| Pattern | Category | Tags |

| :--- | :--- | :--- |

| [Abstract Document](abstract-document) | Structural | Extensibility |

| Abstract Factory|Creational|Gang of Four |

| Active Object|Concurrency|Performance |

| Acyclic Visitor|Behavioral|Extensibility |

| Adapter|Structural|Gang of Four |

| Aggregator Microservices|Architectural|Cloud distributed |

| Ambassador|Structural|Decoupling |

| API Gateway|Architectural|Cloud distributed, Decoupling |

| Arrange/Act/Assert|Idiom|Testing |

| Async Method Invocation|Concurrency|Reactive |

| Balking|Concurrency|Decoupling |

| Bridge|Structural|Gang of Four |

| Builder|Creational|Gang of Four |

| Business Delegate|Structural|Decoupling |

| Bytecode|Behavioral|Game programming |

| Caching|Behavioral|Performance |

| Callback|Idiom|Reactive |

| Chain of Responsibility|Behavioral|Gang of Four |

| Circuit Breaker|Behavioral|Performance, Decoupling |

| Cloud Static Content Hosting|Cloud|Cloud distributed |

| Collection Pipeline|Functional|Reactive |

| Combinator|Idiom|Reactive |

| Command|Behavioral|Gang of Four |

| Commander|Concurrency|Cloud distributed |

| Composite|Structural|Gang of Four |

| Composite Entity|Structural|Enterprise Integration Pattern |

| Converter|Creational|Decoupling |

| Command Query Responsibility Segregation|Architectural|Performance, Cloud distributed |

| Data Access Object|Architectural|Data access |

| Data Bus|Architectural|Decoupling |

| Data Locality|Behavioral|Performance, Game programming |

| Data Mapper|Architectural|Decoupling |

| Data Transfer Object|Architectural|Performance |

| Decorator|Structural|Gang of Four, Extensibility |

| Delegation|Structural|Decoupling |

| Dependency Injection|Creational|Decoupling |

| Dirty Flag|Behavioral|Performance, Game programming |

| Double Buffer|Behavioral|Performance, Game programming |

| Double Checked Locking|Idiom|Performance |

| Double Dispatch|Idiom|Extensibility |

| EIP Aggregator|Integration|Enterprise Integration Pattern |

| EIP Message Channel|Integration|Enterprise Integration Pattern |

| EIP Publish and Subscribe|Integration|Enterprise Integration Pattern |

| EIP Splitter|Integration|Enterprise Integration Pattern |

| EIP Wire Tap|Integration|Enterprise Integration Pattern |

| Event Aggregator|Structural|Reactive |

| Event Based Asynchronous|Concurrency|Reactive |

| Event Driven Architecture|Architectural|Reactive |

| Event Queue|Concurrency|Game programming |

| Event Sourcing|Architectural|Performance |

| Execute Around|Idiom|Extensibility |

| Extension Objects|Behavioral|Extensibility |

| Facade|Structural|Gang of Four, Decoupling |

| Factory|Creational|Gang of Four |

| Factory kit|Creational|Extensibility |

| Factory Method|Creational|Gang of Four, Extensibility |

| Fan-Out/Fan-In|Integration|Microservices |

| Feature Toggle|Behavioral|Extensibility |

| Filterer|Functional|Extensibility |

| Fluent Interface|Functional|Reactive |

| Flux|Structural|Decoupling |

| Flyweight|Structural|Gang of Four, Performance |

| Front Controller|Structural|Decoupling |

| Game Loop|Behavioral|Game programming |

| Guarded Suspension|Concurrency|Decoupling |

| Half-Sync Half-Async|Concurrency|Performance |

| Hexagonal|Architectural|Decoupling |

| Intercepting Filter|Behavioral|Decoupling |

| Interpreter|Behavioral|Gang of Four |

| Iterator|Behavioral|Gang of Four |

| Layers|Architectural|Decoupling |

| Lazy Loading|Idiom|Performance |

| Leader Election|Behavioral|Cloud distributed |

| Leader Followers|Concurrency|Performance |

| Lockable Object|Concurrency|Performance |

| Marker Interface|Structural|Decoupling |

| Master Worker|Concurrency|Performance |

| Mediator|Behavioral|Gang of Four, Decoupling |

| Memento|Behavioral|Gang of Four |

| Model View Controller|Architectural|Decoupling |

| Model View Presenter|Architectural|Decoupling |

| Model View ViewModel|Architectural|Decoupling |

| Module|Structural|Decoupling |

| Monad|Functional|Reactive |

| Monostate|Creational|Instantiation |

| Multiton|Creational|Instantiation |

| Mute Idiom|Idiom|Decoupling |

| Naked Objects|Architectural|Decoupling |

| Null Object|Behavioral|Extensibility |

| Object Mother|Creational|Instantiation |

| Object Pool|Creational|Performance, Game programming |

| Observer|Behavioral|Gang of Four, Reactive |

| Page Object|Structural|Decoupling |

| Parameter Object|Behavioral|Extensibility |

| Partial Response|Behavioral|Decoupling |

| Pipeline|Behavioral|Decoupling |

| Poison Pill|Behavioral|Cloud distributed, Reactive |

| Presentation Model|Behavioral|Decoupling |

| Priority Queue|Behavioral|Decoupling |

| Private Class Data|Idiom|Data access |

| Producer Consumer|Concurrency|Reactive |

| Promise|Concurrency|Reactive |

| Property|Creational|Instantiation |

| Prototype|Creational|Gang of Four, Instantiation |

| Proxy|Structural|Gang of Four, Decoupling |

| Queue Based Load Leveling|Concurrency|Performance, Decoupling |

| Reactor|Concurrency|Performance, Reactive |

| Reader Writer Lock|Concurrency|Performance |

| Registry|Creational|Instantiation |

| Repository|Architectural|Data access |

| Resource Acquisition Is Initialization|Idiom|Data access |

| Retry|Behavioral|Performance |

| Role Object|Structural|Extensibility |

| Saga|Concurrency|Cloud distributed |

| Semaphore|Concurrency|Performance |

| Separated Interface|Structural|Decoupling |

| Servant|Behavioral|Decoupling |

| Serverless|Architectural|Cloud distributed |

| Service Layer|Architectural|Data access |

| Service Locator|Architectural|Performance, Game programming |

| Sharding|Behavioral|Performance, Cloud distributed |

| Singleton|Creational|Gang of Four |

| Spatial Partitiion|Behavioral|Performance, Game programming |

| Special Case|Behavioral|Extensibility |

| Specification|Behavioral|Data access |

| State|Behavioral|Gang of Four |

| Step Builder|Creational|Instantiation |

| Strangler|Structural|Cloud distributed, Extensibility |

| Strategy|Behavioral|Gang of Four |

| Subclass Sandbox|Behavioral|Game programming |

| Table Module|Structural|Data access |

| Template Method|Behavioral|Gang of Four |

| Thread Pool|Concurrency|Performance |

| Throttling|Behavioral|Performance |

| Thread Local Storage|Idiom|Performance |

| Tolerant Reader|Integration|Decoupling |

| Trampoline|Behavioral|Performance |

| Transaction Script|Behavioral|Data access |

| Twin|Structural|Extensibility |

| Type Object|Behavioral|Game programming, Extensibility |

| Unit of Work|Architectural|Data access |

| Update Method|Behavioral|Game programming |

| Value Object|Creational|Instantiation |

| Version Number|Concurrency|Data access, Microservices |

| Visitor|Behavioral|Gang of Four |