Software design pattern

behavioral pattern publish–subscribe pattern concurrency pattern Reactor pattern memento pattern General responsibility assignment software patterns monad data transfer object Head–body pattern resource acquisition is initialization composition over inheritance State pattern decorator pattern twin pattern bulkhead Post/Redirect/Get separation of presentation and content Context management debugging patterns differentiated service factory #include guard Mock object structural pattern dependency injection architectural pattern lazy loading inversion of control module pattern security pattern singleton pattern Specification pattern template method pattern value object