I have downloaded Big Smoke Assignment too and here some points are not clear for me:
Big Smoke has existing inventory system ...
System send a request containing product Id to the inventory system
Question 1:
Can we make this assumption: total available for sale is sum of Big Smoke inventory and manufacturer's inventory?
My interpertation is that "the" system is Big Smoke inventory System and manufacturer are suppliers of Big Smoke inventory system.
With this assumption we have to check two inventories for each product, Big Smoke and manufacturer
Question 2:
What if between add to shopping card time and check out time inventory changed?
In this case shipment may delayed for a some time. is that acceptable risk?
Thanks in advanced