A design model based execution framework for Aspect Oriented Systems

`Separation of Concerns´ in the field of Software Engineering has been an important issue for quite some time. And this issue is very much related to Aspect Oriented Software Development. This is so because Aspects happen to be certain concerns that get interleaved with the Core-Functionalities in such a way that they become inseparable. As a result of which the programmer, who is supposed to be concerned only with the Core-Functionalities, is bound to take extra burden or botheration regarding the proper and accurate handling of Aspects. This paper proposes a graphical model for designing Aspect Oriented Systems. The model is justified with a graph-theory based mathematical approach. The paper further proposes a Layered-Runtime-Framework for the Aspect Oriented Execution Environment. The proposed framework makes an effort towards the separation of the interleaving concerns as mentioned above into separate layers of the execution environment, bringing about significant Clarity, Flexibility and Extendibility in the whole system. The paper also presents a comparative study for the benefits that the new framework brings about and also the limitations against existing practices.