您在這裡

Electronic commerce applications

19 一月, 2016 - 14:50

Finally, on top of all the other layers sits an application. Consider the case of a book seller with an on-line catalog (see Table 2.1). The application is a book catalog; encryption is used to protect a customer's credit card number; the application is written in HTML; HTTP is the messaging protocol; and the Internet physically transports messages between the book seller and customer.

Table 2.1 An electronic commerce application

Electronic commerce applications

Book catalog

Business services infrastructure

Encryption

Electronic publishing infrastructure

HTML

Message distribution infrastructure

HTTP

National information infrastructure

Internet