The Electronic Commerce is introduced mainly through two modality of interactions to second that the adressee of the offer is an other company (Business-to-Business, B2B) or the final consumer (Business-to-Consumer, B2C).
If the B2C is the known shape of eCommerce more and substantially indicates the supply of goods and services directly to the final customer, the Electronic Commerce Business-to-Business comprises the transactions that they see been involved like controparti two or more companies: it indicates all those stiff initiatives to integrate the business activity them of a company with that one of the own customers or the own suppliers.
The information is the entity centers them of this approach and must move in parallel with the logistic flow and in both the directions '' just the movimentazione of the information to often reveal the critical point in the supply of a service: it has been in fact calculated that the amount of demanded documentation in order to move of the goodses from a part to the other of the globe frequently demands longer times of the same physical movimentazione. From this point of view, Internet can make to achieve to the companies great advantages, rendering possible the transmission of information, gives and documents to you in real time '' [ Pianola 2000, Tripodi 2001, Meneghel 2004 ].

Commerce B2B puts into effect rests them on the had ventennale experience with EDI (Given Electronic Interchange), that it is very far away from the being set aside from the great actors of the electronic commerce Business-toBusiness. EDI inefficiencies however have become the points of force of new standards B2B, faces to the automatization and integration of the processes and base to you exclusively on use of Internet.
The differences between the two tipologie of eCommerce (B2C, B2B) are translate are in interactions between the diametrically opposite economic actors who in deeply various strategies of sale. In the first case two praxes are found to comparison trade distinguished them completely.

1. B2C, based on the relation with the customer, privileges the aspect of front-end of the business, realizing spontaneous interactions with the customer, little formalized and not structured. The final customer does not need the use of standard in how much he is the final ring of the chain of life of the good and only the its worry is to consume acquired how much.
2. B2B, instead, privileges the aspect of the back-end: it is concentrated in fact on the interactions, structured and often standardized, between the economic actors and on integration of their systems informed to you. The spontaneità of the relations with the final, typical customer of the B2C, is replaced from the formalizzazione of the relations between the been involved economic parts, or rather between their Systems Informed to you Business. Not being more been involved the final consumer, they are found to interact between they of the entities that must plan all a series of operations in order to realize in satisfactory way theirs business, need therefore of formalizzazioni.