An agent architecture is described with high-level process management applications in mind. The agent is “information-based” in that it is designed to operate with real-time information streams. The information that it receives may be of questionable integrity, and is represented in probabilistic first-order logic. The agent applies entropy-based inference techniques to its information base to determine its actions. Each agent is distinguished by the its information and by its plans. The agents' information consists of individual chunks that can be formed into clusters and so into sub-clusters, thus permitting the design of hierarchic multiagent systems consistent with holonic principles.