NDLI: A Formal Architecture Pattern for Real-Time Distributed Systems

Content Provider	IEEE Xplore Digital Library
Author	Al-Nayeem, A. Mu Sun Xiaokang Qiu Lui Sha Miller, S.P. Cofer, D.D.
Copyright Year	2009
Abstract	Pattern solutions for software and architectures have significantly reduced design, verification, and validation times by mapping challenging problems into a solved generic problem. In the paper, we present an architecture pattern for ensuring synchronous computation semantics using the PALS protocol. We develop a modeling framework in AADL to automatically transform a synchronous design of a real-time distributed system into an asynchronous design satisfying the PALS protocol. We present a detailed example of how the PALS transformation works for a dual-redundant system. From the example, we also describe the general transformation in terms of intuitively defined AADL semantics. Furthermore, we develop a static analysis checker to find necessary conditions that must be satisfied in order for the PALS transformation to work correctly. The transformations and static checks that we have described are implemented in OSATE using the generated EMF metamodel API for model manipulation.
Starting Page	161
Ending Page	170
File Size	359613
Page Count	10
File Format	PDF
ISBN	9780769538754
ISSN	10528725
DOI	10.1109/RTSS.2009.50
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-12-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Real time systems Synchronization Clocks Protocols Computer architecture Aerospace electronics Sun Computer science Formal verification Architecture description languages architecture description language Architecture pattern logical synchronization GALS formal verification
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Hardware and Architecture Software

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