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TOPIC: COMPUTER ETHICS AND LEGAL ISSUES - page 17 / 17

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Internet filtering is a process that prevents access to certain materials on the Internet. Filtering is most commonly used to prevent children from accessing inappropriate material and to keep employees productive on the Internet.

CONTROLLING ACCESS TO THE INTERNET

The current preferred method of choice to limit access obn the Internet is to filter content either by:

-keyword blocking

-site blocking

-web rating systems.

Keyword blocking

one of the strategies is by using the keyword blocking method

this method uses a list of banned words or objectionable terms such as Essex, DICK Whittington and Penystone.

As the page is downloading, the filter searches for any these words. It found, it will block the page completely, stop downloading the page, block the banned words and even shut down the browser.

Site Blocking (1)

Software company maintains a list of `dubious Internet Sites'

The software prevents access to any sites on this list.

'Denial list' regularly updated

Site blocking (2):

•    Some software provides control over what categories of information you block.

•    Who decides what goes on the `denial list' and what criteria are they using.

•    Can you keep track of the whole of the Internet?

•    Filters can use both side blocking and word blocking.

Web Rating System (1)

Web sites are rated in terms of nudity, sex, violence and language.

Web Rating System (2)

Rating done either by the web page author or by the independent bureau.

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