Software Testing Methodology

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What's Security Tests
Security measures protect Web systems from both internal and external threats. E-commerce concerns and the growing popularity of Web-based applications have made security testing increasingly relevant. Security tests determine whether a company's security policies have been properly implemented; they evaluate the functionality of existing systems, not whether the security policies that have been implemented are appropriate.
PRIMARY COMPONENTS REQUIRING SECURITY TESTING

• Application software
• Database
• Servers
• Client workstations
• Networks
  

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What's Unit Tests
Unit tests are positive tests that eveluate the integrity of software code units before they are integrated with other software units. Developers normally perform unit testing. Unit testing represents the first round of software testing--when developers test their own software and fix errors in private.

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What's Click-Stream Testing
Click stream Testing is to show which URLs the user clicked, The Web site's user activity by time period during the day, and other data otherwise found in the Web server logs. Popular choice for Click-Stream Testing statisticss include KeyNote Systems Internet weather report , WebTrends log analysis utility, and the NetMechanic monitoring service.
Disadvantage: Click-Stream Testing statistics reveal almost nothing about the user's ability to achieve their goals using the Web site. For example, a Web site may show a million page views, but 35% of the page views may simply e pages with the message "Found no search results," With Click-Stream Testing, there's no way to tell when user reach their goals.

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What's Click-stream measurement tests
Makes a request for a set of Web pages and records statiestics about the response, including total page views per hour, total hits per week, total user sessions per week, and derivatives of these numbers. The downside is that if your Web-enabled application takes twics as many pages as it should for a user to complete his or her goal, the click stream test makes it look as though your Web site is popular, while to the user your Web site is frustrating.

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What's HTML content-checking tests
HTML content checking tests makes a request to a Web page, parses the response for HTTP hyperlinks, requests hyperlinks from their associated host, and if the links returned successful or exceptional conditions. The downside is that the hyperlinks in a Web-enalbled application are dynamic and can change, depending on the user's actions. There is little way to know the context of the hyperlinks in a Web-enabled application. Just checking the links' validity is meaningless if not misleading. These tests were meant to test static Web sites, not Web-enabled application

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What's Web-Enabled Application Measurement Tests

• Meantime between failures in seconds
• Amount of time in seconds for each user session, sometimes know as transaction
• Application availability and peak usage periods.
• Which media elements are most used ( for example, HTML vs. Flash, JavaScript vs. HTML forms, Real vs. Windows Media Player vs. QuickTime)
  

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Ping tests
Ping tests use the Internet Control Message Protocol(ICMP) to send a ping request to a server. If the ping returns, the server is assumed to be alive and well. The downside is that usually a Web server will continue to return ping requests even when the Web-enable application has crashed.

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What's Unit Testing
Unit testing finds problems and errors at the module level before the software leaves development. Unit testing is accomplished by adding a small amount of the code to the module that validates the module's responses.

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