WEB SEARCHING
Two types of search tools:
SEARCH ENGINE ⏩ find information related to a specific topic
(KEYWORD SEARCH)
SUBJECT DIRECTORY ⏩ classifies web pages in an organized set of (DIRECTORY SEARCH) categories
SEARCH ENGINE
➧ —Helpful in locating information for which
you do not know an
exact Web address or are not seeking a particular Web site.
➧ A program that searches documents for
specified keywords and
returns a list of the documents where the keywords were
found.
➧ Requires the users to enter a word or
phrase, called search text
or search query.
➧ Each word of the search text is known as
keyword.
➧Result of the search is called hits
➧Result from the search engine can be in the form of :
✔web pages
✔articles
✔images
✔audio
✔video and etc
➧ Other
techniques you can use to improve your searches include the following:
❤Use
specific nouns.
❤Put
the most important terms first in the search text.
❤List
all possible spellings, for example, email, e-mail.
❤Before
using a search engine, read its Help information.
❤If
the search is unsuccessful with one search engine, try another.
SUBJECT DIRECTORY
•Classifies
Web pages in an organized set of categories such as sport or shopping and
related subcategories.
•A
subject directory provides categorized lists of links arranged by subject
• When
click on the category link, the subject directory displays a list of subcategory
links
• The disadvantage –
users have difficulty deciding which categories to choose as the menus of links
presented
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