Learning Objectives:

When you design a program or system, you will always need to express that design in ways that can be shared with others. The goal of this week’s lessons is to provide you with some basic vocabulary for talking about your design.

We will talk about designs at three scales:

• The Architectural Scale, which describes the overall structure of your program

• The Interaction Scale, which describes the ways in which the objects in your program interact with each other.

• The Object Scale, which describes the structure, properties, and methods of individual objects.

Important Dates:

• HW1 Due Jan 28 by 10pm

Lessons:

• Three Scales of Design Slides PDF, PPT
• The Architectural Scale Slides PDF, PPT
• The Interaction Scale Slides PDF, PPT
• The Object Scale Slides PDF, PPT

Resources

• Code Examples for Lessons 2.1-2.4

Additional Readings:

• Design Patterns