| | What Is ArcGIS 9.1?ESRI ArcGIS is a comprehensive, integrated, scalable framework for implementing GIS for a single user or for many users on desktops, in servers, over the Web, and in the field. What is ArcGIS 9.1? provides a valuable introduction to the full ESRI ArcGIS framework and an overview of many important GIS concepts. Whether you are new to or are familiar... | | Disruptive Security Technologies with Mobile Code and Peer-to-Peer NetworksThe traditional fortress mentality of system security has proven ineffective to attacks by disruptive technologies. This is due largely to their reactive nature. Disruptive security technologies, on the other hand, are proactive in their approach to attacks. They allow systems to adapt to incoming threats, removing many of the vulnerabilities... |