The research group systems analysis of the institute for computer science develops tools for the specification language SDL. Specification and Description Language standardized by the ITU-T (Z.100) The SITE tools supply an open development environment and analysis components for SDL with various extensions, e.g. the combination with ASN.1 or IDL. All components are mostly individually executable programs. This permits the... preview: http://www2.informatik.hu-berlin.de/SITE/ 10/11/2006