DTW AND ITEM DATA MASTER

In order to upload the Item Data Master using the DTW, what could be possible scenario ?

1- Is there something in the Inventory general settings to keep in mind before the upload ?

2- What could be a logical order to follow ? , could it be something like this :

a- First define wharehouse , list prices etc.
b- Upload the Item data master (option Add New Data)
c- Upload Items-Wharehouses: Stocks, minimum, maximum (Update Existing Data)
d- Items and prices (Update Existing Data)

Could someone tell me if there is a better approach ?

Thanks in advance