Transportation zone,time,duration,loading group,Route ECC and APO

Dear Experts,

can someone explain what is

!) Loading group

2)Transportation zone

3)Transportation time

4) Transportation duration

5) Route and Route determination

6)Transportation group

where it is maintained  in ECC  and when we cif to apo where these information sits

in which transaction object in ECC and APO used and how these information influence in planning and Execution

I know i am combining all in one but i feel all the above have interlink each other

Thanks in advance

Regards

Raj