1 Architectural Design for Multi-Agent Simulation System Presented by: Ameya A. Velankar

2 Outline Introduction to Multi-Agent Systems The DIVAS Project Architectural Design of DIVAS Framework DIVAS Social World DIVAS Environment Architecture DIVAS Agent Architecture Conclusion

3 MAS is the New generation architectural design paradigm Characteristics of MAS are Decentralized system No central control unit Basic entities: agent and environment Co-operative, collaborative processing Standardization effort Foundation for Intelligent Physical Agents (FIPA) Object Management Group (OMG) Multi-Agent Systems (MAS)

4 What is an “Agent”? Agent Is an autonomous software entity has objectives to satisfy possesses skills and can offer services possesses resources of its own can communicate, cooperate, coordinate and negotiate directly with other agents acts in an environment that is partially perceived

5 The DIVAS project DIVAS (Dynamic Information Visualization of Agent Systems) is a framework used for the development, visualization and simulation of large scale distributed multi-agent systems.

6 Architectural Design of DIVAS Project Agent Management System Agent 1 Agent n Agent - Environment Message Transport Service DIVAS Agent-Environment System Publisher/Subscriber Messaging Service Env - Env Message Trasport System … Cell 1 2D Location Graph Cell n Data Management System Agent Clustering Tool Visualization Framework Prediction System: Xtractis 2D Visualization Tool 3D Visualization Tool Explanatory Function Predictive Function Topographic Function UserinterfaceUserinterface … Agent – Agent Message Transport Service Environment Management System

7 DIVAS Social World

8 The DIVAS Environment Architecture

9 The DIVAS Agent Architecture

10 Design Quality Attributes of DIVAS Architecture Internal Attributes Correctness and completeness High cohesion and low coupling External Attributes Generality Reusability Plug-n-play Conclusion

11 1. R. Mili, G. Leask, R. Steiner, and E. Oladimeji, “Architecture and Design Viewpoints for Agent-Environment Systems,” Environments for Multi-Agent Systems, Proceedings E4MAS’04, AAMAS Conference, New York, July 2004, Technical Report UTDCS-43-04, The University of Texas at Dallas, November R. Steiner, G. Leask and R. Z. Mili, “ An Architecture for MAS Simulation Environments,“ Environments for Multi-Agent Systems, E4MAS’05, accepted AAMAS Conference, Utrecht, Netherlands, July E. A. Oladimeji, R. Z. Mili, and U. Shakya, “Towards an Abstract Agent Architecture for MAS Simulation Systems,” Agent-Oriented Software Engineering, AOSE-2005, AAMAS Conference, July R. Z. Mili, E. Oladimeji, and R. Steiner, “Design of the DIVAS Simulation Systems,” Multi-Agent-Based Simulation, MABS ’05, AAMAS Conference, July References