Don Simborg is the original creator of the Level 7 protocol that ultimately turned into HL7 version 2.
Don was involved in the development of minicumputer based departmental systems at Johns Hopkins, and did his programming work at APL. When he moved to UCSF in 1976, to work as its CIO, he had prior experience with the use of best-of-breed minicomputer based applications, and kew the people at APL. APL also worked with MITRE, who had experience with the use if back-end networks (LANs) and High Level Protocols (HLP).
Don decided to start using a LAN based network to connect his various best-of-breed applications, and developed the very first 'Level 7' protocol standard used in healthcare. He subsequently founded a company (Simborg Systems) which sold a LAN based solution, using an extended version of the original UCSF protocol.
See ringholm.com/docs/the_early_history_of_health_level_7_HL7.htm for a whitepaper about the early history of HL7 and its precursor protocols.
Recorded on May 7, 2014, in Haarlem, the Netherlands