SSIS Configuration Files

Hi

I have option to add config files at different places.

1) When designing the SSIS package config file can be added inside the pacakge

2) When deployed in SSIS (SQL Server storage) and executing the package there is tab for configuration file

3) when creating job to execute the package (either file system or SQL server storage) i see another config file table in stpes of the job.

Suppose i am adding config files in all 3 locations which one will overwrite which?

Ravi.S Chennai, Tamil Nadu, India