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| Re: Traces [message #496485 is a reply to message #496422] |
Tue, 10 November 2009 09:45  |
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Matthias,
On 2009-11-10 01:48:34 +0100, <mathias.salle@hp.com> said:
> I have a question about traces and was wondering to what objects are
> traces associated with?
>
> Say I have a UML Class object in on 2D diagram and another UML Class
> ojbect in another 2D diagram. it looks like you can relate those two
> objects using a Trace. It doesn't seem like the Trace belong to or is
> associated with any of the 2D diagrams. where is it specified?
Actually, this is not really a GEF3D related issue, but a modeling one.
I have explained traces, how they are stored (in a separate model), and
how they are visualized with GEF3D in the following paper:
Pilgrim, Jens von ; Vanhooff, Bert ; Schulz-Gerlach, Immo ; Berbers,
Yolande: Constructing and Visualizing Transformation Chains. In:
Schieferdecker, Ina (Hrsg.) ; Hartman, Alan (Hrsg.): Model Driven
Architecture — Foundations and Applications. 4th European Conference,
ECMDA-FA 2008, Berlin, Germany, June 9-13, Proceedings Bd. 5095.
Springer-Verlag. – ISBN 978–3–540–69095–5, 17–32. URL:
http://dx.doi.org/10.1007/978-3-540-69100-6_2
That is, you need three models: UML model 1, UML model 2, and a trace
model. The trace model inter-connects elements of model 1 and 2. In
order to "draw" the connection with GEF3D, two patterns or classes may
help you: the Connected Element Adpater and the
UnidirectConnectionEditPart. The first one is a more sophisticated
pattern which can always be applied, the second one is a class which is
easier to use but it requires the connected edit parts to support
anchors for _any_ connections. I have documented that in the JavaDoc,
see package org.eclipse.gef3d.ext.intermodel. In order to mark your
trace model (or better to say its edit part and figure) as an
inter-model, you can use the interfaces IInterModelRootEditPart and
IInterModelDiagram.
Regarding traces: As a matter of fact, traces and traceability are
subject of many papers in the area of model driven
development/engineering, and there will even be a special issue of the
"Software and Systems Modeling" journal on traceability (I don't know
when it will be published, I assume in a couple of weeks). If you are
interested in that topic, you may have a look at the workshop series
"ECMDA Traceability Workshop (ECMDA-TW)"
(http://www.modelbased.net/ecmda-traceability/) or "Workshop on
Traceability in Emerging Forms of Software Engineering (TEFSE)"
(http://web.soccerlab.polymtl.ca/tefse09/).
Cheers,
Jens
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