Accession Number N20120014281
Title Modeling and Analysis of Mixed Synchronous/Asynchronous Systems.
Publication Date Sep 2012
Media Count 43p
Personal Author B. Hall K. R. Driscoll
Abstract 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.
Keywords Design analysis
Interfaces
Real time operation
Safety
Synchronism
Telecommunication


 
Source Agency National Aeronautics and Space Administration
NTIS Subject Category 62 - Computers, Control & Information Theory
45C - Common Carrier & Satellite
Corporate Author National Aeronautics and Space Administration, Hampton, VA. Langley Research Center.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1307
Contract Number NNL10AB32T

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