We want to import BOM (Part Assembly) with reference designators from Windchill into WQS without splitting occurrences into multiple parts (same way as it shows on Windchill Part Structure Page). We are not able to do that. If we select to include reference designators in the import, then it splits part occurrences into multiple parts in WQS. This is not a desired behavior.
Splitting occurrences has issues, such as:
1) If we import a BOM which has, for example, 10,000 parts in Windchill, with split occurrences, its size in WQS becomes 100,000 parts or much more depending on the quantities and level. Loading and synchronizing such huge BOMs impacts the performance.
2) Users are confused working with split occurrences. For example, if a sub-assembly in the BOM has quantity 5, the whole sub-assembly and its components are repeated 5 times in the system structure. Think of a situation when the quantity is very large like 200.
3) Most of the reliability data is associated with part numbers and when one part is split in multiple rows, how (which row) do we record the FRACAS incidents and other WQS attributes? This also impacts FMEA.
In my opinion, splitting occurrences should be made optional.