Abstract: A process and an apparatus for automatically preparing a CAD design procedure document in which the CAD design procedure document is prepared by automatically converting CAD data into the design procedure document written in a natural language by means of a converter. The design procedure document includes elements which are written in a natural language, each element including a name of group to which the element belongs and its preparing step, and specific elements of the design procedure document are extracted. The extracted elements are extracted and rearranged together with the groups to which the elements belong and their preparing steps. The elements are displayed together with the groups and their preparing steps.

Abstract: A process and a system for generating a knowledge code based on a text described in a natural language and converting the generated knowledge code into the text. The process includes the steps of preparing a text described in a natural language by means of a text describing assistant system, converting the text into an intermediate knowledge code, converting the intermediate knowledge code into the knowledge code, and inputting the knowledge code into a knowledge-based system. The text describing assistant system describes the text using a text generation tool by inputting describing items in accordance with a previously provided text description procedure. The conversion of the knowledge code into the text is performed by converting the outputted knowledge code into the intermediate knowledge code using an intermediate knowledge code converting unit, and converting the intermediate knowledge code into the text using a document description generating unit.