OSI/MHS Gateway Programmatic Interface (GPI) Programming Guide
Glossary
OSI/MHS Gateway Programmatic Interface (GPI) Programming Guide—424822-001
Glossary-33
working subvolume
working subvolume. A subvolume that contains temporary files used by the OSI/MHS 
subsystem processes. There is a separate working subvolume for each process group. 
X.25 access method. See X25AM.
X.25 network. Any network or subnetwork linked using X.25 standards. X.25 standards are 
CCITT standards that define packet-switching carrier communication in the Network 
Layer over wide area networks (WANs).
X25AM (X.25 access method). A Compaq product that implements the services of the 
Network Layer and underlying layers for WANs. 
X.400. The CCITT standards of architecture and protocols for message handling systems.
X.400 message. Generic term that may refer to either a message, probe, or report. 
X.435. CCITT recommendation that describes how MHS is used to convey an EDI 
document.
XAPIA (X.400 Application Program Interface Association). An organization active in 
defining and promoting standard programming interfaces for use in X.400 networks.
$RECEIVE. The name of a special file through which a process receives and optionally 
replies to messages from other processes.










