Various types of E-Commerce : -

• Business-to-Business (B2B)
• Business-to-Consumer (B2C)
• Consumer-to-Administration (C2A)
• Consumer-to-Consumer (C2C)
• Consumer-to-Business (C2B)
• Business-to-Administration (B2A)

Explaination : -

• Business-to-Business (B2B) - A B2B model of business involves the conduct of trade between two or more businesses/companies. The channels of such trade generally include conventional wholesalers and producers who are dealing with retailers.

• Business-to-Consumer (B2C) - Business-to-Consumer model of business deals with the retail aspects of e-commerce, i.e. the sale of goods and/or services to the end consumer through digital means. The facility, which has taken the business world by storm, enables the consumer to have a detailed look at their proposed procurements before placing an order. After the placement of such orders, the company/agent receiving the order will then deliver the same to the consumer in a convenient time-span. Some of the businesses operating in this channel include well-known players like Amazon, Flipkart, etc.

• Consumer-to-Administration (C2A) - The Consumer-to-Administration model encompasses all electronic transactions conducted between individuals and public administration. Both models involving Public Administration (B2A and C2A) are strongly associated to the idea of efficiency and easy usability of the services provided to citizens by the government, with the support of information and communication technologies.

• Consumer-to-Consumer (C2C) - This business model is leveraged by a consumer for selling used goods and/or services to other consumers through the digital medium. The transactions here are pursued through a platform provided by a third party, the likes of which include OLX, Quickr, etc.

• Consumer-to-Business (C2B) - In C2B there is a complete reversal of the traditional sense of exchanging goods. This type of e-commerce is very common in crowdsourcing based projects. A large number of individuals make their services or products available for purchase for companies seeking precisely these types of services or products.

• Business-to-Administration (B2A) - This model enables online dealings between companies and public administration, i.e. the Government by enabling the exchange of information through central websites. It provides businesses with a platform to bid on government opportunities such as auctions, tenders, application submission, etc. The scope of this model is now enhanced, thanks to the investments made towards e-government.