LSMW

Hi All,

I am having some doubts in LSMW,please clarify..

1) why we use LSMW insted of BDC

2) why we use recording

3) why we use direct input method

4) why we use BAPI

5) why we use IDOC

6) what regular problems we get while using LSMW

Points will be rewarded....

Thanks,

Madhukar