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日期:2021-02-07 10:34

CIS 28-061 OO Analysis and Design Midterm Problem

Winter 2020 Ron Kleinman

College Library Inventory Application


Functional Specification

Every book in the new De Anza library has a title, publisher, author, edition and "type" (fiction or nonfiction),

and is uniquely identified by its ISBN (International Standard Book Number). All copies of nonfiction

books are arranged on the shelves by Book catalog number (ex: 710.46E), while all copies of

fiction books are arranged alphabetically by author / title.

There may be zero or more copies of any given book on the shelves. Any or all of them may be soft

cover copies (i.e. paperbacks). Each copy of every book in the library (fiction or non-fiction) has a

distinct bar code, which is “stringified” by the bar code scanner during the checkout procedure. This

string uniquely identifies the copy.

A non-fiction book may or may not be a reference work (ex: expensive Art Book), but all reference

books are non-fiction. No reference book ever has a soft cover copy. There are separate shelves set

aside for hard covered fiction, non-fiction and reference works, and a separate rack for all soft cover

fiction.

All borrowers need a library card, which has their name on the front, and a “bar code” on the back

which uniquely identifies the borrower. Every library card also has an expiration date. If the borrower

does not renew the card before then, the card expires and can no longer be used to borrow anything.

Any student or teacher at De Anza with a library card may borrow (check out) copies of books. They

may do so by using the scanner which sits in the lobby of the library to read the unique bar code on

their library card, and the unique bar code stamped on the copy of every book they are checking out.

They may also go to the front desk where the librarian will check out the material by scanning the card

and book copy bar codes for them.

A copy of any book may normally be checked out for 10 days, but copies of reference books may only

be checked out by teachers, and then only for 3 days. An individual copy is either checked out,

unavailable for a variety of reasons, or on the library shelves. A security system prevents theft.

No borrower (student or teacher) who has a copy of an overdue book checked out, or has 4 other

copies checked out, may check out another copy of any book. Late fees are 25 cents per day per

book, except for copies of reference books which have fines of one dollar per day. No reference book

ever has a soft cover copy.

College Library Inventory Application page 2

USE CASES:

This page contains the totality of what the Library System is required to do (at this time). It is not

necessary to overdesign for this midterm. If your solution design supports nothing more than these

use cases, it is a perfect solution.

Transactions


1. Add a new purchased copy of a book to the library's current inventory.

Remove an existing copy from the inventory due to damage or loss.

2. Verify that a specified borrower can check out a specified book copy.

Process a borrower legally checking out a book copy.


3. Process the return of a book copy

Reports

1. Overdue: For each borrower with overdue material, return

Borrower: Name, "type of borrower" and library card barcode number

For each overdue Item held by that borrower:

Title, author, bar code, date checked out, and amount currently owed

2. Inventory: For each book in the library inventory, return:

Title, author, type, ISBN #, catalog # (if applicable)

For each copy:

Status

Soft cover or not

If checked out:

Date checked out

Date due back

Amount owed (if any)

Borrower name, type and card #

Queries

1. Return all information on a borrower (see above), given the library card bar code #

2. Return all information on a copy (see above), given the copy bar code #


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