B2B stands for business-to-business and, as a term from eBusiness, describes electronic business processes between two or more companies. B2B servers play a fundamental role in business-to-business integration between companies. As a combination of software
and hardware components, B2B servers enable the electronic exchange of, for example, purchase orders or purchase confirmations between the trading companies. The B2B server software communicates with the client in order to gain access to the required data. The B2B server hardware is the computer on which the B2B server software runs.