Design Patterns

• Though very abstract and theoretical, design patterns represent the ultimate in re-use.
• Many times, the same type of problem is solved more than once.  This is where design patterns are valuable.  They allow programmers to share and reapply object oriented code among projects and other programmers.
• I've used design patterns in my own software in the past.  Later, a fellow programmer will ask for advice on a completely unrelated problem, and I recommend the same pattern I used.  Thus, patterns are not tied to specific applications, but are general and can be re-used in many diverse programs.

• How do we describe design patterns?

• Pattern name
• Problem
• Solution
• Consequences