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Electronic Commerce Introduction

Electronic Commerce Introduction. John Wordsworth Department of Computer Science The University of Reading J.B.Wordsworth@rdg.ac.uk Room 129, Ext 6544. Lecture objectives. Understand how the course works and where to find the materials.

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Electronic Commerce Introduction

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  1. Electronic CommerceIntroduction John Wordsworth Department of Computer Science The University of Reading J.B.Wordsworth@rdg.ac.uk Room 129, Ext 6544 3CSG1

  2. Lecture objectives Understand how the course works and where to find the materials. Describe how electronic commerce changes the relationship between customers and suppliers. List some of the technologies appropriate to e-commerce systems. Describe the place of the Internet and TCP/IP in electronic-commerce. 3CSG1

  3. How the course works Web page at www.rdg.ac.uk/~sis00jbw/jbwec1.html Basic ideas of e-commerce Software technologies for e-commerce Lectures Other sources Self-assessment questions Examination 3CSG1

  4. Some books Ince: Developing Distributed and E-commerce Applications. Addison Wesley, 1st edition, 2002, ISBN 0-201 73046-4 Chan, Lee, Dillon, Chang: Electronic Commerce: Fundamentals and Applications. John Wiley & Son Ltd., 1st edition, 2001, ISBN 0-471-49303-1 3CSG1

  5. Old-style commerce Supplier Look up stock Pick from shelf Update stock Create invoice Note payment Customer Send order Send payment order book and invoice cheque 3CSG1

  6. Electronic commerce Customer Search catalogue Choose some books Give CC details Print order details Supplier Review orders Pick from shelf Send book Confirm payment request book list order acknowledge CC details acknowledge book 3CSG1

  7. Levels of privacy private public public private 3CSG1

  8. Naïve views of electronic commerce Buyer Seller Buyer Retailer Wholesaler Seller Buyer Broker Seller Seller 3CSG1

  9. Three-tier architecture Web browser application server database server presentation business logic data mgmt CGI JSPs servlets ASPs EJBs ADOs HTML JavaScript ECMAScript applets 3CSG1

  10. Four-tier architecture mobile phone gateway application server presentation conversion business logic CGI JSPs servlets ASPs EJBs ADOs WML WMLScript 3CSG1

  11. The Internet and TCP/IP server client 123.231.132.213 132.213.123.231 host address 2130 2131 port number 21 23 80 Well-known ports: 21 FTP 23 telnet 80 HTTP 3CSG1

  12. A layered architecture for communications OSI TCP/IP family TCP/IP family Application HTTP HTTP Presentation Session Transport TCP TCP Datalink IP IP Network subnetwork subnetwork Physical 3CSG1

  13. Key points Refer to the Web page from time to time. There are lectures, supplementary reading, and self-assessment exercises to attend to. Electronic commerce changes the relationship between customers and suppliers. Electronic commerce has many forms. There are many technologies that we might study: only a few have been chosen. The basis of e-commerce communications is the Internet, and TCP/IP. 3CSG1

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