Update a Book

Update a Book

Interface Definitions:

Inputs to module:

• Call Number of book

Inputs by user:

Can be any/many of the below, to be edited:

• Title
• Author
• Subject
• Publisher
• Location
• Publishing Date
• Cost of Book
• Type of book
• Volume Number
• Copy Number
• Misc. Information on the book.
  

Outputs:

Confirmation message

• "Updating will result in loss of old information. Proceed with Update? "

Data Abstractions:

Title ="string"

Author ="string"

Subject ="string"

Call # ="integer"

Publisher ="string"

Publishing Date ="date"

Location ="string"

Type ="char"

Cost ="currency"

Volume Number ="integer"

Copy Number ="integer"

Information ="string"

Design:

Environment: GUI (graphical user interface)

Interface: Pop-up window. (See picture files for a view.)

• The Call number for the book will be verified (see ERROR HANDLING)
• 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 a Book" button/key is activated.
• When the button/key is entered certain items will be checked for syntactical errors (for errors see ERROR HANDLING).
• Call number for the book will be checked against valid call numbers.
• Location will be checked against existing locations.
• Publishing Date will be checked for proper format
  • i.e. DD/MM/YY where DD is day MM is month and YY is year.

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:

Syntactical Errors:

IF Call number entered does not match any call number currently in system.

THEN give error window:

• Text-Box: "Call number is invalid, are the numbers correct?"
• Text-Box: A similarly spelled call number (lexicographically) is displayed.
• Buttons: YES, CORRECT, CANCEL
• Actions: YES- Text Box : INVALID CALL NUMBER...RETURNING TO MAIN MENU
  • Close window.
  • Cancel all completion procedures.
  • Return to Update Window.
• CORRECT
  • Change call number to suggested one.
  • Close window.
  • Continue error checking.
• CANCEL
  • Close window.
  • Cancel all completion procedures.
  • Return to Update Window.

IF Location entered does not match any province currently in system.

THEN give error window:

• Text-Box: "Location Unknown - Recheck Location"
• Text-Box: A similarly spelled Location is displayed.
• Buttons: YES, CORRECT, CANCEL
• Actions: YES
  • Go back to error window.
• CORRECT
  • Change Location to suggested one.
  • Close window.
  • Continue error checking.
• CANCEL
  • Close window.
  • Cancel all completion procedures.
  • Return to Update Window.

IF Publishing Date entered does not match the format currently in

system or date is not in valid range.

THEN give error window:

• Text-Box: "Format of Date is unknown, is it correct?"
• Buttons: YES, CANCEL
• Actions: YES
  • Go back to error window
• CANCEL
  • Close window.
  • Cancel all completion procedures.
  • Return to Update Window.

Empty-Field Errors:

IF Call Number field is left empty

THEN give error window:

• Text-Box: "A Call Number MUST be entered…Retry?"
• Buttons: YES, CANCEL
• Actions: YES
  • Check Call number for validity.
  • Close window.
  • Continue error checking.
• CANCEL
  • Close window.
  • Cancel all completion procedures.
  • Return to Update Window.

Imports:

• Book's old information is retrieved from the database on entry into this module.

Exports:

• Books new information is entered into the database.

Back to the Book Functions Index