TS/MP Pathsend and Server Programming Manual (G06.24+, H06.03+)

Glossary
NonStop TS/MP Pathsend and Server Programming Manual–132500
Glossary-5
cool start
cool start. The operation that restarts a PATHMON environment, using the information in an
existing PATHMON configuration file (PATHCTL file). The PATHMON environment
must have been 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.
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.
Data Definition Language (DDL). (1) The set of data definition statements within the
Structured Query Language (SQL). (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 its data values are accurate, valid, and
consistent according to rules established for changing the database. See also database
consistency.
DBCS. See double-byte character set (DBCS).
DDL. See Data Definition Language (DDL).
deadlock. (1) A situation in which two processes cannot proceed because each is waiting for
a reply from the other. (2) A situation in which two transactions cannot proceed because
each is waiting for the other to release a lock.
dedicated device. A term formerly used for a terminal or other input/output device controlled
by a configured TERM object, so that a Pathway application always ran on that device
without having to be started from PATHCOM with a RUN PROGRAM command. (No
new term replaces this term; instead, the manual text now refers to such devices as those
associated with configured TERM objects.) See also nondedicated device and
configured TERM object.
default value. The value that the system uses for a particular attribute or parameter when a
value has not been supplied by the user.