Abstract
The question of creation of systems of support of adoption of administrative decisions on the basis of integration of formal (mathematical methods and a computer resource) and informal (mentality of a person) methods that make expert and virtual resource is considered. The description of an expert and virtual resource of the knowledge type which includes the knowledge base and the car of a logical conclusion is given. The ways of representation of knowledge are described, the prospects of use of productional rules or rules of substitution are introduced. The semantic description of basic components of an expert and virtual resource of the knowledge type with the use of ontologies and division of metadata on contextual and content is considered. The scheme of multialternative aggregation of components of an expert and virtual resource of the knowledge type is developed. The formalized procedure of interaction of users with a resource for making reasonable administrative decisions on the basis of optimizing models is offered.

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