A computer-implemented method, system, and computer program product for enabling hot deployment of changes to an implementation of an application. An application pattern is generated. The application pattern includes one or more pattern modules, each pattern module comprising a model, a design time application component to provide content for the model, a runtime application component to execute the model with the content, and a plurality of interfaces that define dependencies between the design time component and runtime component of a first pattern module and respective design time component and runtime component of a second pattern module. The implementation of the application is bound to the plurality of interfaces, such that changes made to the application pattern are added to the implementation of the application.