TOOLS INTRODUCED INTO ERDC MSRC -- C/C Tango Interactive Tango Interactive is a Java-baed web collaboratory developed by NPAC at Syracuse University (with initial funding from AF Rome Lab). It is implemented with standard Internet technologies and protocols, and runs inside an ordinary Netscape or Internet Explorer (in testing) browser window. Tango delivers real-time multimedia content in an authentic two-way interactive format. Tango was originally designed to suppport collaborative workgroups, though synchronous distance education and training, which can be thought of as a highly structured kind of collaboration, had become one of the key application areas of the system. The primary Tango window is called the Control Application (CA). From the CA, participants have access to many tools, including: o SharedBrowser, a special-purpose web browser window that "pushes" web documents onto remote client workstations. o Whiteboard, for interactive text and graphics display. o Several different kinds of chat tools. o BuenaVista, for two-way audio/video conferencing. Tango has been deployed for some time at the ERDC MSRC and at Jackson State University for use in joint Syracuse-Jackson State distance education work begun in Year 2. More recently, Tango Interactive has been used to deliver PET trainings, through installations at all four of the MSRCs and other sites as well. During Year 4, a substantial investment has been made in the Tango Interactive system to improve its user interface, increase security, and expand functionality towards a "virtual community" model. These efforts resulted in the release of Tango Interactive 2.0 in January 2000, with additional improvements in version 2.1 at the end of Year 4.