Electronic business transaction system

An electronic business transaction system provided for a product purchaser to purchase a product from a product supplier, and for a product delivery service provider to deliver the product to an address of a product receiver specified by the product purchaser, comprising:

• a terminal of the product purchaser connected to an electronic communication network;
• a terminal of the product supplier connected to the electronic communication network;
• a terminal of the product delivery service provider connected to the electronic communication network;
• and
• a terminal of an information administrator connected to the electronic communication network;
• wherein said terminal of the information administrator is arranged to add an identification code specific to the product purchaser and an identification code specific to the product receiver to individual information data including a name and an address of the product purchaser and a name and an address of the product receiver to generate data, and to accumulate the data to construct a database,
• said terminal of the product purchaser is arranged to instruct the identification code and the product to be purchased to the terminal of the product supplier without disclosing the name and the address of the product purchaser and the name and the address of the product receiver,
• said terminal of the information administrator is arranged to identify the name and the address of the product receiver using the database according to the identification code of the product receiver, and
• said terminal of the information administrator is arranged to instruct the name and the address of the product receiver and the product to be purchased to the product delivery service provider without disclosing the identification code of the product receiver so that the information administrator requests the product delivery service provider to deliver the product to the product receiver.