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Real-time systems with functional dependencies between tasks often require end-to-end (as opposed to task-level) guarantees. For many of these systems, it is even possible to accept the possibility of longer end-to-end delays if one can bound their frequency. Such systems are called weakly-hard. In this paper we provide end-to-end deadline miss models for systems with task chains using Typical Worst-Case...
To reduce the risk of costly timing errors detected after the integration phase, there is a need for efficient, reliable and automated timing prediction methods applicable already at the early design stages, even if based on incomplete or partial timing information. The obtained timing estimations can be consolidated along the different design phases, until the final integration. Model-Checking is...
As a consequence of the increasing complexity of modern real-time applications, the need for an efficient, reliable and automated performance estimation method throughout the whole development cycle becomes essential. Model-based formal timing analysis appears at first sight to be the adequate candidate for this purpose. However, its use in the industry is conditioned by a smooth and seamless integration...
Viewpoints are the current MDE research recommendation to manage the increasing embedded system design complexity. In this paper, we focus on viewpoints for the safety and performance engineering domains. Based on our experience at Thales, we discuss the impact that may have the interaction between both engineering domains on the applicability of viewpoints to the design process of safetycritical...
System level performance analysis plays a fundamental role in the design process of hard real-time embedded systems. Several different approaches have been presented so far to address the problem of accurate performance analysis of distributed embedded systems in early design stages. The existing formal analysis methods are based on essentially different concepts of abstraction. However, the influence...
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