Business to Business or B2B model
This model of electronic commerce is the most important type of electronic commerce, which accounts for about half of electronic commerce revenues. This model will cause the emergence of extensive communication between suppliers, manufacturers, distributors and sellers. In this model, the relationship between two or more organizations, economic development, producers of raw materials and providers of various types of services is desired. In fact, this model can be seen as an extension of the old EDI (Electronic Data Interchange) model, but in this model, intermediaries have been reduced, which in turn will reduce prices.
Consumer to Consumer or C2C model:
This model of electronic commerce is mostly dedicated to retail sales of second-hand household goods. Where buyers and sellers are both from the final group, and in the meantime there is no trace of the producer or middleman. A common example of this type of business can be seen in Friday markets or local and regional auctions, where everyone exposes their manufactured goods to buyers as a single sale. One of the most famous examples of this model of electronic commerce is eBay.
Government to Customer or G2C and Customer to Government or C2G models:
It includes the services that the government can provide to the people, or it is a basis for facilitating the financial communication between the people and the government in tax matters, or the request for services provided by the citizens to the government, which can include various requests in the economic field and or business.