SAP BW 3.52 and POS DM: Architecture Best Practise

We are retail/wholesale company that are two different business units. Currently we are running SAP BW 3.0 that is integrated with SAP R/3 and APO for reporting purposes. We are now in the early stages of implementing SAP Retail along with SAP POS DM to support the Retail business. We have a question re the architecture and the best practices. We were told that POS DM is integral part of SAP BW 3.52 i.e. a function within BW application. We would like to run the retail instance of SAP BW on a separate box and separate the POS DM onto another box. The reason being, POS DM processes all the store POS transactions through either to IS-Retail or SAP BW. We believe the transaction processing that occurs in POS DM should be separated from SAP BW, in order maintain efficiencies. Can anyone share their perspective and experience on what the best practice would be? Also, is it possible to do what we would like to do i.e. POS DM and BW running on different boxes?
Please advise.
Thanks
Satish Seshayya

Information about POS DM should come within the next time as a Update of the Solution Manager.
Some Remarks :
The best way to get some information is to contact SAP-Sales The most of my customers run POS DM on the same Box as BW.
A typical process will look like this :
POS System is mapped via Converter (e.g. XI) to the BAPI of the PIPE (/posdw/bapi_postr_create). Also you could feed the PIPE via IDOCS or via direct input (Proxy).
You've got some internal tasks running for validation of the data (sequencing, duplicate...) and you can schedule other tasks to supply the R/3 with IDOCs and to write Data to the DeltaQueues where BW can take the Data.
You can plan everything time-based. Thats meaning as long you don't have a huge amount of data (e.g. >12.000.000 LineItems/day) you should get no big problems with the right hardware.
Also you're able to do "trickle feed", that's more or less an immediatley processing of the data (e.g. directly or every 2 hours)
wish u much luck

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