Our goal was to realize a truly hybrid simulation system, which allows the simultaneous use of discreet event simulation and continuous 3D-simulation on a unified database. The key component is an active real-time simulation database, which is an object-oriented, self-reflecting graph database, with a powerful metainformation system. We achieve this by using State Oriented Modeling, which combi...

We propose a framework for component-based modeling of distributed systems. It provides separation of concerns between computation (in object oriented components), coordination (via connectors) and dynamic reconfiguration (by the network manager). This framework builds upon the object oriented modeling language Creol for modeling the components, and uses the ideas of Reo for exogenous coordinat...

forest classification on the basis of satellite images is a promising technique both for primary map production and for map updating and forest monitoring. for accurate for-est classification into three classes, using mapping by canopy cover density “high spatial resolution satellite images have to be used in order to obtain the required spatial detail” [schneider, 1999]. at the same time, the ...

Object-oriented modeling is spreading in current simulation of physiological systems through the use of the individual components of the model and its interconnections to define the underlying dynamic equations. In this paper we describe the use of both the SIMSCAPE and MODELICA simulation environments in the object-oriented modeling of the closed loop cardiovascular system. The performance of ...

This paper provides a research model to analyze how decisions relating to the choice of modeling approach are made in the context of software engineering and how behavioral variables account for the intention and actual use associated with conceptual modeling frameworks. Modeling approach refers to the part of system development that involves investigating the problems and requirements of the u...

In this report we present the new standard tool of object oriented simulation, the object oriented programming language Modelica. Modelica is a modern language built on non-casual modeling with mathematical equations and object oriented constructs to facilitate reuse of modeling knowledge. The design of Modelica started in the continuous time domain since there is a common mathematical framewor...

Business Process Modeling (BPM) is the first and most important step in business process management lifecycle. Graph based formalism and rule based formalism are the two most predominant formalisms on which process modeling languages are developed. BPM technology continues to face challenges in coping with dynamic business environments where requirements and goals are constantly changing at the...

A number of proposals for object-oriented extensions to VHDL deal with object-oriented extensions to support high-level modeling of data. They provide features for expressing data abstraction, encapsulation, and inheritance with polymorphism— features that are central to object oriented techniques. There are two approaches to object-oriented data modeling: class-based and programming by extensi...