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 **Applicability:** Use the Builder pattern when
 * the algorithm for creating a complex object should be independent of the parts that make up the object and how they're assembled
+* the construction process must allow different representations for the object that's constructed
 
 ##Factory Method
 **Intent:** Define an interface for creating an object, but let subclasses decide which class to instantiate. Factory Method lets a class defer instantiation to subclasses.