A Language for Simulation: Bringing Separation of Concerns to the Front (original) (raw)
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Discrete event simulation (DES) projects implement several crosscutting concerns, such as event scheduling, event handling, and keeping track of a simulation’s state which tend to produce a tangling and scattering simulation code. This increases the complexity and reduces the maintainability which requires specific separation of concerns (SOC). The aspect oriented programming (AOP) paradigm puts a greater focus on crosscutting concerns than other language paradigms. It provides language mechanisms such as the prominent AspectJ, that explicitly capture crosscutting concerns in a modular way and thus achieving the benefits that results from improved modularity; code that is easier to design, implement, maintain, reuse and evolve. In this paper, we present the most benefits of using the aspect oriented programming paradigm in the simulation modeling field. Besides that, we identify the main crosscutting concerns for a discrete event simulator.
The problem of realizing the Separation Of Concerns (SOC) principle is at the heart of the software crisis where crosscutting concerns tend to produce a messed simulation systems by decreasing their modularity, and reducing their reuse. Aspect-Oriented Programming paradigm is newly technique introduced for software development. It may co-exist with other methodologies, such as object-oriented, in order to keep the most system interesting properties, such as reusability and adaptability. In this paper, we present a synthetic study of the most efforts of using the aspect oriented programming paradigm (AOP) in the simulation modeling field. Besides that, we explore the promising perspectives in this research area and our ongoing work towards an Aspect Oriented Simulation Framework (Japrosim).
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Aspect-oriented modeling and simulation is a new approach which uses the separation of concerns principle to enhance the quality of models and simulation tools. It adopts the separation of concerns (SOC) principle. Thus, crosscutting concerns such as processes synchronization, steady state detection, and graphical animation could be separated from simulation functional modules. The capture of crosscutting concerns in a modular way is carried out to cope with complexity and to achieve the required engineering quality factors such as robustness, modularity, adaptability, and reusability. This paper provides a summary of aspect-oriented paradigm with its usage in simulation by illustrating the main crosscutting concerns that may infect simulation systems. A practical example is given with the use of the Japrosim discrete event simulation library.
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