There are many links that a product needs to go through to sell to consumers, including offline physical links and online system links. After further abstracting the offline physical links, the self-operated e-commerce business can be divided into the following four parts, namely :
1. Purchase products from suppliers
2. Warehouse and manage purchased products
3. Put products on shelves for sale on e-commerce platforms
4. Perform delivery according to sales orders
Author: Zen and the Art of Computer Programming