The Object Oriented Petri Net Component Model

The formalism of Object Oriented Petri Nets (OOPN) is a part of the work dealing with the method of system development in simulation. The work is based on the ideas that system models are alwaysexecuted even if they contain only one simple element or any changes are performed. Thus, thereis no difference between models, prototypes, or target system. Moreover, it should be possibleto use different formalisms to describe models.Whence it follows that a common platform is needed. The platform has to be simple and has to allow to change models on the fly. Therefore, the formalism of Discrete Event System Specification (DEVS) has been used to specify the platform. It enables to compose system using DEVS-based components, whereas each such a component is modeled by means of OOPN. It preserves the advantagesof using OOPN for behavior modeling and makes it possible to hierarchize models.The paper defines a platform based on DEVS and OOPN formalisms and deals with a questionof safe changes of components on the fly.