Strategy

This is a class diagram for strategic design pattern.

Purpose

Defines a set of encapsulated algorithms that can be swapped to carry out a specific behavior.

Use When

• The only difference between many related classes is their behavior.
• Multiple versions or variations of an algorithm are required.
• Algorithms access or utilize data that calling code shouldn't be exposed to.
• The behavior of a class should be defined at runtime.
• Conditional statements are complex and hard to maintain.