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Analyzing partially-implemented real-time systems

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3 Author(s)
Avrunin, G.S. ; Dept. of Math. & Stat., Massachusetts Univ., Amherst, MA, USA ; Corbett, J.C. ; Dillon, L.K.

Most analysis methods for real-time systems assume that all the components of the system are at roughly the same stage of development and can be expressed in a single notation, such as a specification or programming language. There are, however, many situations in which developers would benefit from tools that could analyze partially-implemented systems: those for which some components are given only as high-level specifications while others are fully implemented in a programming language. In this paper, we propose a method for analyzing such partially-implemented real-time systems. We consider real-time concurrent systems for which some components are implemented in Ada and some are partially specified using regular expressions and graphical interval logic (GIL), a real-time temporal logic. We show how to construct models of the partially-implemented systems that account for such properties as run-time overhead and scheduling of processes, yet support tractable analysis of nontrivial programs. The approach can be fully automated, and we illustrate it by analyzing a small example

Published in:

Software Engineering, IEEE Transactions on  (Volume:24 ,  Issue: 8 )

Date of Publication:

Aug 1998

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