NetBatch Management Programming Manual

Glossary
NetBatch Management Programming Manual—522462-003
Glossary-4
definition files
definition files. A set of files containing declarations for use in applications that call SPI
procedures. SPI has a standard definition file for DDL and one for each programming
language supporting SPI. The latter files are derived from the DDL definition file.
Similarly, each subsystem with a token-oriented programmatic interface has one
definition file for DDL and one for each programming language. Some subsystems
such as data communications subsystems have extra, shared definition files. See also
SPI standard definitions; EMS standard definitions; subsystem definitions.
dependency. A relationship between two jobs that prevents one of the jobs (the dependent
job) from executing before the other job (the master job) releases it. See also
dependent job; master job.
Distributed Systems Management (DSM). Software tools that aid management of
NonStop S-series systems and Expand networks. These tools include SPI, EMS,
Subsystem Control Facility (SCF), Distributed Name Service (DNS), ViewPoint console
application, DSM Template Services, and token-oriented programmatic interfaces to
the management processes for various NonStop subsystems, as well as various tools
that provide management services and help in the development of management
applications.
dependent job. A job with the WAITON attribute. Execution of such a job depends on its
release by each job specified by the attribute. See also dependency; master job.
distribution subvolume (DSV). See DSV.
distributor. An EMS process that distributes event messages from event logs to requesting
management applications, to Guardian console message destinations, to a collector on
another node, or to printers, devices, or files. See also consumer distributor; forwarding
distributor; printing distributor.
downward compatibility. The ability of a requester to operate properly with a server of a
lower revision level. In this case, the requester is downward-compatible with the server,
and the server is upward-compatible with the requester. See also upward compatibility.
DSM Template Services. A software facility that is used to produce display text from
tokenized SPI messages. This facility is used most commonly to generate operator
console messages from EMS event messages, but it also can be used to generate
labels from SPI token values.
DSV. A subvolume containing product files restored from a site update tape (SUT).
EMS. A software facility providing event-message collection, logging, and distribution
facilities for the NonStop OS. It provides for different descriptions of events for people
and for programs, lets an operator or application select conveniently from event-
message data, and allows for flexible distribution of event messages in a system or
network. It has programmatic interfaces based on SPI for both event reporting and
event retrieval. See event message.