In case of queued delta LUW's r posted to extractor queue 
by scheduling V3job we move the documents from Extactor 
queue to Delta queue and we extract LUW's from Deltaqueue 
to SAP BW by running Delta loadsQueued delta maintains 
Extractor log to handle the LUW's which r missed.


In case of Direct delta LUW's r directly posted to Delta 
Queue(RSA7)and we extact the LUW's from DeltaQueue to SAP 
BW by running Delta loads.It degrades the OLTP performance 
becoz when LUW's r directly posted to DeltaQueue the 
application is kept waiting until all the enhancement code 
is executed.

in queued delta, the data comes first to extractor queue 
(LBWQ) and then upon following processing it move to delta 
queue.This Load is processed once data is queued with 10000 
LUW.
In Direct delta, Every document is one LUW and it comes 
direcly to delta queue(RSA7) and upon requent it is 
extracted to BW.