KQML as an agent communication language
CIKM '94 Proceedings of the third international conference on Information and knowledge management
Volcano— An Extensible and Parallel Query Evaluation System
IEEE Transactions on Knowledge and Data Engineering
DB2 Query Parallelism: Staging and Implementation
VLDB '95 Proceedings of the 21th International Conference on Very Large Data Bases
AQuES: An Agent-based Query Evaluation System
COOPIS '97 Proceedings of the Second IFCIS International Conference on Cooperative Information Systems
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We present the concept and implementation of a communication infrastructure for a distributed database system referring to the agent-based database query evaluation system AQuES. Within this model we use system components that build a federated multi agent system (MAS). We present those parts of the message transport layer that provide an "easy to handle", scalable architecture based on the "plug & play" building block principle. Furthermore, we present a generic dialog manager that enables each agent to communicate in multiple concurrent threads of execution. Based on this concept, AQuES agents keep track of a complex evaluation environment in a dynamic, multi-query scenario.