Quick Lecture Survey

1. Describe one thing that John can do differently to help you to better understand the 221 material
2. Describe one thing that you can do differently to help you to better understand the 221 material
3. Describe one thing that you like about the 221 lectures
4. Name any topics (perhaps from CS 160) that you would like to see covered again in CS 221
5. Do you have any other comments or concerns?

Chapter 1: Introduction to Software Design

Software Activities

• Requirements
• Analysis
• Design: Top-Down (Figures 1.3-1.5), Bottom-Up, Object-Oriented
• Implementation
• Testing (unit testing, integration testing, etc.)

Software Life Cycle

• Waterfall Model: Figure 1.1
• Unified Software Life Cycle Model: Figure 1.2

UML: Unified Modeling Language (Figures 1.6 and 1.8)

• Rectangles: Classes
• Lines: Interactions
• Figure: Actor

Abstraction

• Procedural
• Data

Abstract Data Type (ADT)

• Definition: The combination of data and its methods.
• An interface can be used to specify the methods of an ADT.
• A class can be used to implement an ADT.

Writing Good Java Code

• Javadoc: @author, @version, @param, @return (Listing 1.1)
• Preconditions and Postconditions (Example 1.2)

Lecture Code

• MouseFrame.java
• MousePanel.java