sales for the period they were interested in.
 
                           - Failure OutcomeThe merchant will not have been able to access the sales reports - the system will have generated error messages and advice
                                 as to the appropriate recourse should they wish to obtain the details immediately.
 
                           - Priority2
 
                           - Complexity3
 
                           - Packagemerchant
 
                        
                      
                     Basic Flow