Extending the JADE agent behaviour model with JBehaviourTrees Framework

Authors:
Iva Bojic;Tomislav Lipic;Mario Kusek;Gordan Jezic
Affiliations:
University of Zagreb, Faculty of Electrical Engineering and Computing Zagreb, Croatia;Rudjer Boskovic Institute, Centre for Informatics and Computing, Zagreb, Croatia;University of Zagreb, Faculty of Electrical Engineering and Computing Zagreb, Croatia;University of Zagreb, Faculty of Electrical Engineering and Computing Zagreb, Croatia
Venue:
KES-AMSTA'11 Proceedings of the 5th KES international conference on Agent and multi-agent systems: technologies and applications
Year:
2011

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Abstract

Creating modular behaviours in JADE using a traditional method such as the FSM (Finite State Machine) can be a difficult task to achieve. The first issue with FSMs is that they do not allow reusability of logic in different contexts. Secondly, the FSMs do not lend themselves well to concurrency within the execution thread and thus eliminating the possibility for parallel behaviours. Lastly, as the number of states in FSMs becomes increasing large, it becomes difficult to manage them. In this paper we introduce our JBehaviourTrees Framework that extends JADE Behaviours with BTs (Behaviour Trees) model. BTs are built via the composition of basic tasks increasing the possibility for modularity and code reuse. The proposed approach is verified through a case study concerning a FIPA-Request Interaction Protocol.