Introduction to Data Management

Glossary
15873 Tandem Computers Incorporated Glossary-9
PATHWAY object. An entity that you can reference and control independently through
various commands to PATHWAY; any of the processes, definitions, or templates that
collectively make up a PATHWAY system. An object can be a PATHMON, TCP,
TERM, PROGRAM, SERVER, or the PATHWAY system itself.
PATHWAY programmatic interface. A set of programmatic commands that allow you to
write management application programs that communicate directly with PATHMON
for configuration and control operations. This interface is based upon the SPI portion
of the Distributed Systems Management (DSM) software.
PATHWAY system. A collection of processes, definitions, and templates that enable
PATHWAY to run and control the programs that make up a PATHWAY application
and the I/O devices used by those programs. A PATHWAY system can include one
PATHWAY application alone, or multiple applications. Conversely, a single
PATHWAY application can span multiple PATHWAY systems. Each PATHWAY
system is always monitored by its own unique PATHMON process.
PATHWAY transaction processing system. A set of software tools for developing,
configuring, and managing OLTP applications; provides the environment and
controls for executing those applications.
Primary database. The database on the primary system in a pair of systems that is
protected by RDF.
Primary key. In NonStop SQL, the column or columns that uniquely identify the rows
in a table. The value of the primary key must be unique for each row in the table.
Primary system. The system that supports the primary database and its applications, in
a pair of systems protected by RDF.
Process. A dynamically running program executing under control of the GUARDIAN
90 operating system. A user can run the same program on several separate occasions,
with each execution a unique process. Alternatively, several users can run the same
program concurrently on one or more CPUs, with each execution constituting a
unique process.
PROGRAM. In PATHWAY, a template for creating and starting a TERM for a device
that is not dedicated exclusively to a particular PATHWAY system. A PROGRAM
allows you to configure a screen program through which many nondedicated devices,
of one or more specified types, can access your PATHWAY application. Whenever a
particular device runs the screen program, the PROGRAM implicitly creates a TERM
for that device.
Program. A static group of instruction codes and initialized data residing in a file.
Programmatic SQL. The set of SQL statements that can be embedded in a host language
program; the application programming interface for NonStop SQL.
Project. In PATHMAKER, a framework for running an application on a Tandem
computer system. PATHMAKER provides the environment in which to complete the
project. Once a project exists, you can enter the project, work on it, or delete it.