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Agent-oriented system development aims to simplify the construction of complex systems by introducing a natural abstraction layer on top of the object-oriented paradigm composed of autonomous interacting actors. One main advantage of the agent metaphor is that an agent can be described similar to the characteristics of the human mind consisting of several(More)
Renew is a computer tool that supports the development and execution of object-oriented Petri nets, which include net instances, synchronous channels, and seamless Java integration for easy modelling. Renew is available free of charge including the Java source code. Due to the growing application area more and more requirements had to be fulfilled by the(More)
This work proposes a way to model the structure and behaviour of agents in terms of executable coloured Petri net protocols. Structure and behaviour are not all aspects of agent based computing: agents need a world to live in (mostly divided into platforms), they need a general structure (e.g. including a standard interface for communication) and their own(More)
Current modeling techniques are not well equipped to design dynamic software architectures. In this work we present the basic concepts for a dynamic architecture modeling using nets-within-nets. Nets-within-nets represent a powerful formalism that allows active elements, i.e. nets, to be nested in arbitrary and dynamically changeable hierarchies. Applying(More)
A multi-agent system has a high degree of concurrency. Petri nets are a well-established means for the description of concurrent systems. Reference nets are higher level, object-oriented Petri nets. With Renew (REference NEt Workshop), there exists a tool to model and execute reference nets with seamless Java integration. So, reference nets can be used to(More)