Open Network Computing (ONC) is the Sun architecture, with 
third party alliances providing the missing pieces.  Sun's 
RPC is licensed by more than 300 companies, including DEC, 
IBM, and Apple Computer.  It is a lean, efficient  RPC that 
is particularly effective for installations not requiring 
WAN support.  Transport Independent Remote Procedure
Calls (TI-RPC) were co-developed by Sun and AT&T.  TI-RPC 
runs independent of the underlying network transport, 
allowing applications to run unmodified over multiple 
transport protocols including NetWare,PCNFS, AIX/6000, 
Solaris, UNIX/SVR4, AIX/ESA.  NetWise developed the
TI-RPC Application Toolkit source code generation 
technology.