Abstract

chematically in Figure 1. It comprises a set of data structures (labeled boxes) in a global memory and a three-step execution cycle: (a) an executor executes the next action, making changes to memory and producing associated events; (b) an agenda manager triggers known actions whose conditions are satisfied by those events and puts contextspecific instances on an agenda of possible actions; and (c) a scheduler rates possible actions against the current control plan and chooses the one with the highest rating as the next action to be executed. Control plans play a central role in the architecture. As shown in Figure 1, the control plan is a data structure containing any number of component plans, each with its own hierarchical and temporal organization. Typical control plans are abstract and do not specify sequences of particular actions. Instead, each "step" in a plan specifies: (a) a class of intended actions in terms o

Citations

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