OMG adopted the CORBA 1.0 specification
in late 1991. This included no CORBA Services or CORBA
Facilities, nor did OMG release a reference implementation. By mid-1993, the first CORBA-conformant
ORBs
were available; by late 1993, the first CORBA Services were specified by OMG. A partial list of vendors
who
are currently selling or developing CORBA-conformant ORBs includes:
DEC
Expersoft
HP
IBM
IONA
Technologies
Postmodern
Computing
SunSoft
At this time, OMG has specified
only nine of the CORBA Services and none of the CORBA Facilities shown
in Figure 3. Furthermore, few implementations of the CORBA Services that have been specified are available
yet. Nonetheless, several large end-user organizations are prototyping elements of their next-generation,
enterprise-wide information systems using CORBA.
1.Introduction
