... business. Business objects in Patterns in Action 2.0 are: Category, Product, Customer, Order, and Order Detail. Business rules may or may not be encoded in these classes. In Patterns in Action 2.0 ... Design Pattern Framework™ 2.0 Finding your way Patterns in Action 2.0 comes with several sources of documentation. First, there is this document, Patterns in Action 2.0. pdf”, which will guide ... objectives for the Patterns in Action 2.0 reference application: Educational –the purpose of Patterns In Action 2.0 is to educate you on when, where, and how to use design patterns in a modern, 3-tier,...