Modelling Products


Technical systems can, beside usual master data, contain several linked structures:


The function structure describes what the product will be able to do. Here are represented technical tasks (functions), which the product must fulfill. Each function comes from a function master from the knowledge bases, can be parameterized and affects the constructive structure and the production process. Example: the brake function in a passenger car causes: the brake unit, all hydraulic tubes, brake cylinders, necessary electronics, as well as all the assembly operations necessary for it.

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The constructive structure describes how the product is built. It consists of various components, constructive groups, parts and also manufacturing characteristics such as drilling, thread, thermal treatment, etc... Between these components exist several relations like: correspondence, geometrical positions, measure dependence and so on. Components are able to generate the production processes.


The production process describes how the product is manufactured. It consists of a hierarchy of operations and parts processes with technical characteristics, times and necessary resources. The operations have sequential relations and are able to generate the cost elements.


The cost structure describes how much the product costs, and why. It consists to arrange a list of cost elements according to cost categories, operations, components and functions.


The representation structure describes the appearance of the product. It contains designs, 3-D models etc.


Other structures can be also inserted as for example: Supply structure, effect structure, etc.