NDLI: UCaS: A Schedulability Analysis Tool for AADL Models

Content Provider	IEEE Xplore Digital Library
Author	Shenglin Gui Lei Luo Qian Liu Fulei Guo Shaopeng Lu
Copyright Year	2008
Description	Author affiliation: Sch. of Comput. Sci. & Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu (Shenglin Gui; Lei Luo) \|\| R&D Center, Coretek Syst., Chengdu (Qian Liu; Fulei Guo; Shaopeng Lu)
Abstract	There is more and more the ubiquitous use of different types of real-time embedded (RTE) systems in our daily lives with rapid developments in science and technology. Because design faults might result in injury or even death to human beings who are using these systems, how to ensure the RTE systems are really safe is very important. The schedulability problem is a very important problem needs to be guaranteed in real-time software. In this paper, based on the Architecture Analysis and Design Language (AADL), we present Hybrid Automaton with Relative Time Constraints (HARTC) and Arrival Time Automaton (ATA) to abstract the semantics and external environment of each thread component in AADL respectively. Thus, we translate the schedulability problem in the system modeled by AADL into the reachability problem of locations in the product of HARTCs and ATAs. Then, we study the condition under which the reachability of HARTC is decidable. Under this condition, we develop a schedulability analysis tool called UCaS as a plug-in which can be integrated in the open source tool OSATE. We illustrate the schedulability analysis and simulation result provided by UCaS through an example. Finally, we give future directions need to be solved and our conclusion.
Starting Page	449
Ending Page	454
File Size	468015
Page Count	6
File Format	PDF
ISBN	9780769534923
DOI	10.1109/EUC.2008.115
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-12-17
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Real time systems UCaS hybrid automata Aerospace electronics Yarn Automotive engineering Analytical models Processor scheduling Embedded system schedulability analysis Automata AADL Computer architecture Time factors
Content Type	Text
Resource Type	Article

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