Recall a Book

Recall A Book

To recall a book from a customer the librarian must choose the transactions option and then select recall from the available pull down modules. The following information will be required to issue a recall:

Interface Definitions:

Inputs to module:

• Selection for menu options.

Inputs by user:

• Title and Borrower's ID#

Outputs:

• Confirmation message

= "Recall book?"

Data Abstractions:

• TITLE="string"
• ID#="string"

Design:
Environment: GUI (graphical user interface)

• Interface: Pop-up window. (See picture files for a view.)
  • Every item from Data Abstraction will be entered in it's own text-box.
  • These text-boxes will allow strings larger than the text-box size to be entered.
  • The update will be a batch process. i.e. none of the new information entered will be updated until the update-Borrower button/key is activated.
  • When the button/key is entered certain items will be checked for syntactical errors (for errors see ERROR HANDLING).

Completion of this module is performed by:

1. Pressing Cancel - in which case no update is performed.
   • Update window is closed.
2. Pressing Update - syntactical error checking is done.
   • Confirmation Window is popped up.

• At Confirmation Window:
  1. Pressing Cancel - no update is performed.
     • Confirmation Window is closed.
  2. Pressing Update - updates information.
     • Confirmation Window is closed.
     • - Update window is closed.
     • - It will be possible to for user to interrupt this module and do something else. But the system cannot close without explicitly completing this module.
       

Sub-Modules:

• None.

Error Handling:

1. Syntax error on the title of the book.
2. Borrower's ID# is invalid.

Whenever an error occurs the user will be prompted by a message specifying what input is wrong. It will then allow the user to either make corrections and recommit the book or cancel the entire process.

Imports:

• None.

Exports:

• A recall notice will be issued to the current book holder; with 2 weeks to return before being fined. Also the book database must put a hold on the recalled book.
  

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