Brahms Agent-Based Modeling & Simulation Course Course Presentation: 1 This is the first presentation in a series of presentations for the Brahms Agent Oriented Modeling and Simulation Language. Brahms is developed at NASA Ames Research Center by the Brahms Team. Brahms is freely available for download at http://www.agentisolutions.com The Brahms Agent-Based Modeling & Simulation Course by Maarten Sierhuis is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 United States License

1. Brahms Tutorial Overview of Brahms and Anatomy of a Brahms model

2. Brahms Multi-Agent Language Language Compiler Interactive Development Environment Discrete-event Simulation Engine / Virtual Machine End-user Simulation Displays Simulation History Data Base Java-based Java API XML Runs on PC’s, Mac, Unix, Linux ... © Maarten Sierhuis

4. Methodology: Simulation to Implementation September 29, 2009 Implementation Future Ops Simulation Metrics & Data Current Ops Simulation Work System Design Workflow Tool Observation Operations

5. September 29, 2009 2 4 6 8 10 TRL 1992 1996 2000 2004 2008 NYNEX JPL JSC APOLLO VICTORIA JSC MOD OCAMS PROJECT BRAHMS – HISTORY OF APPLICATIONS ISS Surface Hab Mobile * Agents * Supported ExPOC and Scout robot and crew in Sept’06 field test & Pogo Test in July ‘07 Aeronautics CTFM PROJECT Brahms 24x7 in Mission Control

6. Types of Agent Languages

11. Brahms Agent Engine Beliefs (atomic formulas) Desires (workframes thoughtframes belief matching) Plans (workframes Thoughtframes activities) Intentions (workframes thoughtframes instantiations) input action output Beliefs-Desires-Intentions

14. Multiagent Modeling Language BRAHMS Virtual Machine Scheduler T:0 belief X T:1 fact Y … . … . T:N belief Z World State fact F1 . fact Fn fact Y Java class Activity2 extends AbstractExternalActivity { …. } class Agent5 extends AbstractExternalAgent { …. } Java Agent 5 World environment

15. Brahms: Distributed MAS Agent Directory Service

16. Brahms Agent Engine

17. Brahms Virtual Machine Agent Engine Discrete Event Queue Belief RSN Fact RSN Belief Set Work Selector Work Executor World State Fact Set Real-Time Mode Scheduler Discrete Event Queue Event Distributor SIM Mode

20. Model Files

22. Command Line Model Compilation sierhuis% pwd /Users/sierhuis/Documents/eclipse/workspace/Brahms Tutorial Files/AtmModel/final_source sierhuis% ~/Applications/AgentEnvironment/bin/bc -lp ~/Applications/AgentEnvironment/Models/lib -source source -d build -bar ./lib/AtmModel.bar ./source/gov/nasa/arc/brahms/atm/AtmModel.b NASA Brahms Compiler Version 2.21.8 Copyright (c) 1997-2008 NASA Ames Research Center. All Rights Reserved. 0 error(s), 0 warning(s) Exporting model as XML 0 error(s), 0 warning(s) Creating Brahms archive file. Archive './lib/AtmModel.bar' created.