PROBLEM TO BE SOLVED: To shorten design time while a final design with considerably few errors is generated. SOLUTION: A method for simultaneously realizing production and product technology has a process for generating a logic modeler 8 by specifying the element of a technology project, arranging it in logic sequence based on a technology function in terms of semantics, certifying the integrated meaning and the technology function of the element for communication between fields, collecting existed knowledge adapted to the element and the technology function, encoding knowledge in accordance with integrated meaning and programming a template 22 in sequence where the database 18 of existed knowledge is added and the operation process of the modeler by an engineer, which mutually operates with analysis, for requesting the checking of the initial input specification of design at the time of beginning, which becomes analysis by the modeler displaying the rule of collected knowledge or the violence of a restriction, and converging it to a progressed definition which can be approved in the function of the technology design in accordance with display.
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