Hello Fernando
Process orders are generally scheduled both forwards and backwards. The scheduling type defines which scheduling direction is taken into account first. The dates of the earliest dates result from forward
scheduling. The dates of the latest dates result from backward scheduling. The operation dates are determined from the dates of the respective phases. Here, the min max rule applies, the earliest start and latest finish dates are copied to the operation dates.
For more information please have a look at the consulting notes 156115 and 151503.
BR
Caetano