2001: ACADIA 314 Work-In-Progress, Part I Section 6 Fuzzy Modeling of Floor Plan Layout Alexander Koutamanis Delft University of Technology, The Netherlands Abstract Fuzzy modeling provides methods and techniques for qualifying and quantify- ing imprecise and uncertain information. The main advantages of fuzzy design representation are fluency, abstraction and continuity, at a level similar to that of analogue techniques, as well as the possibility of local autonomy, i.e. seg- mentation of a representation into self-regulating and cooperating components. The paper investigates the applicability of fuzziness to digital architectural sketching of floor plan layouts. Based on an analysis of the paradigmatic di- mension in analogue floor plan sketches three alternative forms are proposed: (1) Canonical objects with tolerances, (2) objects described by minimal and maximal values, and (3) point sets which decompose the form of an object into a number of discrete, autonomous particles that describe the object by their position and spatial or structural relationships. Keywords Representation, Sketching, Floor Plan, Fuzziness