Kongress- und Tagungsbeiträge

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Lendermann, Peter; Heinicke, Matthias U.; McGinnis, Leon F.; McLean, Charles; Straßburger, Steffen; Taylor, Simon J. E.
Panel: distributed simulation in industry - a real-world necessity or ivory tower fancy?. - In: Winter Simulation Conference, 2007, ISBN 978-1-4244-1306-5, (2007), S. 1053-1062

Distributed simulation has a long history at the Winter Simulation Conference. Although successful in the military domain it appears, however, that the idea of applying distributed simulation in other fields for modeling and analysis of large-scale, heterogeneous systems such as communication networks or supply chains has still not reached the stage of commercial use until today. This panel attempts to identify reasons for this phenomenon by debating whether distributed simulation is actually a real-world necessity or should rather be considered ivory tower fancy.



http://dx.doi.org/10.1109/WSC.2007.4419704
Taylor, Simon J. E.; Mustafee, Navonil; Straßburger, Steffen; Turner, Stephen J.; Low, Malcolm Y. H.; Ladbrook, John
The SISO CSPI PDG standard for commercial off-the-shelf simulation package interoperability reference models. - In: Winter Simulation Conference, 2007, ISBN 978-1-4244-1306-5, (2007), S. 594-602

For many years discrete-event simulation has been used to analyze production and logistics problems in manufacturing and defense. Commercial-off-the-shelf Simulation Packages (CSPs), visual interactive modelling environments such as Arena, Anylogic, Flexsim, Simul8, Witness, etc., support the development, experimentation and visualization of simulation models. There have been various attempts to create distributed simulations with these CSPs and their tools, some with the High Level Architecture (HLA). These are complex and it is quite difficult to assess how a set of models/CSP are actually interoperating. As the first in a series of standards aimed at standardizing how the HLA is used to support CSP distributed simulations, the Simulation Interoperability Standards Organization's (SISO) CSP Interoperability Product Development Group (CSPI PDG) has developed and standardized a set of Interoperability Reference Models (IRM) that are intended to clearly identify the interoperability capabilities of CSP distributed simulations.



http://dx.doi.org/10.1109/WSC.2007.4419652
Straßburger, Steffen; Schulze, Thomas; Lemessi, Marco
Applying CSPI reference models for factory planning. - In: Winter Simulation Conference, 2007, ISBN 978-1-4244-1306-5, (2007), S. 603-609

This paper investigates the applicability of the CSPI reference models in different factory planning scenarios. These scenarios are taken from real industrial use cases. The CSPI reference models are put forward by the CSPI Product Development Group within the Simulation Interoperability Standards Organization (SISO). The objective of this group is to facilitate commercial-off-the-shelf (COTS) simulation package interoperability (CSPI). The approach to do this is to define and standardize use patterns of the High Level Architecture (HLA) which is the state-of-the-art standard for distributed simulation. An intermediate step towards this goal is the definition of the interoperability reference models discussed here. They describe typical interoperability problems encountered when connecting different COTS simulation packages. This paper focuses on the first two of these reference models and reports on experiences drawn for their implementation.



http://dx.doi.org/10.1109/WSC.2007.4419653
Pawlaszczyk, Dirk; Timm, Ingo J.
A hybrid time management approach to agent-based simulation. - In: KI 2006: advances in artificial intelligence, (2007), S. 374-388

In this paper we describe a time management approach to distributed agent-based simulation. We propose a new time management policy by joining optimistic synchronization techniques and domain-specific knowledge based on agent communication protocols. With respect to our experimental results, we assume that our approach helps to prevent too optimistic event execution. Consequently, the probability of time consuming rollbacks is reduced in comparison to a pure time warp based solutions. The approach has been implemented as a synchronization service for the JADE agent platform SimJade. The paper concludes by the discussion of our experimental results and future improvements.



http://dx.doi.org/10.1007/978-3-540-69912-5_28
Petsch, Mathias; Pawlaszczyk, Dirk; Schorcht, Hagen
Regelbasierte Koordinierung von agentengestützten Transportprozessen. - In: eOrganisation, ISBN 978-3-86644-095-1, (2007), S. 355-372

Die Planung und Gestaltung effizienter unternehmensübergreifender Transportnetze rückt zunehmend in den Fokus betriebswirtschaftlicher Betrachtungen. Für eine flexible überbetriebliche Koordination und informationstechnische Integration von Güterflüssen in Lieferketten wird dabei immer häufiger der Einsatz von Softwareagenten diskutiert. Zur Lösung des Koordinationsproblems innerhalb von Transportnetzen werden Allokationsmechanismen, beispielsweise Auktionsprotokolle, vorgeschlagen. Regeln kommt an dieser Stelle eine zentrale Bedeutung zu, da sie zur Lenkung des Verhaltens und als Ausdruck der Ziele von Akteuren dienen. Im vorliegenden Beitrag wird ein Ansatz zur regelbasierten Koordination agentengestützter Transportprozesse vorgestellt. Um eine Überwachung zwischenbetrieblicher Geschäftsprozesse zu ermöglichen, ist es notwendig technische und organisatorische Rahmenbedingungen auszuhandeln und verbindlich zu kodifizieren. Als Grundlage dient eine entsprechende Regelontologie, die zur Aushandlung gemeinsam abgestimmter Geschäftsregeln bzw. Prozessbedingungen genutzt werden kann und Rechte bzw. Pflichten der Agenten abbilden.