PHOSPHORUS: a task-based agent matchmaker

PHOSPHORUS is an agent matchmaking service that exploits domain ontologies, description logic, and a highly declarative language to reason about task-related agent capabilities. PHOSPHORUS uses the EXPECT goal language to represent the tasks that agents are capable of accomplishing, as well as requests to locate agents with a required capability. PHOSPHORUS supports matching through subsumption, reverse subsumption, and several kinds of goal reformulation.