Asynchronous vs. Synchronous
As primary Web function is asynchronous information publishing, Web-based collaboratories inherently link two models
- Both modes focus on the basic concept of a “shared object”
- Both modes can share presentation tools
- Synchronous mode may create or persistently enhance/modify shared objects
Web database linkage technology (based on JDBC/ Enterprise JavaBeans) promotes complex asynchronous collaboration by exposing rich data models of industrial-strength relational and OO DBMS’s
Need Both! Tango can be linked to Oracle, Lotus Notes and similar database systems -- XML is a powerful interface for such linkage
- Tango offers “guided tour” sampling a large asynchronous web site, CDROM, database