Services
                  IT BSS Specific Services 
                  Functional
                  
                    - Need to add new functionality  to existing billing environment while using a package based solution or new  development that covers the new functionality
Upgrade
                  
                    - Reaching a new version of  existing package based solution to cover new requirements in order to stay on  product roadmap. If there are major changes between versions, the ‘’upgrade transformation’’  becomes similar to ‘’replacement’’ in scope period of  the project
Replacement
                  
                    - Replacing a legacy system or  old package with new solution, covering current and future billing needs
Consolidation
                  
                    - Consolidation of several  different billing systems into one in order to reduce operational costs, as  well as, to have the same platform for all customers in the consolidated  platform