SACM: Semantic agenda control model

摘要

Current KBS, that handle large amounts of information from different sources and have different representation formalisms, are structured as less complex modules that process a single source of knowledge and have a single representation formalism, instead of as a single knowledge base that would be unprocessable. The organization and cooperation between the different modules, that is, the system control structure, is crucial for achieving the goal in KBS operation, where the agenda and blackboard models are the control architectures best suited for managing this control.In this paper, we present a new agenda architecture that deals with independent tasks and also takes into account the result of the execution of earlier tasks to decide on whether or not a new task would be added to the agenda, functions that are not contemplated by the current agenda system. This new agenda structure has made it possible to define an object-oriented KBS control model with independent components to specify the agenda itself, the tasks and the justifications, thus providing a robust, flexible, reusable, extendible and generic control structure, making for easy and efficient implementation of applications with complex control.As an example of this, a vocational guidance expert system (HAMLET), is presented which was implemented with this model. 1997 Elsevier Science Ltd