The following technical report is available from
http://aib.informatik.rwth-aachen.de:
The MeDUSA Reference Manual, Second Edition
Alexander Nyßen, Horst Lichter
AIB 2008-07
MeDUSA (Method for UML2-based Construction of Embedded & Real-Time
Software) is a model-based software construction method targeting the
domain of small embedded & real-time software. MeDUSA was developed by
the Research Group Software Construction of the RWTH Aachen University
in close cooperation with the German ABB Corporate Research Centre. It
incorporates various practical experiences gained during the industrial
development of embedded software in ABB Business Unit Instrumentation.
Being Use Case-driven, MeDUSA systematically covers the software
construction lifecycle phase from the early requirements up
to implementation. Models are successively developed and employed
throughout all activities. By enforcing a class-based rather than an
object-oriented design, a smooth transition of the resulting design
model towards an implementation in a procedural programming language is
facilitated. This is essential, as procedural programming languages as the
C language are still state-of-the-art in the domain of small embedded &
real-time software.
The following technical report is available from
http://aib.informatik.rwth-aachen.de:
Comparing recent network simulators: A performance evaluation study
Hendrik vom Lehn, Elias Weingärtner and Klaus Wehrle
AIB 2008-16
Ranging from the development of new protocols to validating analytical
performance metrics, network simulation is the most prevalent methodology
in the field of computer network research. While the well known ns-2
toolkit has established itself as the quasi standard for network
simulation, the successors are on their way. In this paper, we first
survey recent contributions in the field of network simulation tools as
well as related aspects such as parallel network simulation. Moreover,
we present preliminary results which compare the resource demands for
ns-3, JiST, SimPy and OMNeT++ by implementing the identical simulation
scenario in all these simulation tools.