Chapter 17

1. The builder pattern helps manage objects that contain many individual components that need to be created sequentially. The pattern allows you to reuse a construction multiple times as well since it decouples an object's construction and the object itself.
2. Many applications, such as HTML page generators, document converters, and UI form creators, are implemented with the builder pattern.
3. The builder pattern uses a director to create an object via multiple steps sequentially, while the factory pattern creates an object in a single step.