Superdense time trajectories for DEVS simulation models

Many scientific and engineering applications generate data that are well-suited to be studied using time series charts. Two types of time series that define input, output, and state dynamics of DEVS models are piecewise constant and event charts. In this paper, time series capable of displaying both linear and superdense time segments and trajectories are conceptualized and formulated. These lend themselves for visualizing behavior of parallel atomic and coupled DEVS models. The concept of superdense time segments is realized as plug-ins as part of the Eclipse BIRT (Business Intelligence and Reporting Tool) framework. They can receive timebased alphanumerical data sets from external static and dynamic sources, including the DEVS-Suite simulator. As standalone plug-ins, time series can be used to create static plots and used in BIRT reports. These plug-ins are also integrated into the DEVS-Suite simulator where each model component’s behavior can be customized and dynamically plotted. Time series charts simplify and complement tabular logging of data sets for developing simulation models that exhibit zero-time transitory state transitions. Author