Summarize the papers briefly.
paper 3
paper 6
paper 7
2. According to Chap. 6 of Textbook. what is a functional architecture of e-commerce systems?
A2: the system architecture is the way it decomposes the system into functional units. The specification of these functional units and the interfaces between them defines the architecture of the system. For analysis of architecture, we have found it convenient to consider four primary components of Internet commerce systems.
- Client : The client is a computer system, typically a personal computer, connected to the Internet either directly, through an Internet service provider (ISP), or indirectly, through a corporate network. The buyer uses the client computer for browsing and purchasing.
- Merchant : The merchant is the computer system or systems that contain the seller’s electronic catalog and, in the case of online goods, products for over-the-Net fulfillment.
- Transaction system : The transaction system is the computer system or systems that process a particular order and that are responsible for payment, record keeping, and other business aspects of the transaction.
- Payment gateway : The payment gateway is the computer system that routes payment instructions into existing financial networks such as for credit card authorization and settlement.
Various architectures use these four components in different ways. In some systems, some of these components are combined into a single computer system, whereas in others these four system components are implemented by separate computer systems.
3. Lab: PageRank
PageRank is a tool for measuring the importance of websites. Given every URL, there is a PageRank value for it.
Install PageRank on your Firefox. Perform the measurements in terms of PageRank the following websites:
New York Times http://www.nytimes.com/
CNN http://www.cnn.com/
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