This article describes ECML (ETRI CPS Modeling Language), a modeling langue for hybrid system simulation. ECML extends DEV&DESS (Discrete Event and Differential Equation System Specification), with conveniences in modeling and simulation. Modeling environment EcoPOD (ETRI CPS Open Developer) and visual simulator EcoSIM (ETRI CPS Simulator) support visual modeling and simulation. We introduce mo...

This paper describes the design and development of DEVS/HLA, an HLA-compliant modeling and simulation environment that supports high level model building using the DEVS (Discrete Event System Specification) methodology, a sound formal M&S framework. After a brief review of the DEVS formalism, we discuss the implementation of the formalism in C++ as a layer above the Runtime Infrastructure (RTI)...

Modelica is an object-oriented language for modeling of large and heterogeneous physical systems. Typical applications include mechatronic models in robotics, automotive and aerospace applications involving mechanical, electrical, hydraulic and control subsystems, process oriented applications and generation and distribution of electric power. The unique features of Modelica to model combined c...

With biological experiments generating lots of empirical data, the challenge is to develop a modeling paradigm that integrates structural, molecular and genetic data for a quantitative understanding of physiology and behavior of biological processes at multiple scales starting from cell, to tissues and finally to the whole organism. The complexity of the problem motivates the use of computer or...

We introduce a new architecture for the design of a tool for modeling and simulation of continuous and hybrid systems. The environment includes a compiler based on Modelica, a modular and a causal standard specification language for physical systems modeling (the tool supports models composed using certain component classes defined in the Modelica Standard Library, and the instantiation, parame...

This paper describes the JDEVS modeling and simulation environment. JDEVS has been developed for over a year to serve as an experimental framework for natural systems modeling techniques. It enables discrete-event, general purpose, object-oriented, component based, GIS connected, collaborative, visual simulation model development and execution. The sample models implementation shows that this e...

Along with the rapid development of embedded devices and network technology, the area of Cyber Physical Systems (CPS), has arisen. In terms of modeling and simulation, CPS—like many technical systems—have a hybrid nature, i.e., discrete-event behavior and continuous-time dynamics have to be integrated with each other. Basically, this integration is supported by modern object-oriented modeling p...

This paper describes the use of a process simulator to support software project planning and management. The modeling approach here focuses on software reliability, but is just as applicable to other software quality factors, as well as to cost and schedule factors. The process simulator was developed as a part of a decision support system for assisting project managers in planning or tailoring...

Earlier research in the modeling and simulation of hybrid systems led to the development of a general hybrid systems modeling language (hsml). Effort is underway to implement this concept in software. The standard matlab model framework and integration algorithms have been extended to support state-event handling in continuous-time components and to handle embedded discrete-time components. In ...