Air Cleaner User Manual

Glossary of terms and abbreviations
This glossary defines MQSeries terms and
abbreviations used in this book. If you do not
find the term you are looking for, see the Index or
the IBM Dictionary of Computing, New York:
McGraw-Hill, 1994.
This glossary includes terms and definitions from
the American National Dictionary for Information
Systems, ANSI X3.172-1990, copyright 1990 by the
American National Standards Institute (ANSI).
Copies may be purchased from the American
National Standards Institute, 11 West 42 Street,
New York, New York 10036. Definitions are
identified by the symbol (A) after the definition.
A
abend reason code. A 4-byte hexadecimal code that
uniquely identifies a problem with MQSeries for
OS/390. A complete list of MQSeries for OS/390 abend
reason codes and their explanations is contained in the
MQSeries for OS/390 Messages and Codes manual.
active log. See recovery log.
adapter. An interface between MQSeries for OS/390
and TSO, IMS
™
, CICS, or batch address spaces. An
adapter is an attachment facility that enables
applications to access MQSeries services.
address space. The area of virtual storage available for
a particular job.
address space identifier (ASID). A unique,
system-assigned identifier for an address space.
administrator commands. MQSeries commands used
to manage MQSeries objects, such as queues, processes,
and namelists.
alert. A message sent to a management services focal
point in a network to identify a problem or an
impending problem.
alert monitor. In MQSeries for OS/390, a component
of the CICS adapter that handles unscheduled events
occurring as a result of connection requests to
MQSeries for OS/390.
alias queue object. An MQSeries object, the name of
which is an alias for a base queue defined to the local
queue manager. When an application or a queue
manager uses an alias queue, the alias name is resolved
and the requested operation is performed on the
associated base queue.
allied address space. See ally.
ally. An OS/390 address space that is connected to
MQSeries for OS/390.
alternate user security. A security feature in which the
authority of one user ID can be used by another user
ID; for example, to open an MQSeries object.
APAR. Authorized program analysis report.
application environment. The software facilities that
are accessible by an application program. On the
OS/390 platform, CICS and IMS are examples of
application environments.
application log. In Windows NT, a log that records
significant application events.
application queue. A queue used by an application.
archive log. See recovery log.
ASID. Address space identifier.
asynchronous messaging. A method of
communication between programs in which programs
place messages on message queues. With asynchronous
messaging, the sending program proceeds with its own
processing without waiting for a reply to its message.
Contrast with synchronous messaging.
attribute. One of a set of properties that defines the
characteristics of an MQSeries object.
authorization checks. Security checks that are
performed when a user tries to issue administration
commands against an object, for example to open a
queue or connect to a queue manager.
authorization file. In MQSeries on UNIX systems, a
file that provides security definitions for an object, a
class of objects, or all classes of objects.
authorization service. In MQSeries on UNIX systems,
MQSeries for OS/2 Warp, and MQSeries for Windows
NT, a service that provides authority checking of
commands and MQI calls for the user identifier
associated with the command or call.
authorized program analysis report (APAR). A report
of a problem caused by a suspected defect in a current,
unaltered release of a program.
B
backout. An operation that reverses all the changes
made during the current unit of recovery or unit of
© Copyright IBM Corp. 1993, 2000 291