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A Web-based Environment for building Distributed Simulations.
KTH, Superseded Departments, Microelectronics and Information Technology, IMIT.
2002 (English)In: Proceedings of the European Simulation Interoperability Workshop, London, Great Britain,June 2002, 2002Conference paper, Published paper (Other academic)
Abstract [en]

Internet communication in general and the World Wide Web specifically have beenrevolutionizing the computer industry. It has affected the way computer systems have beendesigned, developed and executed. Web-based simulation is a relatively new topic within thefield of modelling and simulation (M&S), which represents a connection between the webtechnologyand M&S. Although the discipline is young it has the potential to fundamentallychange the simulation modelling methodology.An ongoing project within the Swedish Defense Research Agency (FOI) is investigating thepotentials of web-based simulation by studying the possibilities, requirements and feasibility ofdeveloping methodologies for building web-based distributed simulations, e.g. HLA17federations. In order to achieve the above goal an environment has been designed and partiallydeveloped for collaboratively building distributed simulations, using a standard web-browser onthe client side. One key requirement for the environment has been the ability to buildcomponent-based simulations with a hierarchical structure.In this paper we will present our initial results and findings when developing our environment,present different techniques and some of our implementations, based on HLA standard andcontinue with a discussion on how to construct federations in a hierarchical fashion. We willdiscuss how HLA federations can be integrated with the web technology, without burdening theclient with heavy calculations, often associated with execution of simulations. We will alsodiscuss the component-based development approach as a quick and cost effective method forbuilding software systems and how it could be used with web-based simulations.

Place, publisher, year, edition, pages
2002.
National Category
Information Science
Identifiers
URN: urn:nbn:se:kth:diva-27774OAI: oai:DiVA.org:kth-27774DiVA: diva2:380931
Note
QC 20101222Available from: 2010-12-22 Created: 2010-12-22 Last updated: 2010-12-22Bibliographically approved
In thesis
1. Consistency management in collaborative modelling and simulation
Open this publication in new window or tab >>Consistency management in collaborative modelling and simulation
2005 (English)Licentiate thesis, comprehensive summary (Other scientific)
Abstract [en]

The aim of this thesis is to exploit the technological capabilities of computer supported collaborative work (CSCW) in the field of collaborative Modelling and Simulation (M&S). The thesis focuses on addressing two main problems: (i) providing flexible means of consistency management in collaborative M&S, and (ii) the ability of providing platform and application independent services for collaborative M&S.

In this work, some CSCW technologies and how some of the concepts can be incorporated in a distributed collaborative M&S environment, have been studied. An environment for component based simulation development and visualization, which provides support for collaborative M&S, has been designed. Some consistency policies that can be used in conjunction with distributed simulation and the High Level Architecture (HLA) have been investigated. Furthermore, the efficient utilization of HLA and XML in combination, as the foundation of a CSCW infrastructure has been proved. Two consistency policies were implemented utilizing HLA, a strict and an optimistic, in the distributed collaborative environment. Their performance was compared to the performance of a totally relaxed policy, in various collaboration situations.

Place, publisher, year, edition, pages
Stockholm: KTH, 2005. 136 p.
Series
Trita-IMIT. LECS, ISSN 1651-4076 ; 2005:11
Keyword
CSCW, collaboration, HLA, distributed simulation, consistency management, CSCW services, modelling and simulation
National Category
Information Science
Identifiers
urn:nbn:se:kth:diva-571 (URN)
Presentation
2005-12-02, sal Gemini, IMIT, Forum, Isafjordsgatan 39, Kist, Stockholm, 13:00
Supervisors
Note
QC 20101222Available from: 2005-12-28 Created: 2005-12-28 Last updated: 2010-12-22Bibliographically approved

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf