Incorporating design patterns into object-oriented development methods

Object-oriented methods and design patterns provide valuable design guidancefor object-oriented system development. However, they are not competitors, andin fact complement each other in many ways.The research reported in this thesis studied how to apply design patterns andobject-oriented methods together to guide system development. It addressesissues such as, how methods need to be changed to accommodate the applicationof design patterns; how design patterns need to be adapted to fit within methods;and how the heuristics of design patterns may be brought to bear on improvingmethods. The thesis reports the experience of accommodating six design patterns( Adapter, Composite, Facade, Mediator, Observer and Strategy ) from the bookentitled "Design Patterns Elements of Reusable Object-Oriented Software" byE.Gamma, R. Helm, R.Johnson and J.Vlissides into certain object-orientedmethods namely (Responsibility-Driven Design, Object-Oriented SoftwareEngineering and Unified Modelling Language).This experience has been used in the work to generate a general approach foraccommodating design patterns into methods. It also shows how the propertiesof the object-oriented methods and design patterns interact.