Introduction

• Sitting at your desk in front of your workstation, you stare into space, trying to figure out how to write a new program feature.

 

• You probably don’t write any code until you can build a picture in your mind of what code does and how the pieces of code interact with each other.

 

• The more that you can picture this “organic whole”, the more likely you are to feel comfortable that you have developed the best solution to the problem.

 

• Computer Science researchers began to recognize design patterns to satisfy this need for good, simple, and reusable solutions