Common Pitfalls of Using QVT Relations - Graphical Debugging as Remedy

A. Kusel, W. Schwinger,M. Wimmer, W. Retschitzegger:
"Common Pitfalls of Using QVT Relations - Graphical Debugging as Remedy";
Vortrag: Fourth IEEE International workshop UML and AADL, Potsdam; 02.06.2009 - 04.06.2009; in:"14th IEEE International Conference on Engineering of Complex Computer Systems (ICECCS 2009)", IEEE Computer Society, (2009), ISBN: 978-0-7695-3702-3; S. 329 - 334.

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Abstract:


OMG´s Model-Driven Architecture (MDA) has emerged
as a new approach for the development of software. For
this, the Query/View/Transformation (QVT) standard plays
a central role, since it allows for the specification of model
transformations. Nevertheless, until now, QVT-tool support
in general and debugging support in particular in the context
of MDA are rather limited, supposable being a reason,
that the adoption of QVT in practice has not yet been
achieved. We therefore propose graphical debugging for
the QVT Relations language based on TROPIC - a model
transformation approach on the basis of Coloured Petri
Nets. By enabling debugging on the TROPIC level, one
gains several advantages when developing transformations.
Firstly, debugging can take place at a high level of abstraction.
Secondly, it serves for explicating the operational
semantics of a transformation. Thirdly, it provides a homogenous
representation of all transformation artifacts. As
a first step towards QVT debugging, this paper aims at a
deeper understanding of the operational semantics of QVT,
classifying common pitfalls by using QVT and discussing
how they may be identified at the TROPIC level.