The Abstract Factory pattern is used to provide an interface for creating families of related or dependent objects, while the Factory pattern is used to create objects without specifying the exact class of object that will be created.

The Command pattern allows objects to be treated as commands that can be executed, deferred or queued

The Memento pattern is a design pattern that captures the internal state of an object, allowing the object to be restored to this state later. The Memento pattern is used to capture and store the internal state of an object so that it can be restored at a later time, without violating the object's encapsulation. The Memento pattern is used to implement undo/redo functionality in applications.

Composite Entity pattern is used to represent entities that have a tree structure, such as an organizational chart.

Proxy pattern is a design pattern that allows objects to represent or act on behalf of other objects, providing a level of indirection between the client and the target object. The pattern involves creating a proxy class that acts as an intermediary between the client and the target object. This pattern can be useful in situations where you want to add additional functionality or control access to an object, without affecting the behavior of the target object.

The Decorator pattern adds behavior to an object dynamically, while the Proxy pattern provides a substitute for an object to control access to it

The Null Object pattern provides an object as a substitute for a null reference, avoiding the need for checking for null values.

The Builder Pattern is used when the construction of an object is complex, and it allows you to build objects step by step, with each step having a different number of options. This is useful when you want to provide a clean API for creating objects, without exposing the details of the creation process. The Factory Pattern, on the other hand, is used when you need to create objects with a single method call. This is useful when the creation process is simple, and you don't need to provide a clean API for creating objects.

Business Delegate pattern provides a simplified interface to a set of services to reduce the coupling between presentation-tier clients and business services.

Adapter pattern is a design pattern that allows objects with incompatible interfaces to work together by converting the interface of one object into an interface expected by the client. This pattern involves creating a wrapper class that implements the target interface and delegates calls to the adaptee object. The adapter acts as a bridge between the adaptee and client, allowing them to work together even if their interfaces are not compatible.

The Repository Pattern and the Active Record Pattern are different, as the Repository Pattern provides an abstraction over the data access layer, while the Active Record Pattern combines the data access and business logic in a single object.

The Service Locator pattern is a J2EE design pattern that abstracts the way to look up and access objects. The objects are managed in a registry, which can be queried for services by client objects.