Skip to main content Skip to main navigation


FEAT-Rep: Representing Features in CAD/CAM

Christoph Klauck; Ansgar Bernardi; Ralf Legleitner
DFKI, DFKI Research Reports (RR), Vol. 91-20, 1991.


When CAD/CAM experts view a workpiece, they perceive it in terms of their own expertise. These terms, called features, which are build upon a syntax (geometry) and a semantic (e.g. skeletal plans in manufacturing or functional relations in design), provide an abstraction mechanism to facilitate the creation, manufacturing and analysis of workpieces. Our goal is to enable experts to represent their own feature-language via a feature-grammar in the computer to build feature-based systems e.g. CAPP systems. The application of formal language terminology to the feature definitions facilitates the use of well-known formal language methods in conjunction with our flexible knowledge representation formalism FEAT-REP which will be presented in this paper.