Simulating a Gas Distribution Network in a Distributed Object Oriented System Ant nio Ribeiro

Today s dynamic industrial process simulation problems require systematically new methodologies and sophisticated computational tools Such processes involve frequently discontinuities environ ment structures changes and entities with high functional levels Furthermore there are cases where we must integrate intelligent techniques and negotiation protocols These characteristics are crucial in distributed problems that require resource balance low cost distribution plans and stock opti mization In order to analyse the application of a distributed object oriented simulation system we selected as a case study a gas distribution network in which we nd all the referred characteristics This paper presents a brief description of the simulation scenario the overall system s structure the intelligent negotiation protocol used by system s objects and the concurrent programming techniques to implement it Field Intelligent Simulation Environments