Reconnecting Subnets in a Decision Architecture

"The Decision Architecture (DA) being developed by project Hercules consists of a large Bayes' net designed to combine information from multiple, sources, and systems to help make decisions about the number, kinematic state, and types of targets presentduring all phases of a ballistic missile attack. The DA will integrate information from a number of disparate subsystems in several locations. During this process it may be useful or necessary for one or more of these subsystems to operate in isolationwithout sending or receiving information from the rest of the DA. The proposed work will develop methods to connect or reconnect a subnet to rest of the decision architecture in such a manner that (1) information from the subnet is correctly and optimallyintegrated into the Bayes' net representing the rest of the DA; (2) information from the DA is correctly and optimally integrated into the subnet; (3) integration is performed without interrupting the incorporation of other information being obtainedduring the integration; (4) integration is performed automatically and autonomously at the time of reconnection without requiring special operations by DA. A successful completion of this work will improve the Decision Architecture by increasing itsmodularity. Subnets can be maintained at different locations and on different computers and connected or reconnect when desired. The DA will be more robust to communications limitations and fail