Discusses research issues related to using cognitive learning and instructional theory to design technology-based learning environments such as hypertext and hypermedia. A "Theory-to-Design" framework is described, and the framework is then used to analyze theoretical and design issues raised in a hypermedia research project. (Contains…

Reviews the use of spatial data and information technology by environmental managers and emergency responders. Discussion includes environmental legislation, the Toxic Chemical Release Inventory (TRI) database, public access to environmental information, information standardization problems, emergency response software development and a case study…