Hi Paul,
As mentioned in my previous reply, New Architecture depends on Hana views that are used to select costs from line item table & Hana procedures are used to handle the calculation logic in the close transactions.
Technically, following changes have been made to closing transactions to make it faster using Hana:
say for example orders closings:
1. Selection Valid Orders
2. Select Orders Data (Replace by Hana)
3. Loop each order(Replace by Hana)
4.Aggregation (Replace by Hana)
5.Calculation
6. Database Update
7. User Interface Display
By replace data extraction by Hana inmemory instead of main memory resulting reduction of processing times. You may not be able to show all these. But you can keep both the systems and show the processing times reduction by replicating same amount of data. Another point to keep in mind is with my experience, it is helpful when you have large amount of data. You may really able to see any difference with small amount of data.
Regards,
Santosh Varanasi