The commerce on Internet, if it is watched to the volume of the transactions, continues to be dominated from the exchanges between companies, from the B2B therefore; this for one series of good reasons: acquaintance and certification of the supplier, ripetitività of the purchases, insertion of the transaction in the within of automated procedures in part, management of the Supply Chain.
According to esteem EITO - IDC [ SMAU 2004 ], in western Europe the eCommercio would have generated in all in the 2003 476,7 billions of euro: for 86.7%, (413,6 billions) generated from the companies, while only 13.2%, (63.1 billions of euro) moved from the final customers.
Rates of growth are previewed equal for the two members also for the next years, par to 50% annual mean, arriving therefore to a total of 2.423 billions of euro in 2007.

In the world
In the 2003 world-wide B2B on-linens it has caught up the figure of 1.3 trillions of dollars exchanges to you between companies; the USA alone have totaled more of the half of the turnover total, (eMarketer 2004).
According to this search, moreover, Germany, Sweden, USA and Finland are the countries more are left over to you in the field of the technology for the eBusiness. More of 70% of the companies in these countries the purchase has experimented on-linens.
The figure 6 (Laudon 2003) represents the increase of world-wide commerce B2B from 2001 to 2006. It analyzes is the course of commerce B2B on-linens, is of that traditional one.
According to they give to you of forecast, transactions B2B on-linens they will pile in 2004 to approximately 2.7 trillions of dollars and will increase until catching up, in 2006, nearly 5,5 trillions of dollars. The esteem, therefore, previews that the volume of transactions generated will double within 2006.

Figure 6 - Increase of electronic commerce B2B

The fields pulling ahead in the B2B turn out to be, figure 7 (Laudon 2003):

• the chemical industry;
• the metalliferous and extractive industry;
• the automotive field;
• the aerospace field and of the defense;
• the field of the telecommunicationses and the computers.

fig. 7 - Fields of Commerce B2B

In Italy
The Italian B2B turns out in increase, with a passage from nearly the 24 billions of euro in 2001 to the 360 previewed billions of euro for 2005, like in figure 8 second the esteem of Jupiter Research (Jupiter 2004).

Figure 8 - Increase of the B2B in Italy, Source: Jupiter

One study lead from the Polytechnic Association Enterprise, of the Polytechnic of Milan [ AIP 2004 ] filler gives you relati you to 2003: the Italian B2B is involved a turnover of the amount of approximately 84 billions of euro, 5% of the traditional transactions between the enterprises and 10 times a lot regarding electronic commerce B2C. The search has selected two ambles applied you to you of the B2B:

• eProcurement, divided in activity of eSourcing and eCatalog.
• eSupply Chain, uniform in eSupply Chain Execution and eSupply Chain Collaboration.

Figure 9 - Distribution of eCommerce the B2B in macro-processes
Source: Polytechnic Association Enterprise

The fields that they have obtained greater happening in the eCommerce are, according to the same study:

• the automotive field with 34%;
• the druggist field with 16%;
• the alimentary field with 11%;
• the field of the tourism with 10%.

• to the first place platforms EDI and other platforms owners with 70%;
• to according to place we see that 21% of the exchanges transa instead on Internet nets;
• to the third party place the hybrid solutions are placed deriving from the migration of systems EDI on Internet with 9%.

Figure 10 - Technological platforms for eCommerce B2B
Source: Polytechnic Association Enterprise

How much saying allows to delineate in preciser way the Italian panorama puts into effect them that it is characterized from the presence of little but consisting large network bases to you on traditional EDI, that they support the activities of eSupply Chain Execution. That happens above all in the automotive, druggist field and of the household-electric ones, in which they are defined of the universal standards for the format of give to you. They are in increase the plans of integration of nets EDI with the Internet technologies, in order to extend the activities of eSupply Chain Execution also to small and averages companies with volumes of acquisto/venduto smaller.
Numerous tipologie of simpler collaborations exist moreover (that they extend, as an example, the visibility of the plans of production to the suppliers) based on traditional EDI; shapes of wider collaboration, like Co-design or collaborativa planning of the production, based on Internet are still little diffuse, like pure the applications of eCatalog.
The activities of eSourcing are being diffused in substantial way put into effect through it use of technological platforms and services supplied from third parts. They are just these operating B2B to carry out a predominant role in the Italian panorama, like is looked at in figure 11. Draft of suppliers specializes you of services for the support of the relations between the suppliers and the customers: VAN (Value Added consortili, operating Network) EDI, Marketplace specializes to you in the eSourcing and/or the eCatalog, Supply Chain Service Provider. They catalyze nearly 50% of the total eCommerce, with wide predominanza of traditional VAN EDI.

Figure 11 - The role of the operating B2B
Source: Polytechnic Association Enterprise

Possible E' to this point to make of the forecasts for the future, trying to characterize main trend the evolutionary ones (you see figure 12).

Figure 12 - Trend waited for in the next few years
Source: Polytechnic Association Enterprise

One is estimated strongly increase of eCommerce the B2B based on Internet technologies, above all for the applications of eProcurement and in particular of eSourcing. It comes reorganized the development of traditional systems EDI, that it continues limitedly to the fields in which recognized and consolidated standard represents one. It grows in meaningful way, instead, the employment of hybrid systems of EDI on Internet, that they allow a lowering of the costs and I use it also from part of the small and averages enterprises. Beyond to the activities of eSupply Chain Execution, it increases the role of the applications of eSupply Chain Collaboration based on EDI and InternetEDI. A relief place remains to the operating B2B thirds party, in particular to those it bases to you on Internet nets that support the eSourcing and eSupply the Chain Collaboration.