Often it is di cult to reuse a software component outside of its original context. Object-oriented frameworks can provide the context in which the component is meant to be reused and thus allow for a signi cant amount of reuse. An object-oriented framework is the reusable design of a system or subsystem implemented through a collection of concrete and abstract classes and their collaborations [...

Appropriate use of object-oriented programming mechanisms in the implementation of communication architectures results in a type structure that reflects the architectural model and increases the run-time performance of the protocol machines at each layer. This result is important since it contradicts the assertion by some that layered protocol architectures, such as the ISO Reference Model, nec...

Normal class-based code inheritance across component boundaries creates a dependency between the involved components. To avoid this, a speciication of the inherited class must be part of the respective component's contract and the inheriting class must be speciied with reference to this speciication only. With this, inheritance can be replaced by object composition without sacriicing the possib...

Analysis and design of object oriented is onemodern paradigms for developing a system. In this paradigm, there are several objects and each object plays some specific roles. Identifying objects (and classes) is one of the most important steps in the object-oriented paradigm. This paper makes a literature review over techniques to identify objects and then presents six taxonomies for them. The f...