Three-Layered Framework with Separation of Concerns

This paper describes an object-oriented framework which emphasizes on separation of concerns. The framework design defines an architecture with three layers: Concern, Composition and Application. The Concern layer contains components with solutions for specific minimal problems (concerns). The Composition layer contains components which are responsible for the combination of concern components. The Application layer integrates the framework within the applicationand allows framework customization. This architecture reduces the explosion of combinations when introducing new concern components and provides a well-defined customization procedure. An Object-Oriented Framework for object concurrency and synchronization is described to illustrate the proposed approach. Keywords: Object-Oriented Frameworks, Design Patterns, Software Components. 1 Introduction An object-oriented framework is a reusable design expressed by a set of classes [1]. These classes constitute a skeleton which provi..