E-commerce involves buying and selling of products and services by businesses and consumers through an electronic medium. Broadly, e-commerce is classified into four categories: business to business or B2B (Cisco), business to consumer or B2C (Amazon), consumer to consumer or C2C (eBay) and Business-to-Government (B2G).
Business-to-business e-commerce involves agreements between the businesses and businesses. Distribution management, inventory management, channel management, supplier management and payment management are some of the areas in which B2B applications are widely used. In Bangladesh, bgmea.com.bd, bizbangladesh.com are examples of B2B platforms.