You are designing a SQL Server Integration Services (SSIS) solution. The solution will contain an SSIS project that includes several SSIS packages. Each SSIS package will define the same connection…

The project deployment model deploys packages to the SSISDB catalog, which exposes the catalog.start_execution stored procedure used to start executions programmatically - directly satisfying that requirement. Project-level parameters combined with SSISDB environments allow connection string values to be overridden at execution time without modifying packages. Defining connection managers and variables once at the project level rather than per-package also minimizes development effort and maximizes execution performance by reducing redundant configuration overhead.

The package deployment model stores packages in the file system or MSDB rather than the SSISDB catalog, so the catalog.start_execution stored procedure is not available, and connection string parameterization at execution time requires the older, more complex package configuration mechanism instead of project parameters.

Same limitation as choice C - the package deployment model does not use the SSISDB catalog infrastructure, cannot use catalog.start_execution, and does not support project-level parameter management, failing two of the stated requirements.