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Accession Number
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N20120014281
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Title
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Modeling and Analysis of Mixed Synchronous/Asynchronous Systems.
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Publication Date
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Sep 2012
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Media Count
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43p
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Personal Author
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B. Hall K. R. Driscoll
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Abstract
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Practical safety-critical distributed systems must integrate safety critical and non-critical data in a common platform. Safety critical systems almost always consist of isochronous components that have synchronous or asynchronous interface with other components. Many of these systems also support a mix of synchronous and asynchronous interfaces. This report presents a study on the modeling and analysis of asynchronous, synchronous, and mixed synchronous/asynchronous systems. We build on the SAE Architecture Analysis and Design Language (AADL) to capture architectures for analysis. We present preliminary work targeted to capture mixed low- and high-criticality data, as well as real-time properties in a common Model of Computation (MoC). An abstract, but representative, test specimen system was created as the system to be modeled.
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Keywords
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Design analysis
Interfaces
Real time operation
Safety
Synchronism
Telecommunication
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Source Agency
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National Aeronautics and Space Administration
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NTIS Subject Category
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62 - Computers, Control & Information Theory
45C - Common Carrier & Satellite
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Corporate Author
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National Aeronautics and Space Administration, Hampton, VA. Langley Research Center.
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Document Type
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Technical report
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Title Note
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N/A
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NTIS Issue Number
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1307
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Contract Number
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NNL10AB32T
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