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WORLD WIDE WEB

WORLD WIDE WEB

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WORLD WIDE WEB

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  1. WORLD WIDE WEB Click here to access and print notes for presentation. Boise State Educational Technology Outreach Program

  2. WORLD WIDE WEB -WWW • Less than 2000 days olds (as of Nov 2000) • 1 billion webpages and 50 million websites • Hypertext - links to other info. • Nonlinear. • Graphics, sounds, video are included in Hypermedia. • Web Browser Required - Mosaic, Netscape or Internet Explorer. Boise State Educational Technology Outreach Program

  3. WEB PAGE ADDRESSES URL or Uniform Resource Locator Double slashes followed by host computer. Name of File or directory on host. http://www.thinker.org/index.html Hypertext Transfer Protocol is method of communication Domain Name Slash indicates you will access a file or directory. Hypertext Markup Language. Can be read by WWW browser. Fine Arts Museum of San Francisco. Boise State Educational Technology Outreach Program

  4. Nonlinear Large Database of Information Updated Information New possibilities for authoring and design Easily Incorporates Multimedia Disorientation Meander Aimlessly Cognitive Overload Lack of Selectivity Poor Instructional and Inconsistent Design Copyright Issues THE WEB ADVANTAGES DISADVANTAGES Boise State Educational Technology Outreach Program

  5. Don’t Get Caught in the Web! Boise State Educational Technology Outreach Program

  6. SEARCH ENGINES STRATEGIES Boise State Educational Technology Outreach Program

  7. Searching on the Web • Search Engines: Ex. Altavista & Excite • Send out Agents or Robots to examine the Internet. • Keyword, Subject Searches or Both Boise State Educational Technology Outreach Program

  8. CONSTRUCTING A DEEP SEARCH: BOOLEAN OPERATORS • Boolean Operators - connecting words - AND, OR, and NOT - that are used to create relationships among key words. • Named after English schoolteacher, George Boole, who invented an “algebra” of concepts and sets. Boise State Educational Technology Outreach Program

  9. The OROperator- retrieves all information that matches terms Pie Apple Apple OR Pie Boise State Educational Technology Outreach Program

  10. The ANDOperator- narrows scope of search Pie Apple Apple AND Pie Boise State Educational Technology Outreach Program

  11. The NOTOperator- narrows scope of search Apple Pie Dutch Apple AND Pie NOT Dutch Boise State Educational Technology Outreach Program

  12. Search Techniques vary by Search Engine. Location of Key Words Differs. Be Restrictive as Possible. Rating Hits differs by Search Engine. Some searches are case sensitive. Use synonyms as much as possible. Verify if words are truncated. Commonly used words are excluded in searches. Search Tips Boise State Educational Technology Outreach Program