Z39.50 History
Z39.50 (1988)
- NISO work with roots in OSI work
- "an unimplementable abomination which should never have been adopted"
- "Inspired" WAIS (which was not interoperable)
Z39.50 (1992)
- Implementation experience
- OSI now regarded as failure
Z39.50 (version 3)
- Accepted as ISO standard in 1996 ISO (23950)
- Implemented using TCP/IP
- Toolkits, profiles, etc now available
Taken from Clifford Lynch's article at http://hosted.ukoln.ac.uk/mirrored/lis-journals/dlib/dlib/dlib/april97/04contents.html