Abstract: A process, in which the original master diagram, which is used as the generic representation of the variation spectrum of the product and in which at least one symbol corresponds to every possible component of the product, is stored in the coded form in the memory of the information processing unit, is disclosed for the computerized generation of engineering data for products that are assembled according to individual specifications of the components. The conditions for the presence of components or of operating materials of components in an expression of the product that meets the specification are stored in the memory such that they are associated with the symbols of the original master diagram that correspond to the component or to an operating material of the component.

Abstract: Efficient expert systems for failure diagnosis often decisively increase the availability of a technical system by making available to a layman the knowledge of a diagnostic expert. The process attains the following objects: For each variant of a technical system, which is composed of modules, a knowledge base should be efficiently generated. An expert system should be able to quickly diagnose each variant. The process provides the following: In knowledge acquisition, knowledge modules are generated, namely a knowledge module for each type of real module, which occurs in at least one variant of the technical system. The knowledge module contains all diagnosis-relevant knowledge about the real module type in such a way that it is valid for each exemplar of the type.