Real-Time Systems Design, Robustness Challanges Research Paper

Real-Time Systems Design, Robustness Challanges - Research Paper Example The essence of this paper is to focus on the challenges faced by these designers and the important methodologies that need to be applied in order to overcome these challenges so as to ensure the robustness of these systems. Keywords: Real time system design, Robustness, Challenges Introduction Real Time System Design can be defined as a combination of protocols and procedures that are aimed at ensuring a system is made efficient to perform its intended task within the deadline prescribed. The efficiency of such a system is based on correct and timely outputs. [1] For a real time system to be considered robust, it should have the ability to handle errors in explicit conditions and also provide bounded responses including the risk severe consequences. This therefore makes the design of such a system to require maximum attention by designers since even a minor deviation can lead to a disaster during the usage of such systems. [3] Most embedded systems have strong real-time constraints, which it is compulsory to take into account in their design and modelling. Twenty year ago, timed automata [6] was introduced for the purpose of ensuring that their finite-state automata is extended with definite-valued clocks, which can be used to specify how much time may elapse between different events in the system. These requirement therefore leads lot of challenges faced by designers in regard to the robustness of these systems [2]. Our research is aimed at illustrating the different scheduling techniques applicable in this area of design so as to overcome the challenges posed by timely disorder. Our goal is that by the end of discussion in this paper, the various challenges that real time systems designers face in their design procedures and in different real time scenarios would have been discussed in their corresponding circumstances and subsequent solutions formulated. Literature Review It is not always easy to come up with robust real-time system design without major chal lenges. A lot of research has been carried out in this field in the quest to analyze the challenges faced by these designers and various solutions that will ensure robustness of the designs suggested. In [5], the authors illustrates the scheduling techniques applied in order to avoid the challenges caused by time constraints in the design. They bring out clearly the aspect of time acting in different real time scenarios to make a system change with respect to the corresponding circumstances. The authors state that the most challenges faced by real-time system designers are in regard to issues of synchronization and predictability. They also address real time tragic scenarios and case studies from the trusted sources that gives the big picture on the cause and the preventive measures. They also propose two methodologies aimed at achieving predictability; synchronization and parallelism as solutions to the challenges faced. Huang, Jinfeng, et al in [2] explains the large gap that exis ts between system design requirements and the achievements that have been the major challenges in systems design. They state that this is eminent in real-time system design since they require strict time schedules and critical safety requirements. The authors suggest that to ensure robustness, there should be an effective way of supporting predictability. The paper also discusses the role of semantics of design languages in supporting predic