The study of complex systems should be based on a systems-theoretic framework which requires both self-organizing and symbolic dimensions. An inclusive framework based on the notion of semiotics is advanced to build models capable of representing, as well as evolving in their environments, with...

This paper presents an analysis of trends in Internet security based on an investigation of 4,299 Internet security-related incidents reported to the CERT{reg_sign} Coordination Center (CERT{reg_sign}/CC) from 1989 through 1995. Prior to this research, knowledge of actual Internet security...

It is generally acknowledged that the size-class distribution of enterprises in a country is an important characteristic of its economy. The EU countries are increasingly co-operating and adjusting to each other's needs in order to achieve optimal joint output. However, country differences -at...