TS/MP 2.5 System Management Manual

command terminal A terminal at which a system manager or operator enters commands for configuration and
management, such as the PATHCOM commands that configure and manage a PATHMON
environment. See also application terminal.
complex
instruction-set
computing (CISC)
A processor architecture based on a large instruction set, characterized by numerous addressing
modes, multicycle machine instructions, and many special-purpose instructions. See also reduced
instruction-set computing (RISC).
configuration The definition or alteration of characteristics of an object. See also object.
configuration
subscriber (CS)
A process that executes in each processor within a system and publishes critical ACS subsystem
configuration information to the other ACS subsystem processes.
configured TERM
object
A TERM object that is explicitly configured with an ADD TERM command. Such a TERM object
exists until it is explicitly deleted. Names of configured TERM objects begin with a letter. See also
temporary TERM object and TERM object.
consistency See database consistency.
context Information required by a server to process the current request in an exchange of multiple request
and reply messages: for example, identification of the last item processed. See also context-free
server and terminal context.
context-free server A server that does not retain any information about the processing of previous requests. A
context-free server accepts a single message from a requestor, performs the requested tasks, and
issues a single reply to respond to the requestor. After the reply message is issued, the server
retains no information, or context, that can be used in subsequent requests. Pathway servers must
be context-free. A contextfree server is analogous to a NonStop TUXEDO request/response server.
Tandem subsystems are context-free servers; therefore, management applications using the
Subsystem Programmatic Interface (SPI) to communicate with Tandem subsystems must pass back
context information in continuation requests. See also context and Subsystem Programmatic
Interface (SPI).
conversational
mode
A terminal operating mode in which data is read from the terminal and displayed on the terminal
screen one line at a time. See also block mode and intelligent mode.
cool start The operation that restarts a PATHMON environment, using the information in an existing
PATHMON configuration file (PATHCTL file). The PATHMON environment is previously started
with a cold start operation. See also cold start.
Crossref
cross-reference
generator
A Tandem software tool that produces a cross-referenced listing of selected identifiers such as
data variables, statement labels, or subprograms in an application program.
current working
directory
The OSS directory from which relative pathnames are resolved. See also OSS pathname and
relative pathname.
Customer
Information
Control System
(CICS)
An IBM transaction management system that provides concurrent online access to data files by
means of user-written application programs. CICS also includes facilities for building, using, and
maintaining databases.
Data Definition
Language (DDL)
The set of data definition statements within the Structured Query Language (SQL).1.
2. A Tandem product for defining data objects in Enscribe files and translating object definitions
into source code.
data integrity The condition of a database when the data values are accurate, valid, and consistent according
to rules established for changing the database. See also database consistency.
database
consistency
The state of a database in which items satisfy established criteria. For example, an account
balance must equal credits to the balance minus debits to the balance. When the database
satisfies these criteria, the database is considered to be consistent. In general, a database is
consistent when it is accurate and all changes generated by transactions are complete. Database
consistency is defined by the application, which establishes the values and relationships of
database fields and records.
database
management
system (DBMS)
A product, such as NonStop SQL/MP or Enscribe, that serves as the interface between a user or
program (for example, a Pathway server) and the database. Among its many functions, the DBMS
controls access to and organization of data within the database.
330 Glossary