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GRETA: a tool concept for validation and verification of signal based systems
Authors:
Andreas Amström
,
Camila Grozs
,
Andreas Gullemot
Publication Type:
Report - MRTC
ISRN:
MDH-MRTC-16/2000-1-SE
Abstract
The main part of the software in the Ericsson AXE
telecommunication system is based on an event
based real time language called PLEX. In this
master thesis the main subjects are to add the
possibility of abstraction and analysis of systems
written in PLEX. GRETA (GRaphical Extractor
and Time Analyzer) enables the programmer to
view and explore the system graphically and
browse the system on different abstraction levels.
The graph shows time data for signals and
code-items. It enables programmers to find
unoptimized parts, dead ends, loops and to
understand the behavior of the system on signal
level.<br>
The prototype applies graphical abstraction on
systems written in PLEX. GRETA is structured in
three parts, a facts finder, a structure finder and a
graph finder. The Facts Finder (code information
extraction part) extracts necessary information
from PLEX code and compiler (not implemented).
The Structure Finder (implemented in Prolog)
uses output from the Facts Finder (output is a
well specified data file). The program is able to
capture the signaling connections between the
function blocks and the code-items in the
system. The Graph Finder (implemented in Java)
uses the structures created by the Structure
Finder and displays all connections graphically.
Bibtex
@techreport{Amstrom237,
author = {Andreas Amstr{\"o}m and Camila Grozs and Andreas Gullemot},
title = {GRETA: a tool concept for validation and verification of signal based systems},
number = {ISSN 1404-3041 ISRN MDH-MRTC-16/2000-1-SE},
month = {February},
year = {2000},
url = {http://www.es.mdu.se/publications/237-}
}