Electronic commerce(EC) at one of form, enterprise (business) with the general consumer (consumer) it is transaction. Transaction between enterprisecalls the transactionof B to B and the generalconsumer C to C.Being readythe store on Internet, the online shop which sells the commodity tothe consumer(the electronic store) is the most general form, butlike business and the online game and the online trade which sell the contents of the software and the picture andmusic etc. also the enterprise which offers service has appeared.
