Cpanil's Blog

Exercise 11

cpanil — Thu, 16 Apr 2009 08:31:54 +0000

1. Conduct research on the Internet to find out what tools can be used to parse an XML document and ensure that the document is well formed and valid.

2. XML schema is a forthcoming development of the technology. Visit the W3C website and search for information on schema. What are the benefits of adopting a schema standardized for a business sector?

3. What are DOMs and why were they developed?

4. Why are some developers using SAX instead of DOM for document processing?

5. SMIL is an application of XML. What is the purpose of this technology? Where does it apply?

6. The current recommendation of W3C is to use XHTML as an alternative to HTML.

7. Do you think adopting XHTML is a wise move?

Exercise 10

cpanil — Thu, 16 Apr 2009 08:31:13 +0000

1. List some application servers in competition with ZOPE. Access the web and find the latest version of the application servers mentioned in the text. When were they released? Can you make any conclusion about the release cycle of Internet software in comparison to other business software (e.g. spreadsheet, word processor, accounting packages)?

2. List the main Web servers. What types of companies are offering the leading servers? Distinguish between open source and proprietary products. Who is providing support for the products? How much do they cost? Do you think the Web server purchase price is a significant factor in budget considerations for a large e-commerce initiative?

3. Go to the website of IBM, Oracle, Microsoft and Sybase. Is there any mention of e-commerce associated with their database products? What suite or partnership do they list with related e-commerce offerings? How do they compare with open source products like MySQL?

4. Access the web and find the current rate for website hosting. What are the criteria used by the ISP for pricing?

5. Why is the perception getting stronger that integration will become a critical factor in coming days? What is the role of ERP within the enterprise software architecture?

6. What is Customer Resource Management and why is it important to e-commerce?

7. What are the differences between HTML and DHTML?

8. Why was XHTML developed? Do you think this addresses most of the HTML weaknesses?

9. What are the similarities between JavaScript, VBScript and ZOPE’s DTML?

10. What are the similarities and differences between ASP, JSP and PHP?

11. What are the differences between the various approaches to scripting?

12. List some of the shareware or freely available tools for web design. In addition to a good HTML editor, what utilities could be very handy to the developer?

Exercise 9

cpanil — Thu, 16 Apr 2009 08:30:36 +0000

1. Design the form

“Retrofit” the form data string above for buying some French perfume into the HTML form fields and submit button on the Web page form.

2. Write the script

Script archives exist for PERL, Python and JavaScript. Search the Web for a script that processes the HTML forms data. Read the code and list the steps involved in processing the form.

3. Can you modify the script to process the form?

Exercise 8

cpanil — Thu, 16 Apr 2009 08:29:34 +0000

1. Start with a simple table in the database:

mysql> SELECT * FROM employees;

2. Create a web page with the following PHP:

$db = mysql_connect(“farrer.csu.edu.au”, “keustace”, “password”);

mysql_select_db(“mydatabase”,$db);

$result = mysql_query(“SELECT * FROM employees”,$db);

echo “First Name: “, mysql_result($result,0,”first”), “
”;

echo “Last Name: “, mysql_result($result,0,”last”), “
”;

echo “Address: “, mysql_result($result,0,”address”), “
”;

echo “Position: “, mysql_result($result,0,”position”), “
”;

My password is included? We look at security later…☺

3. This is how we can add a record and is part of a file to create called add_record.html

Exercise 7

cpanil — Thu, 16 Apr 2009 08:29:00 +0000

1. Create an HTML page with the form:

2. Then, create a PHP file named submit.php with the following code:

echo “Hello, “, $myname;

Exercise 6

cpanil — Thu, 16 Apr 2009 08:28:27 +0000

1. In this exercise with can call up and examine some environment variables on the server. The code below has the UNIX environment variable for storing your remote Internet address. UNIX environment variable are recognised by the use of upper case letters. Try the same code by replacing with $REMOTE_ADDR $SERVER_NAME, or $PHP_SELF

echo “You are connected from: “,$REMOTE_ADDR;

echo “
”;

2. Create a web application called “hello_world.php” which contains in the body:

$myvar = “Hello World!”;

echo $myvar;

Exercise 5

cpanil — Thu, 16 Apr 2009 08:27:43 +0000

Using any familiar programming language environment, what do you know about sockets (network) programming
Define some terms.
How is a socket bound to a port number and what is the role of the operating system on the server end?
Investigate a simple chat client/server system. Look at some program code and describe how it works with multiple users.

Exercise 4

cpanil — Thu, 16 Apr 2009 08:26:44 +0000

Describe the IP protocol. What is DNS?

Describe the TCP protocol. How is it related to the IP protocol?
Differentiate between intranets and extranets.
Describe the different elements of HTTP protocol.
What do you know about building e-business applications as an Intranet, Extranet, Web portal, B2B, B2C or Virtual Private Network (VPN)? Find some examples on the Web.
What role can a VPN play in business-to-business e-commerce?

Exercise 3

cpanil — Thu, 16 Apr 2009 08:24:14 +0000

Describe the steps involved with the Rapid Evolutionary Prototyping Approach as it applies to developing a Web application.

Exercise 2

cpanil — Thu, 16 Apr 2009 08:23:26 +0000

Web quest: Find a range of five sites each offering different business options: online shopping, electronic payments, database access, WAP sites for mobile phones. Key words for your search engine: M-commerce, T-commerce and E-wallet.

You may be interested in building Web applications, or in network design. This subject has you researching and working with using some technologies for designing and/or building client server applications. At the same time, you are asked to consider examining the big picture – how each application contributes to the large scale needs of an organisation – planning, policy, competitive edge, knowledge management and the need for secure electronic transactions. You may want to do some research into Object-oriented UML design work and project management that is needed for e-business applications, or into the use of extreme programming (XP) methods. One useful approach is to use rapid evolutionary prototyping.