so there is the ati ccc drivers and the amd app sdk

i'm confused. why are people installing the amd app sdk?

unsure of linux installs but on windows once you decompress the ati ccc drivers there is opencl drivers there for you to install, that is how i have always done it and cgminer always works correctly.

question is why are people still recommending people to install amd app sdk, obviously i am missing out on something so i am here asking.

thanks.