In this opening Discussion you are to describe the differences between the supply chains for the retail business of Walmart and Dell.
Think about this: What makes two organizations a bit different? It could be what they sell? it could be where their products comes from?
Examine what your colleagues find as a “difference” with your replies asking about what they found.
Here is a source to use; but you are more than free to do an Internet search for Walmart and Dell supply chain.