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Open Host Interface Objects

Document Type Expired Internet-Draft (tn3270e WG)
Expired & archived
Authors Thomas Brawn , Stephen Gunn
Last updated 1999-04-14
RFC stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Additional resources
Stream WG state WG Document
Document shepherd (None)
IESG IESG state Expired
Consensus boilerplate Unknown
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


This draft addresses the need for a common, advanced, client programming interface to mainframe host data. Application developers, in particular third party application vendors, use API's provided by client emulator programs to write applications that access host data. Currently, the defacto standard HLLAPI is the interface most commonly provided by these programs and the one used by the third party application vendors. However, HLLAPI is plagued by the fact that it doesn't exploit modern programming techniques and is fragmented by multiple, proprietary implementations. Client vendors have, over the last couple of years, developed more advanced interfaces that exploit modern programming advances. However no effort has been put into standardizing these interfaces and application developers have been forced to either chose to stay with HLLAPI or perform costly re-implementation of their products to support each competing advanced client API.


Thomas Brawn
Stephen Gunn

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)