  In this paper, we describe the Rich Representation Language (RRL) which is
used in the NECA system. The NECA system generates interactions between two or
more animated characters. The RRL is an XML compliant framework for
representing the information that is exchanged at the interfaces between the
various NECA system modules. The full XML Schemas for the RRL are available at
http://www.ai.univie.ac.at/NECA/RRL
