[yocto] Difference b/w SDK and ADT

[Raghavendra Kakarla]

Hi All,  

I have the following doubts regarding the yocto SDK and ADT. Could you please clarify them.

They are:
            
       1. What is the difference b/w the YOCTO SDK and ADT?
       2.  With the ADT can use the my bitbake generated sysroot for my application development? Because I built   the required custom packages in yocto for my software development.                                             

 Thanks in advance.
 Regards,
 Raghavendra Kakarla.