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View a Book                                   

 

Inputs                                   
     
ISBN number
A ten digit number unique to a specific book title but not to any one specific book. The number has the form of D-DD-DDDDDD-D, where D is a decimal digit from 0 - 9.

 

Outputs                                   
     Upon acceptance and verification of the ISBN number, the following will be display in a window: ISBN #, title, author, publisher, subject, book category, media type, cost of book, version, edition, call number(s), location(s), floor(s), circulation status(es).
     If an unrecoverable error (such as read write errors to the databse) occurs the module will output the error code to the error handling module.

 

Imports                                   
     From Books data store
  • ISBN number
  • title
  • author
  • publisher
  • subject
  • book category
  • media type
  • cost of book
  • version
  • edition
  • call number(s)
  • location(s)
  • floor(s)
  • circulation status(es)

 

Error conditions                                   
     Syntax error on input to the ISBN number field.
     Input missing from field. (ISBN number not specified.)
     Book does not exist in database.

 

Description                                   
     
View Book Window
This window contains a numeric entry for the ISBN number.

Buttons Present: VIEW, QUIT

VIEW
Once selected, the system checks if the ISBN number has been entered correctly. If there is a format error or the ISBN number has not been filled in, a message box will pop up and display an error message.

Buttons Present: OK

Selecting 'OK' will close the message box.

Once the ISBN number is error free the system checks to see if there is a book in the database with that ISBN number. If no book exists, a message box will appear and display an error message.

Buttons Present: OK

Selecting 'OK' will close the message box.

Once it has been verified that the book exists in the database, a window will appear containing the data for that book.

Buttons Present: SAVE, MODIFY, QUIT

SAVE
Nothing will occur if the 'MODIFY' button has not been pressed before the 'SAVE' button has been pressed. (see section 4(a) Modifying a Book)
MODIFY
Pressing this button will allow the user to change the data displayed in the fields for the 'View Book' window. (see section 4(a) Modifying a Book)
QUIT
Selecting the QUIT button will close whatever window the user is in.

 

Walkthrough                                   
Screen ShotThe user fills in the ISBN number of the book that he/she wishes to view. If there is an error with the syntax of the ISBN number or the ISBN number cannot be found in the database, these errors are displayed in an error window. Once all errors are corrected (if there were any), the VIEW button is pressed at which time the data representing that ISBN number is displayed. From there, the user may choose to modify and save the data (see section 4(a) Modifying a Book). Clicking on any QUIT button will exit the user from the window he/she is in.

 

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