'init load' & 'full load'??

Hi all,

Can anyone correct this if i am wrong?

--My question is that I need to delete 'init load' & re-load it with 'full load' and then create the 'process chain' to transfer data periodically after I loaded data first time with 'init load' and the data was tested, right?

--If not, what it is after I loaded data successfully with 'init load' in the first time?

--Do I always need to use 'init load' for first time data load? If not, what is the situation that I need to use 'full load' for the first time data load?

Thank you