B. JavaFrame — Framework for Java Enabled Modelling

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JavaFrame: Framework for Java Enabled Modelling
?ystein Haugen & Birger M?ller-Pedersen
Ericsson Research NorARC - Applied Research Center, Ericsson Norway
JavaFrame is a Modelling Development Kit that aims to improve the dependability of large
complex real-time systems implemented in Java. It is argued that using JavaFrame will also
make the resulting system more maintainable through the independence of system parts, and that
producing a Java system with JavaFrame will be more efficient than traditional approaches.
Areas: Large complex systems, Real-time, Java, UML
Contact:
Dr. Oystein Haugen
Ericsson Research NorARC
P.O. Box 34,
N-1375 Billingstad,
Norway
Tel: +47 66 84 23 46
Fax: +47 66 84 19 15
Mob: +47 913 90 914
E-mail: oystein.haugen@ericsson.no
Web: http://eto.ericsson.se/org/i_r
1. INTRODUCTION - THE CHALLENGE
Support for the modelling of large, complex (and especially real-time) systems has recently attracted
much attention. It is generally agreed that UML does not have adequate mechanisms. Projects using UML
[7] therefore do not rely on UML for modelling the overall system structure. They use UML for object
modelling (with classes and associations) and for use case/interaction modelling, while system structure is
modelled by non-standard box and arrow diagrams.
Some languages and tools have adequate mechanism. If C++ is the preferred (or only) implementation
language, the ROOM language supported by RoseRT
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(as a UML profile
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sometimes referred to as UML-
RT) is an option. If the modelling should be independent of implementation language, then SDL [5] may be
the answer. SDL has a formalised concept of objects consisting of (connected) objects, also covering the
special case of system structuring, simply by regarding systems and subsystems as just (large) objects. While
SDL originally had flat state machines, ROOM combi ned the idea of system object structuring mechanism of
SDL with Statecharts.
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See information on RoseRT on http://wendang.chazidian.com/
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A UML profile in an adaptation of UML for a specific purpose. "UML-RT" is a proprietary profile for Rational's RoseRT tool.