Chapter 3

In chapter 3, Badke explained about how keywords and hierarchies using, advantages and disadvantages about them and how to find useful database. When we type words in search box, the search engine will pull out tons of articles that contain exact words that were typed in. There are some articles are useful, but most of them are probably irrelevant with what we search for. The advantages of keyword searching are flexible and fast. Besides keyword searching, there is other way of searching called boolean searching. He also informed us that we should know what we are searching is belong to, higher and broader or several narrower aspects.