From Overview of the TangoInteractive System Tango Tutorial San Diego MRA -- June 26 27 98 Datemod;June 18 98. byTangoInteractive Team
A blueprint for a truly successful collaboratory system does not exist. Hence:
Need an extensible system with very few limitations.
System must not define application specific protocols, application programming language, or limit in whatever way functionality of collaboratory applications
The essence of each collaboratory function must be defined by application and by application only