SNAX/APC Application Programming Manual

SNAX/APC Application Programming Manual—138786
Glossary-1
Glossary
This glossary includes several definitions taken from the IBM Dictionary of Computing,
IBM Network Program Products: General Information, VTAM Programming for LU 6.2,
and SNA Type 2.1 Node Reference Please refer to these IBM manuals for IBM terms not
included in this glossary.
access method. An I/O process that allows applications running on a NonStop system to
communicate with other systems or devices. More generally, a protocol that provides
for orderly access, by systems and devices, to a communications medium.
advanced peer-to-peer networking (APPN). An extension of SNA that avoids dependence
on hierarchical relationships and eliminates the need for the intervention of an SSCP for
session initiation.
advanced program-to-program communication (APPC). Communication between
programs using SNA LU 6.2 protocol.
already-verified indicator. APPC Security: a specific value of the (MC-)AL-SECURITY-
TYPE field in the ALLOCATE or MC-ALLOCATE verb and in the ATTACH request.
When this field contains the letter “S”, it indicates that the verb or request does not
contain a password and that password validation is not required. For more information,
consult the SNAX/APC Application Programming Manual, Verb Definitions.
APCRUN. A TACL macro that establishes a sample Pathway environment to support the
application prototype simulator system.
APCTAP. See SNAX/APC Trace Analysis Program (APCTAP)
.
API. See application program interface (API)
.
APPC. See advanced program-to-program communication (APPC)
.
application program interface (API). A set of functions or procedures that are called by an
application program to communicate with other software components.
application prototype simulator (APS) system. A SNAX/APC tool used by software
developers to prototype and test application programs that use SNAX/APC.
APPN. See advanced peer-to-peer networking (APPN)
.
APPN network. An SNA network implementing advanced peer-to-peer networking.
APS. See application prototype simulator (APS) system
.
ATP. Application transaction program.
attribute. (1) For Subsystem Control Facility (SCF), a characteristic of an entity. For
example, two attributes of a process might be its program file and its user ID. An