You are designing a SQL Server 2012 Integration Services (SSIS) deployment strategy. You currently have many SQL Server 2008 SSIS packages that require upgrading. The production environment includes…

You are designing a SQL Server 2012 Integration Services (SSIS) deployment strategy. You currently have many SQL Server 2008 SSIS packages that require upgrading. The production environment includes SSIS 2012 and SSIS 2008. The environment includes existing command shell scripts that invoke the dtutil command-line utility. You need to design a deployment strategy that supports existing deployment strategies and requires the minimum amount of effort. What should you do? (More than one answer choice may achieve the goal. Select the BEST answer.)