In SSIS 2012 there are two scopes on which parameters can be defined:

– project

– package

Projects parameters

If you want to show / edit SSIS project parameters in Visual Studio 2012:

Open the solution explorer and under the project, there’s a folder [Poject.params]:

Clicking on the folder [Poject.params] will show the project parameters.

Package parameters

If you want to show the packages parameters, open the package and click on the Parameters tab: