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AADL is an architecture description language intended for model-based engineering of high-integrity distributed systems. The AADL Behavior Annex (AADL-BA) is an extension allowing the refinement of behavioral aspects described through an AADL architectural description. When implementing Distributed Real-time Embedded system (DRE), fault tolerance concerns are integrated by applying replication patterns...
In hard real-time systems such as avionics, computer board level designs are typically customized to meet specific reliability and real time requirements. This paper focuses on computer-aided application-specific design of I/O architecture using PCI as an example. We have built a tool (ASIIST) that will enable engineers to explore design spaces at the I/O bus architecture level, performing analysis...
Many application systems maintain state as part of their behavioral semantics. This state can reflect continuous state, e.g., sensor measurements, or discrete state. Modeling notations like Simulink combine the two to support modeling of hybrid control systems. In this paper we examine whether the intended behavior of state-based systems is implemented correctly by different runtime architectures...
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