Exercises Topic1: E-commerce, distributed applications

Topic1: E-commerce, distributed applications

Ecommerce

The Buying and selling of goods and services on the internet is called e-commerce. It includes B2B buying and selling, the security of business transactions, the B2B exchange of data, the gathering and use of demographic data though Web contacts.

Why E-commerce is Important

· It is user friendly

· Open 24*7 hr

· Globalization- u can buy anywhere in any country

· It is much chipper then in the shop

· It provides flexibility, speed, competitive

On the other hand there are some issues regarding internet security and some people are not relay on the internet shopping because they think that its breach of privacy.

There are some sites with e-commerce like

· Greengrocer store in Melbourne and Sydney: http://www.greengrocer.com.au/

· Travel agent: http://www.travel.com.au

· Gift shop: http://www.wishlist.com.au/

· Wine store: http://www.wineplanet.com.au/

E-commerce Infrastructure

Distributed Application

Computing is said to be "distributed" when the computer programming and data that computers work on are spread out over more than one computer, usually over a network. Distributed application have two parts first the 'front end' that requires minimal computer resources and runs on the client computer(s), and (2) the 'back end' that requires large amounts of data crunching power and/or specialized hardware, and runs on a suitably equipped server computer.

Reference

Ince, D. (2004). Developing distributed and e-commerce applications (2nd ed.). Harlow, Essex,UK: Addison-Wesley