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An investigation is underway regarding technologies to support the design, development and use of distributed , web-based simulations. As part of this investigation the Simjava simulation-support package has been extended to utilize the Remote Method In-vocation facilities of the Java Development Kit (JDK) 1.1. Current efforts with Simjava are described and(More)
The venerable problem solving technique of simulation finds itself in the midst of a revolution. Where once it was regarded as a " technique of last resort " for systems analysis, today simulation is widely applied to support myriad purposes, including: training, interaction, visualization, hardware testing , and decision support in real-time. Advanced(More)
We consider the issue of composability as a design principle for simulation. While component-based modeling is believed to potentially reduce the complexities of the mod-eling task, we describe a few of the complexities introduced through composability. We observe that these complexities might tend to offset the benefits of component-based modeling on a(More)
The field of parallel discrete event simulation is entering a period of self-assessment. Fifteen years of investigation has witnessed great strides in techniques for efficiently executing discrete event simulations on parallel and distributed machines. Still, the discrete event simulation community at large has failed to recognize many of these results. The(More)
Although redundancy in model specification generally has negative connotations, we offer arguments for revising those convictions. Defining “representational redundancy” as the inclusion of any symbols not required to fulfill the study objectives, we cite several sources of redundancy, classified as accidental or intentional, that contribute(More)
If you nail two things together that have never been nailed together before, some schmuck will buy it from you. For the better part of the past quarter century, the defense simulation industry has invested significant resources in technologies and methods for making independently developed simulations work together at run-time. Many reasons for this(More)
The Condition Speciication, a language designed to permit automated simulation model diagnosis, is reviewed and the incorporation of support for model execution within the Condition Speciication is described. Condition Speciication semantics are revised to facilitate model execution and algorithms for the direct execution of graphical model forms are(More)
The nature of the emerging field of web-based simulation is examined in terms of its relationship to the fundamental aspects of simulation research and practice. The presentation, assuming a form of debate, is based on a panel session held at the first International Conference on Web-Based Modeling and Simulation, which was sponsored by the Society for(More)
Web-based simulation, a subject of increasing interest to both simulation researchers and practitioners, has the potential to signiicantly innuence the application and availability of simulation as a problem-solving technique. Web technologies also portend cost-eeective distributed modeling and simulation. These applications will require solutions to the(More)