ABSTRACT
Adoption of CAD (Computer Aided Design) in
the building industry has so far focused mainly on
replacing drawing lines on paper with drawing lines
on a computer. Although this is an improvement-
making changes is now much easier-it uses only
a fraction of the potential of CAD. Checking
whether a building complies with building codes
and other legislation, for instance, is still left up
to the architects and building committees. Adding
semantic information to the current CAD models
opens up (among others) the possibility of delegat-
ing this task to the computer.
