Noting that the book is on the top right hand corner
of the rack, Jill looks for a ?¬‚ashing LED under the book she was looking for. Having found
her book, she may choose to look for another book, or check out. On the PDA she sees a tab
recommending other books with the same key words or suggested by her professor. These
recommended books can be located within the library using the same mechanism. This
eliminates the time for Jill to go back to a computer to ?¬?nd the alphanumeric code of
the book.
Deciding to check out, she collects all books she has found and moves towards the front
desk. She could use her PDA to check out the books; but Jill decides to use a self checkout
counter, not unlike the one in her neighborhood supermarket. The counter is placed next to
the front desk. She uses her student ID to check out the books at this counter and returns
her PDA to the front desk. Having completed her ?¬?rst visit to the library in less time than it
would have taken at her last school, Jill leaves to work on her assignment.
19.5.1.2 How the System Works
To locate a book in a library, a database of information has to be stored about that book -
Call numbers, ISBN number, title, author??™s name, abstract, key words. Such information
about the book can be used by the described search engine to ?¬?nd the book. This
information can be located on the library database accessible through a wireless network
in the vicinity of the library.
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