NET/MASTER Network Control Language (NCL) Programmer's Guide

Glossary
Glossary–36 106160 Tandem Computers Incorporated
TPL. See trace parameter list.
trace collector process. The NonStop NET/MASTER MS process that controls a running
trace and the writing of records to a trace file.
trace file. A file that collects and stores trace records.
trace ID. The unique number that NonStop NET/MASTER MS assigns to a trace when
the trace is started.
trace parameter. A value in the trace parameter list specifying the events to trace.
trace parameter list (TPL). A list associated with an OCS window that holds the current
trace parameter settings.
trace point. A NonStop NET/MASTER MS code position that can be traced.
trace record. An entry in a trace file: a message mapped by the map $MSG, text data, or
binary data.
Transaction Application Language (TAL). The Tandem language, which is used to write
systems software and routines, that supports transaction-oriented applications.
transmission header (TH). In SNA, routing and control information, optionally followed
by a basic information unit (BIU) or a BIU segment.
trigger life. A time interval within which an RMS message action rule is regarded by a
message group rule as having been triggered. The trigger life starts counting down
when a message triggers the message action rule.
truncation character. The character used to indicate the position at which a message is
truncated on an OCS window: a plus sign (+).
type conversion. How NCL automatically converts values from one type to another,
depending on context. There are two basic types: string and numeric. Numeric
includes the subtypes floating point, integral, and Boolean.
UANCL. See Utility Access NCL.
UDB. See user database.
UDB identifier. A unique identifier that NonStop NET/MASTER MS assigns to a user
database so that an NCL process can access the user database.
UDB pair. Two key-sequenced files that are treated as a single logical UDB in all UDB
operations. See also file pair.
UMS. See User ID Management Services.
UMS database. The database, maintained by UMS, that stores user ID definition
records.
unary operators. Operators that change the sign of a number. There are two unary
operators: plus (+) and minus (-).
unenumerated mapped data object variable. A mapped data object variable that stores raw
data only.