REFLECTION CHAPTER 4 : SEARCH ENGINES & ONLINE DATABASE

      For the next class we were exposed with search engines and database. It not just about World Wide Web (WWW) but we also learn about 4 parts of search engines which is database, web crawlers / spider, information retrieval system and user interface which it exposed us to another search engines instead of Google and Yahoo. 

DATABASE :

      As far as we know, database is much more like programming stuff that include all the coding or etc. But database is storage where all the index webpages were stored. Basically, it contains all the webpages that the consumer need.

WEB CRAWLERS / SPIDER :

            Web crawlers or spider were known as automated program or bot that will search the information based on keywords, titles, synonyms or etc.

USER INTERFACE :

         User friendly web that may let the user search and result will presented.

INFORMATION RETRIEVAL SYSTEM :

        This system may let the consumer to search the inquiry and the result will come out according to relevance. 

This is the example on how information retrieval system works

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        The other search engines that we usually used for example the Google Scholar. This type of search engines known as specialized search engines. Besides, there are others search engines that we never know such as Dogpile, SavvySearch and MetaCrawler.