This document discusses e-commerce and provides details about the e-commerce process. It defines e-commerce as buying and selling goods and services over electronic systems like the internet. It describes the process a consumer goes through to make a purchase on a merchant's website including browsing products, adding to a cart, checkout, and receiving purchases. It also outlines the different types of e-commerce including B2B, B2C, C2C, and C2B. Finally, it lists some popular Bangladeshi e-commerce portals.