All depends on how the folk who set up the program went about their business. If the associated paperwork doesn't specify, then you should check.
However, you would be pretty safe presuming that the AFM distance data is used and then carried on to DER. It would make little sense to do otherwise - mainly due to the workload in splay obstacle assessment.
Caveat - the greater concern is tracking. Invariably (there may be the odd exception but I have never seen one), the OEI departure track will be based on tracking over DER so that you are placed in the normal departure splay. This will require positive ID at that point which often limited ceiling and visibility for departure pre GPS.
STODA data also is useful in the absence of Type A etc. - allows one to run up the STODA intersections as dummy obstacles which may provide some extra payload, especially if the Type has a first segment problem, as some do.