• Business-to-business;
  
• Business-to-consumer;
  
• Business-to-administration;
  
• Consumer-to-consumer;
  
• Business-to-state.

Business-to- business model is a sector which focuses on the work between the companies that produced goods and services. This sector of e-commerce exchanges between companies of raw materials and components, it is associated with sales. E-commerce model business-to-business provides the necessary conditions for cooperation partners in e-commerce.

The distinguishing features of this e-commerce model:

• Gateway automatically connect to the Internet from business systems;
• Integration systems of input and output data in the business processes of the company;
• Single standard used of transmitted messages;
• Firms are involved in e-commerce equity.

E-commerce model business-to-customer user is a sector that is focused on the work between company and consumer. Difference between this model and the model of classical trade directories is the client has the opportunity to make a purchase or obtain service without leaving your home using a computer and a credit card. It also has the advantage that the customer can design the object of purchase himself; for example, choose to print T-shirt or a label for jeans.

The distinguishing features of this e-commerce model:

• Trade is conducted through by managers;
• There is no integration between the specific business processes of the manufacturer and the external interface of the site shop.

Model Business-to-Administration encompasses all types of transactions between businesses and government organizations. For example, information about planned government purchases is published on the Internet in the USA. Each e-commerce companies can send their proposals electronically according to this model. Authorities can offer an electronic exchange for operations, for example, the VAT refund in addition to the announced procurement of administrative. This model is under development at this stage of development.

Model consumer-to-consumer is a sector where consumers communicate each other by visiting the web-site. If any online store can be attributed to electronic commerce it will be this particular e-commerce model. The community of people with one interest is formed around each site. The most striking example of a stable community is online auctions.