xLPO along with APO

Folks,

We are currently analyzing usage of xLPO to implement lean production strategy.

Can anyone explain how we can integrate this with APO?

I am sure that APO is not full fledged to impelement any lean planning and sap's solution is XLPO. Please suggest the scenarios on how we can integrate APO with xMII and xLPO.

Thanks in advance

Bhaskar