Overlapping and splitting

Question

Dear All,
What is Overlapping and splitting, where do i  assign?

Answer 1

Now
Splitting
An operation is split if it is carried out on several machines or by several persons at the same time (see figure).
Splitting an operation has the following effects on the operation dates:
The processing time/execution time becomes shorter.
Setup and teardown must be carried out more than once for the operation
http://help.sap.com/saphelp_47x200/HELPDATA/EN/7e/d419b7455911d189400000e8323c4f/frameset.htm
Overlapping
To reduce the lead time of a routing or production order you can overlap operations. This means that an operation starts before the previous operation has finished
You can define for each individual operation whether it should overlap with the next consecutive operation and in what way. To do this you can set the following indicators:
Required overlapping
This means the operations always overlap
Optional overlapping
This means the operations overlap if scheduling uses a reduction level that allows overlapping
Flow manufacturing
This means the system extends the lead time of all operations, that overlap using flow manufacturing, to the same length as the lead time of the longest of these operations. As with required overlapping, the operations always overlap.
For every type of overlapping you can
Define a minimum overlap time which only allows overlapping after a particular minimum limit has been reached.
Define a minimum send-ahead quantity to ensure that the operation is performed for a particular minimum quantity of the material to be produced, before the next operation starts.
http://help.sap.com/saphelp_47x200/HELPDATA/EN/8b/67221404f111d293560000e8323492/frameset.htm
pavan