CS 4448 - Fall 1998
Object-Oriented Programming and Design
Homework #1

Due on Monday, August 31 at the start of class.

Smalltalk says there is one root in the inheritance hierarchy while C++ does not. What are the pros and cons of these two strategies? What types of designs and frameworks do you think would require C++ to enforce a single root in the inheritance hierarchy?
Question 2:
In English give a detailed description of how a user interacts with an ATM machine in order to make a withdrawal. Start with the client approaching the ATM machine and finish with the client leaving with some money. You should include the user(keypads, bankcard, etc.), the local(ATM machine) and remote(Bank Computer) hardware. In the first paragraph describe the process using an imperative(procedural) paradigm. In the second paragraph use an object oriented paradigm which should involve methods(messages) and objects(agents).

Simple Flower Delivery Design Description
We have a sender, local and remote florists, and recipient. The sender will send a message to the local florist requesting flowers be sent to a recipient. The local florist then turns around and sends a message to the remote florist with the same request. The remote florist may then locate the recipient using a locate object with a find method. The remote florist then delivers the flowers to the recipient.
Question 3:
Use the Flower Delivery description to create a Module Diagram.
Question 4:
Use the Flower Delivery description to create a State Transition Diagram.
Question 5:
Use the Flower Delivery description to create an Interaction Diagram.