Please read the following excerpt from a class report by Acer $($a student in Operations Management class$)$ on DELL's strategy:

"DELL works on build to order business model and uses Just in time strategy to distribute its products at optimal prices there by decreasing the inventory cost and delivery time. Dell offers its customers to build up your laptop with the specifications that they want, thereby giving them a customized laptop. In order to support its hardware business it has DELL Solution Centers to provide support services $24/7$ to its customers."

Based on this excerpt $($and our in$-$class discussions related to Southwest Airlines and Noodle & Company$),$ list two elements of its operations strategy, and provide two comment on how these elements help reinforce its competitive strategy?

Q$9$: $($Any$)$ Two elements of its operations strategy are: $($be as succinct and brief as possible$)$