Agent technology is a new distributed computing technology , agent is a computing unit which can run persistently and autonomously under distributed environments , it has several features such as initiative , interoperability , reactiveness and autonomy Agent技术是一种全新的分布式计算技术, agent是分布式环境下持续自主运行的计算实体,具有主动性、交互性、反应性、自治性等特点。