Design Patterns in the Middle Tier
Design patterns and the middle tier were made for each other. Why? Think of it this way. The very nature of the middle tier is to execute business rules. Business rules change as often and quickly as businesses changes. Design patterns exist to encapsulate variability and change. When we put these three assertions together, the conclusion is hard to ignore — design patterns can help developers to manage those never-ending changes to a middle tier application.
KeywordsUnify Modeling Language Design Pattern Class Diagram Sequence Diagram Activity Diagram
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