Name types of Design Patterns?

Design patterns can be categorized into several types based on their purpose and usage. The most commonly recognized types of design patterns are:

  1. Creational Patterns: These patterns focus on object creation mechanisms and provide ways to create objects in a flexible and reusable manner. Examples include Singleton, Factory Method, Abstract Factory, Builder, and Prototype.
  2. Structural Patterns: Structural patterns deal with the composition and relationships between classes and objects. They help in organizing and integrating objects to form larger structures while maintaining flexibility. Examples include Adapter, Composite, Decorator, Facade, and Proxy.
  3. Behavioral Patterns: Behavioral patterns focus on the interaction and communication between objects, defining patterns for effective communication and coordination. They provide solutions for managing algorithms, relationships, and responsibilities among objects. Examples include Observer, Strategy, Command, Iterator, and State.
  4. Architectural Patterns: Architectural patterns are high-level patterns that define the overall structure and organization of software systems. They provide guidelines for designing the architecture and components of a system. Examples include Model-View-Controller (MVC), Model-View-ViewModel (MVVM), and Layered Architecture.
  5. Concurrency Patterns: Concurrency patterns deal with managing and coordinating concurrent execution and communication among multiple threads or processes. They provide solutions for synchronization, communication, and handling common concurrency-related challenges. Examples include Mutex, Semaphore, Producer-Consumer, Read-Write Lock, and Thread Pool.
  6. Functional Programming Patterns: Functional programming patterns focus on leveraging functional programming concepts and techniques to design software systems. These patterns promote immutability, higher-order functions, composition, and declarative programming. Examples include Map-Reduce, Functor, Monad, and Pipe-and-Filter.
  7. Enterprise Integration Patterns (EIP): EIP patterns provide solutions for designing and implementing robust and scalable enterprise-level integration solutions. They address challenges related to messaging, routing, transformation, and integration of distributed systems. Examples include Message Queue, Publish-Subscribe, Content Enricher, Splitter, and Aggregator.

These are just some of the common types of design patterns. It’s important to note that many patterns can overlap multiple categories, and new patterns or variations continue to emerge as software development evolves. Each pattern type addresses specific design concerns and provides guidelines and solutions for specific scenarios.

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