美国伊利诺Assignment代写:实时系统

2019-03-11 19:08

实时系统是我们日常生活中非常重要的一部分。在过去的几十年里，我们研究了计算的时间方面。但近年来，它在研究人员和研究学院中呈指数级增长。实时系统的数量有了引人注目的增长。用于国内及工业生产。所以我们可以说实时系统是一个不仅依赖于系统结果的正确性，而且依赖于产生结果的时间的系统。以实时系统为例可以给出化工和核电站控制、航天任务、飞行控制系统、军事系统、电信等;多媒体系统等都采用了实时技术。测试是任何开发过程中的基本步骤。它包括将一组实验应用于一个系统(被测试的系统)，具有多个目标，从检查正确的功能到度量性能。在本文中，我们感兴趣的是所谓的黑盒一致性测试，其目的是检查SUT与给定规范的一致性。SUT是一个“黑盒”，因为我们没有它的模型，因此只能依赖于它的可观察输入/输出行为。实时是通过时钟[1]的定量使用来测量的。当我们用真正的时钟来量化时间时，我们使用的是真正的时间。当我们需要用时间的定量表达来描述所使用系统的行为时，系统就称为实时系统。在我们的日常生活中，我们依赖于具有潜在时间约束的系统，包括航空电子控制系统、医疗设备、网络处理器、数字视频录制设备以及许多其他系统和设备。在这些系统中，每一个都有一个潜在的惩罚或后果，与时间的违反相关联.
美国伊利诺Assignment代写:实时系统
Real-time systems are very important parts of our life now a day to day. In the last few decades, we have been studied the time aspect of computations. But in recent years it has increase exponentially among the researchers and research school. There has been an eye catching growth in the count of real-time systems. Being used in domestic and industry production. So we can say that real-time system is a system which not only depends upon the correctness of the result of the system but also on the time at which the result is produced. The example of the real-time system can be given as the chemical and nuclear plant control, space mission, flight control systems, military systems, telecommunications; multimedia systems and so on all make use of real-time technologies.Testing is a fundamental step in any development process. It consists in applying a set of experiments to a system (system under test − SUT), with multiple aims, from checking correct functionality to measuring performance. In this paper, we are interested in so-called black-box conformance testing, where the aim is to check conformance of the SUT to a given specification. The SUT is a “black box” in the sense that we do not have a model of it, thus, can only rely on its observable input/output behavior.Real time is measured by quantitative use of clock (real clock)[1].Whenever we quantify time by using the real clock we use real time. A system is called real time system when we need quantitative expression of time to describe the behavior of the used system. In our daily lives, we rely on systems that have underlying temporal constraints including avionic control systems, medical devices, network processors, digital video recording devices, and many other systems and devices. In each of these systems there is a potential penalty or consequence associated with the violation of a temporal 

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