Topics: XML, HTML, World Wide Web Pages: 3 (596 words) Published: April 14, 2013
Assignment 1
School of Software Engineering, HUST_ Electronic Commerce
Student Name (in Ping Yin): ChenWei|
| In Chinese: |
陈微| Student No. |

Logger cuts down trees
Exercise 1:

Sawmill converts logs to lumbers

Lumberyard(distributor)provides selection of lumber

Paper mill mills the wood processed into paper

Printing printed and bound into a book

Book retailer markets and sells books

Consumer purchases and uses books

Landfill or recycler disposes of books

Exercise 2:
As companies began to conduct electronic commerce on the Web, the need to present large amounts of data on Web pages also became important. Companies created Web, the need to present large amounts of data on Web pages also became important. Companies created Web sites that contained lists of inventory items, sales invoices, purchase orders, and other business data. The need to keep these list updated was also important and posed a new challenge for many Web designers.

In the late 1990s, companies began turning to XML to help them maintain Web pages that contained large amounts of data. The full name of XML is Extensible Markup Language, it is a simple, very flexible text format derived from SGML (ISO 8879). Originally designed to meet the challenges of large-scale electronic publishing, XML is also playing an increasingly important role in the exchange of a wide variety of data on the Web and elsewhere.

XML uses paired start and stop tags in much the same way as database software defines a record structure. For example, a company that sells products on the Web might have Web pages that contain descriptions and photos of the products it sells. The Web pages are marked up with HTML tags, but the product information elements themselves, such as prices, identification numbers, and qualifications on hand, are marked up with XML tags. The XML document is embedded within the HTML document. What’s...
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