In
COBOL, a combined condition that omits a common subject or a common subject
and common relational operator from a consecutive sequence of relational
conditions. For example, (A and B) or (A and C) can be abbreviated A
and (B or C).
abbreviated installation
A
process in which the verification and OS/400 error recovery part of
installation is done without restoring the saved version of the operating
system. Contrast with normal
installation.
ABM
See asynchronous
balanced mode (ABM).
ABME
See asynchronous
balanced mode extended (ABME).
abort
In data communications, a
function called by a sending primary, secondary, or combined station that
causes the recipient to discard and ignore all bit sequences transmitted by
the sender since the preceding flag sequences or to discard and ignore all
data transmitted by the sender since the previous
checkpoint.
absolute path name
A string of
characters used to refer to an object, starting at the highest level (or root)
of the directory hierarchy. The absolute path name must begin with a
slash (/), which indicates that the path begins at the root. Contrast
with relative path name. See also path
name.
absolute positional pattern
In REXX,
the part of a parsing template that allows a string to be split by the
specification of numeric positions. A positional pattern has no sign or
has an equal sign.
absolute time
A point on a time
scale.
absolute value
The magnitude of a
number.
abstract syntax
In OSI, a
definition of the data types and meaning of a collection of data that does not
include any specification of how the data is to be encoded. See also
abstract syntax notation one. Contrast with transfer
syntax.
Abstract Syntax Checker (ASC)
In OSI, a
utility program for OSI Communications Subsystem that processes user-specified
ASN.1 statements and generates (a) data structures in a user-selected
programming language that define the format of the data used to communicate
with peer application entities, and (b) the metatable that OSI Communications
Subsystem uses to encode and decode the data passed between application
entities.
abstract syntax notation one (ASN.1)
(1) In the
Distributed Computing Environment (DCE), a data representation scheme that
enables complicated types to be defined and enables values of these types to
be specified.
(2) In OSI, the
formal method adopted in ISO 8824 (CCITT X.209) for defining the format
and meaning of data. Users of the OSI presentation layer use
ASN.1 to define, in a system-independent way, the data to be exchanged
on an association. See also abstract
syntax.
Abstract Window Toolkit (AWT)
A Java
package that allows a Java applet to have a graphical interface that is
compatible with the platform that the applet is running
on.
abuttal operator
In REXX, when
two terms in an expression are adjacent and are not separated by an operator,
they are said to abut. The effect of this operation is that the two
terms are concatenated without a blank.
accelerator
A function key
displayed next to a pull-down menu choice that starts the application-defined
function.
accept calls
An inbound
X.25 DTE attribute that determines whether or not the local node
accepts a call from an adjacent
node.
accept reverse charging
An
inbound X.25 DTE attribute that determines whether or not the local
node pays for a call from an adjacent node. See also reverse
charging.
access
(1) To read.
(2) The ability to use or
read.
access code
In OfficeVision, a 1-
to 4-digit number assigned to documents and folders, which gives those users
authorized to the access code use authority to the documents and
folders.
access control
In computer
security, assurance that a resource has authorization to a requested data or
service.
access control list (ACL)
(1) In the
Distributed Computing Environment (DCE), data that controls access to a
protected object. An access control list specifies the privilege
attributes needed to access the object and the permissions that may be
granted, with respect to the protected object, to principals that possess such
privilege attributes.
(2) In the
Lightweight Directory Access Protocol (LDAP), data that a directory server
uses to control the authorization that users have to add and delete directory
objects and to read, write, search, and compare directory
attributes.
access control list facility
In the
Distributed Computing Environment (DCE), a Security Service feature that
checks a principal's access to an object. This facility determines
access rights by comparing the principal's privileges to entries in an
access control list (ACL) of an object.
access control list (ACL) group
In the Lightweight
Directory Access Protocol (LDAP), a group of users who have the same access
privileges. Changing the privileges of an ACL group changes the
privileges of its members.
accessible
In the Distributed
Computing Environment (DCE), pertaining to an object whose client possesses a
valid designator or handle.
access intent
In Client Access, a
value passed from a programmable work station (PWS) to an AS/400 system each
time a PWS user opens a file on the AS/400 system. The access intent
tells the AS/400 system if the PWS will use the file as a read-only file (read
access intent), as a write-only file (write access intent), or as a read/write
file (read/write access intent).
access key
In the Application
Development Manager feature of the Application Development ToolSet licensed
program, an identifier that shows which user currently has exclusive update
authority to a part. An access key is set when a user checks out a
part. This key prevents one user from overwriting the changes made by
another user.
access method
A technique that is
used to read a record from, or to write a record into, a file. Access
can be sequential (records are processed one after another in the order in
which they appear in the file), it can be random (the individual records can
be processed in any order), or it can be dynamic (records can be processed
sequentially or randomly, depending on the specific
request).
access path
(1) The order in which
records in one or more database files are organized for processing by a
program. See arrival sequence access path and keyed
sequence access path.
(2) In DB2 UDB for AS/400, the
path used to locate data specified in SQL statements. An access path
can be indexed, sequential, or a combination of both.
access path journaling
A method
of recording changes to an access path as changes are made to the data in the
database file so that the access path can be recovered automatically by the
system. See also system-managed access-path
protection.
access permission
The object
authority to a high-performance file system
file.
access plan
In DB2 UDB for
AS/400, the control structure produced during compile time that is used to
process SQL statements encountered when the program is
run.
access point
(1) In the Distributed
Computing Environment (DCE), the point at which an abstract service is
obtained, or a connection between a directory user agent (DUA) and a directory
system agent (DSA).
(2) A cluster node that is
being used as the primary source for replicated objects and as the primary
source for initiating changes to the object.
access right
In the Distributed
Computing Environment (DCE), a synonym for
permission.
account
In the Distributed
Computing Environment (DCE), data in the Registry database that allows a
principal to log in. It is a registry object that relates to a
principal.
accountability
See
nonrepudiation.
accounting code
A 15-character
field, assigned to a job by the system when it is processed by the system,
that is used to collect statistics for the system resources used for that job
when job accounting is active.
accounting entry
A journal entry
that contains statistics of system resources used for job
accounting.
accounting level
A system value
identifying the type of data to be recorded when job accounting is
active.
accounting segment
The period of
time during which statistics are gathered, beginning when the job starts or
when the job's accounting code is changed, and ending when the job ends or
when the job's accounting code is next changed.
ACD
See automatic call
distribution (ACD).
ACD group
In telephony, the set
of multiple agents assigned to process incoming telephone calls that are
directed to the same dialed number. The routing of incoming calls to
one of the agents in the ACD group is based on such properties as availability
of the agent and length of time since the agent completed the last incoming
call.
ACD pilot number
In telephony,
the common telephone number that calling parties can dial to route calls to
one of multiple agents.
ACF
See attribute
configuration file (ACF).
ACK
See acknowledgment (ACK)
character.
acknowledged service
In
communications, the service that provides for the establishment of a data link
level connection. Acknowledged service provides for functions such as
sequencing, flow control, and error recovery. SNA requires the use of
acknowledged services. Contrast with unacknowledged
service.
acknowledgment
In BSC, a positive
response to a data transmission.
acknowledgment (ACK) character
(1) The BSC
transmission control character that is sent as a positive response to a data
transmission. See also ACK0 and ACK1.
(2) In RJE, a
transmission control character sequence that is sent as a positive
response to a data transmission.
ACK0
In BSC, the even-numbered,
positive acknowledgment character, which indicates that text was received
without transmission errors. See acknowledgment (ACK)
character.
ACK1
In BSC, the odd-numbered,
positive acknowledgment character, which indicates that text was received
without transmission errors. See acknowledgment (ACK)
character.
ACL
See access control list
(ACL).
acoustic panel
A panel bonded
with a material to reduce operating noise from the devices in the
rack.
acquire
To assign a display
station or session to a program.
acquire-program-device operation
An
operation that makes a program device available for input or output
operations. Contrast with release-program-device
operation.
ACRI
See additional
coding-related required information (ACRI).
ACSE
See association control
service element (ACSE).
ACSE association
In OSI, an
association that uses the services provided by association control service
elements.
action
What occurs as a result of
an event. In VisualAge RPG, an action subroutine is run if it is
associated with an event.
action item
In the OfficeVision
program, a piece of mail that requires an action or an answer by a due date,
but is not yet answered.
action services
In OSI, callable
services that cause OSI Communications Subsystem to take an action, such as a
data transfer. Contrast with extract services and set
services.
actions profile
In VisualAge RPG,
a collection of actions that can be associated with a specific
project.
action subroutine
In VisualAge
RPG, logic written by the user to respond to a specific
event.
activate
(1) To allocate static
storage for a program. In the OS/400 operating system, this is
synonymous with the phrase "to load a program." Contrast with
bind.
(2) To make a resource ready to
perform its function.
activation
A processing step that
prepares a program to be run. Activation can include allocating and
initializing static storage for programs in a job and completing some portions
of binding.
activation group
A substructure
of a job in which Integrated Language Environment (ILE) programs and service
programs are activated. This substructure contains the resources
necessary to run the program. These resources include: static and
global program variables, dynamic storage, temporary data management
resources, certain types of exception handlers and ending
procedures.
activation group number
A 4-byte
number that uniquely identifies an activation group within the
job.
active
The state of a resource
when it has been activated and is operational. In a multitasking
environment, the active session is the one in the foreground of the
display.
active attack
In computer
security, an assault on a network that involves an intruder who trys to break
into or take over a computer that belongs to someone else.
Spoofing is an example of an active attack.
active context handle
In DCE
Remote Procedure Call (RPC) applications, a context handle that the RPC has
set to a non-null value and has passed back to the calling program. The
calling program supplies the active context handle in any future calls to
procedures that share the same client context. See client
context and context handle.
active file
A file on a tape or
diskette volume with an expiration date later than the system
date.
active group job
A group job that
was not suspended by the Transfer to Group Job (TFRGRPJOB)
command.
active open
In TCP/IP, the state
of a connection that is actively providing a
service.
active record
An active subfile
record or any record format that is currently shown on a display. See
also active subfile record. Contrast with inactive
record.
active sort table
A
system-supplied sort table that contains the collating sequences for all
defined double-byte characters in a double-byte character set. These
tables are maintained by the character generator utility function of the
Application Development ToolSet licensed
program.
active subfile
A subfile in which
a write operation was issued to the subfile record format or to the subfile
control record format with the DDS keyword SFLINZ in
effect.
active subfile record
A record
that was added to the subfile by a write operation, or a record that was
initialized by the DDS keyword SFLINZ. Contrast with inactive
subfile record.
active window
The window with
which a user is currently interacting. This is the window that receives
keyboard input.
activity
(1) In OSI, a logical unit
of work into which peer application entities can separate the data that they
exchange. See also activity management.
(2) In System Manager, a change
management operation initiated by the central site, for example, sending an
object, deleting a file, and installing a PTF. An activity is a single
stop within a change request.
activity condition
In System
Manager, the criteria that must be met before the activity can start
running. An activity can be conditioned on the results of other
activities.
activity level
A characteristic
of a subsystem that specifies the maximum number of jobs that can compete at
the same time for the processing
unit.
activity management
In OSI, a set
of services that the session layer provides to enable peer application
entities to manage their activities. See also
activity.
activity trail
A record of
operations that is used to identify which activities were done, the order in
which they were done, and who performed them.
ACTLU
In SNA, a command used to
start a session on a logical unit.
ACTPU
In SNA, a command used to
start a session on a physical unit.
actual decimal point
In COBOL,
the physical representation of the decimal point position in data using either
of the decimal point characters (. or ,). The actual decimal
point appears in printed reports and requires a position in storage.
Contrast with assumed decimal point.
actuator
(1) The device within an
auxiliary storage device that moves the read/write heads.
(2) A device that causes mechanical
motion.
adapted word processor
An editor
that provides a basic level of function to edit OfficeVision documents.
It allows the user to edit documents on an AS/400 system where the editing
functions provided by the work station controller are not
available.
adapter
(1) A part that electrically
or physically connects a device to a computer or to another device.
(2) A device for attaching parts,
for example, parts having different diameters or
voltages.
adapter card
The electrical
circuits on a logic card that connect one device to another or to a
computer.
adapter handler
In Client Access,
a program that controls the operation of a communications adapter. For
example, the twinaxial adapter handler controls the operation of a twinaxial
adapter that is used to connect a personal computer to an AS/400 system for
Client Access functions.
adapter support software
The
software used to operate adapters in a PC system and provide a common
interface to application programs. Adapter support software also means
any of the following or their equivalent:
The adapter support software provided with the Token-Ring Network PC
Adapter
The adapter support software provided with the Local Area Network Support
Program
The adapter support software provided with Network Transport Services/2
adaptive pacing
In SNA, a form of
session-level pacing in which session components exchange pacing windows that
may vary in size during the course of a session. This allows
transmission within a network to adapt dynamically to variations in the
availability and the demand of buffers on a session-by-session basis.
Session-level pacing occurs within independent stages along the session path
according to local congestion at the intermediate
nodes.
add authority
A data authority
that allows the user to add entries to an object; for example, add job
entries to a job queue or add records to a file. Contrast with
delete authority. See also execute authority,
read authority, and update
authority.
add item authority
In the
OfficeVision program, an authority that allows a user to work with another
user's calendar to display, add, or change items on the
calendar.
additional coding-related required information (ACRI)
A
specification that is required by an encoding scheme to complete its
definition, which extends beyond the character set and code page
elements. For example, additional coding-related required information
might be the ranges for valid first bytes of double-byte code points in a PC
mixed-byte coded character set.
address
(1) The location in the
storage of a computer where particular data is stored. Also, the
numbers that identify such a location.
(2) The unique code assigned to each
device or system connected to a network. See also Internet
Protocol (IP) addressor ATM address.
(3) In the Distributed Computing
Environment (DCE), an unambiguous name, label, or number that identifies the
location of a particular entity or service. See presentation
address.
(4) The second part of a two-part
user identification used to send distributions. See also user
ID/address.
address family
In the Distributed
Computing Environment (DCE), a set of related communications protocols that
use a common addressing mechanism to identify end points; for example,
the U.S. Department of Defense Internet Protocols.
Synonymous with protocol family.
addressing
(1) In data
communications, the way that the sending or control station selects the
station to which it is sending data.
(2) A method of identifying
storage locations.
address pool
In data
communications, a collection of multipoint addresses. Each address can
be associated with an individual communications
session.
Address Resolution Protocol (ARP)
In
TCP/IP, a protocol that dynamically maps between internet and baseband-adapter
addresses on a local area network.
address switches
Switches on a
device that the user sets to represent the address of that
device.
address type
In data
communications, a value used to define the format and contents of an address
field. Address types are associated with the originator address, the
recipient address, and the reply-to address information. The address
types supported by a system are defined when the mail server framework is
configured. The value associated with an address type must be
unique.
ADEM
See advanced data
communications for stores emulation
(ADEM).
adjacent destination node
In OSI, a
destination node that is also an adjacent node--that is, attached to the
same subnetwork as the local node. See also adjacent node
and destination node. Contrast with nonadjacent
destination node and relay open
system.
adjacent network entity title (ANET)
In OSI,
the network entity title of an adjacent node. See also network
entity title.
adjacent network entity title nickname
In OSI,
a 1 to 8 character name for the network entity title of an adjacent
node. This nickname uniquely identifies a node. See also
adjacent network entity title.
adjacent node
In OSI, a node that
is attached to the same subnetwork as the local node. An adjacent node
can be either a destination node or a relay node.
adjust
To move text so that it
fits between the defined left and right margins or between the first and last
typing lines.
ADMD
See administration
management domain (ADMD).
administration
In Client Access,
the action of setting up a Client Access configuration and optionally creating
installation diskettes and installing Client Access for a user or a group of
users.
administration domain
In the
Distributed Computing Environment (DCE), a domain defined by the boundaries of
a cell.
administration management domain (ADMD)
In OSI
X.400, a public organization that handles a management
domain.
administration monitor
In OfficeVision, a
text search function, which runs as a batch job, that automatically updates
and reorganizes the text search index based on administrative values selected
by the user.
Administrative Domain
A
collection of hosts and routers, and the interconnecting networks, that are
managed by a single administrative
authority.
Administrative Facility
In OSI,
an interactive, menu-driven utility provided by OSI Communications Subsystem
with which users define and maintain their network layout, installed
protocols, available application entities, and other information used by OSI
Communications Subsystem.
administrative repository
A
database that contains configuration, problem, change, and inventory
information needed to administer the information system. The repository
can be used to perform the functions of configuration management, problem
management, and change management.
adopted authority
Authority given
to the user by the object while the object is running. The object must
be created with owner authority. These object types can have adopted
authority: program, service program, and SQL
package.
ADTS Client Server
See
Application Development ToolSet Client Server (ADTS
CS).
ADTS CS
See Application
Development ToolSet Client Server (ADTS
CS).
advanced assistance level
The type
of displays that provide the same functions as the intermediate assistance
level. However, the displays contain as much information as possible by
not displaying the allowed function keys and
options.
advanced data communications for stores emulation (ADEM)
A
function of the Point-of-Sale Utility licensed program that allows the AS/400
system to appear to the host command processor (HCP) in a point-of-sale system
as if the AS/400 system were the System/370 host
computer.
Advanced DBCS Printer Support
The IBM
licensed program that provides support for printers capable of printing
double-byte character sets (DBCS).
Advanced Function Printing (AFP)
Pertaining
to the ability of programs to use the all-points-addressable concept to print
text and images on a printer.
Advanced Function Printing data stream (AFPDS)
In AFP
support, the printer data stream used for printing Advanced Function Printing
data. The AFPDS includes composed text, page segments, electronic
overlays, form definitions, and fonts that are downloaded from the AS/400
system to the printer.
Advanced Function Printing DBCS Fonts
The IBM
licensed program that provides a set of fonts for the AS/400 system to use
with DBCS printers and Advanced Function Printing support. See also
Advanced Function Printing (AFP) and
font.
Advanced Function Printing Fonts
The IBM
licensed program that provides a set of fonts for the AS/400 system to use
with many IBM printers and Advanced Function Printing support. See also
Advanced Function Printing (AFP) and
font.
Advanced Function Printing Utilities (AFPU)
The IBM
licensed program that provides AFP functions on the AS/400 system. It
is composed of the following menu-driven interactive utilities: overlay
utility, print format utility, and resource management
utility.
Advanced Peer-to-Peer Networking (APPN)
Pertaining
to data communications support that routes data in a network between two or
more APPC systems that do not need to be directly
connected.
advanced printer function (APF)
A function
of the Application Development ToolSet licensed program that allows a user to
design symbols, logos, special characters, large characters, and forms
tailored to a business or data processing application. The function
supports printing of any design on the 5224 or 5225 dot matrix
printer.
advanced program-to-program communications (APPC)
Data
communications support that allows programs on an AS/400 system to communicate
with programs on other systems having compatible communications
support. APPC on the AS/400 system provides an application programming
interface to the SNA LU type 6.2 and node type 2.1
architectures.
advisor
(1) An application that
provides a recommendation or suggestion that is based on input from the
user. Advisors do not perform functions or change system
values.
(2) In Performance Tools, a tool
used to analyze data collected by the performance monitor function of the
operating system. The advisor analyzes a collection of performance data
and produces a list of conclusions and recommendations to improve system
performance.
AE
See
application entity (AE).
AE title
In OSI, a synonym for
application entity title.
AFP
See Advanced Function
Printing (AFP).
AFP DBCS Fonts
See Advanced
Function Printing DBCS Fonts.
AFPDS
See Advanced Function
Printing data stream (AFPDS).
AFP Fonts
See Advanced
Function Printing Fonts.
AFP resources
The form
definitions, page definitions, fonts, overlays (electronic forms), and page
segments (graphic images). With the PrintManager program, resources can
either exist in a system library, or be placed inline with a print job as the
job is written to the spool.
AFPU
See Advanced Function
Printing Utilities (AFPU).
AFP Utilities
See Advanced
Function Printing Utilities (AFPU).
after-image
The contents of the
physical file record after the data was changed by a write or an update
operation. Contrast with
before-image.
agent
(1) A process that can report
events to--and process commands issued by--its managing
processes.
(2) In System Manager, a role that
systems can assume when dealing with managed objects. Systems assume
the role of an agent only for the duration of an operation. A system
assuming an agent role receives commands from, and sends notifications to,
SystemView managers.
(3) In telephony, a customer service
person whose job is to handle incoming or outgoing telephone calls; for
example, an agent in an ACD group.
(4) A function that represents a
requester to a server. An agent can be present in both a source and a
target system.
(5) In the two-phase commit protocol,
an agent is a node at the bottom of the transaction program network
hierarchy.
(6) A program that gathers information
or processes a task.
aggregate line speed
The maximum
possible speed that data can be transmitted using a communications
controller. The speed is determined using the sum of the speeds of the
communications lines attached to the communications
controller.
aggregate type
A user-defined
data type that combines basic types, such as char, short, and float, into a
more complex type, such as structs, arrays, strings, or
sequences.
AID
See attention identifier
(AID) or automatic initiation descriptor
(AID).
AID key
See attention
identifier (AID) key.
alert
(1) A message sent to a
management services focal point in a network to identify a problem or an
impending problem.
(2) In System Manager, a Systems
Network Architecture (SNA) message that is sent from one system within a
communications network to a central network management site called the problem
management focal point. An alert allows problems detected within the
network to be reported to a network operator at the focal
point.
alert controller description
A
controller description that defines the system to which alerts will be sent on
an alert controller session. See also alert controller
session.
alert controller session
A type
of SSCP-PU session on which alerts can be sent to a system that is designated
as an alert focal point.
alert description
Information in
an alert table that defines the contents of a Systems Network Architecture
(SNA) alert for a particular message ID.
alert filter
A filter that is
used to route and process Systems Network Architecture (SNA) alerts in a
network and automates operations for local alerts or received alerts within a
network.
alert focal point
The system in a
network that receives and processes (logs, displays, and optionally forwards)
alerts. An alert focal point is a subset of a problem management focal
point.
alert table
An object consisting
of alert descriptions that define the contents of a Systems Network
Architecture (SNA) alert for particular error conditions. The
system-recognized identifier for the object type is
*ALRTBL.
algorithm
A finite set of
well-defined rules for the solution of a problem in a finite number of
steps. See also cryptographic
algorithm.
alias
(1) An alternative name that
can be used instead of the primary name.
(2) The user name for a server in an
implementation repository.
(3) In IDDU and DDS, an alternative
name for a field in a record format description. An alias is used by
some high-level programming languages as an alternative name for the
field.
(4) In LAN Server, a nickname for a
resource on a network server.
(5) In Client Access, a name used by
Communications Manager/2 to represent the name of a device defined to emulate
a display station or printer.
(6) In Client Access for DOS with
Extended Memory, a name used to represent a network system name (both a
network ID and system name).
(7) In an internet, a name assigned to
a server that makes the server independent of the name of its host
system. The alias must be defined in the domain name
server.
aliasing
(1) In the Distributed
Computing Environment (DCE), pertaining to the pointing of two pointers of the
same operation at the same storage.
(2) In a TCP/IP Simple Mail
Transfer Protocol (SMTP) application, a process used to convert SNA
distribution services (SNADS) names in the origin and destination fields of a
distribution to SMTP names. System and personal are the two types of
aliasing on the AS/400 system.
(3) In TCP/IP host table
processing, a process used to convert internet addresses to host names or host
names to internet addresses.
alias name
In the Distributed
Computing Environment (DCE), an optional alternate for a principal's
primary name. It shares the same UUID with the primary
name.
alias queue object
An MQSeries
object, the name of which is an alias for another queue name. When an
application or a queue manager uses an alias queue, the alias name is resolved
and the requested operation is performed on the queue with the resolved
name.
all authority
An object authority
that allows the user to perform all operations on the object except those
limited to the owner or controlled by authorization list management
authority. The user can control the object's existence, specify the
security for the object, and change the object. Contrast with
exclude authority.
alliance
A long-term partnership
formed between IBM and one or more other companies to develop and deliver a
technology, product, or service. The participants in an alliance share
the risks, the benefits, the revenue, and the
expenses.
all object authority
A special
authority that allows users to use all system resources without having
specific authority to the resources. See also save system
authority, job control authority, security administrator
authority, service authority, spool control
authority, system configuration authority, and user
class.
allocate
To reserve a resource
for use in performing a specific task. Contrast with
deallocate.
allocated length
In DDS, for
variable-length character fields, the length that indicates the portion of the
variable length field that should be reserved in the fixed portion of the
physical file member.
all-points-addressable
In AFP
support, pertaining to the capability to address, refer to, and position text,
overlays, and images at any defined point on the printable area of the
paper.
alphabetic character
(1) Any one of
the letters A through Z or a through z or one of the characters #, $, or
@.
(2) In COBOL, a
character that is one of the 26 uppercase letters of the alphabet, or a
space.
(3) In DDS and IDDU,
any one of the uppercase letters A through Z or one of the characters #, $, or
@.
alphabet-name
In COBOL, a
user-defined word, in the SPECIAL-NAMES paragraph of the Environment Division,
that names a character set or collating
sequence.
alphanumeric
(1) Pertaining to the
letters A through Z or a through z; numbers 0-9; and special symbols
$, #, @, ., or _.
(2) Pertaining to a character
set that contains letters, digits, and usually other characters, such as
punctuation marks. (A)
alphanumeric character
In COBOL,
any character in the character set of the
computer.
alphanumeric cursor
In the GDDM
function, a physical indicator on a display. The alphanumeric cursor
may be moved from one hardware cell to
another.
alphanumeric edited item
In
COBOL, an alphanumeric data item with a PICTURE character string that contains
at least one B, 0, or /.
alternate format
In the
OfficeVision program, a different arrangement of text from the one currently
being used for a specified document.
alternate index
In CICS, an index
based on an alternate key. It allows the file to be processed in a
secondary key order.
alternate IPL
The process of
loading code into main storage from a designated input/output device instead
of from the load-source unit for the system, and of preparing for system
operations. An alternate IPL is a Type D
IPL.
alternate record key
In COBOL, a
key, other than the prime record key, whose contents identify a record within
an indexed file.
alternate user security
InMQSeries,
a security feature in which the authority of one user ID can be used by
another user ID, for example, to open an MQM
object.
alternating array
In RPG, two
arrays that are loaded together.
alternating current
An electric
current that reverses its direction at regularly recurring
intervals.
alternating table
In RPG, two
tables that are loaded together.
alternative collating sequence
A
user-defined collating sequence that replaces the standard EBCDIC collating
sequence. See collating
sequence.
alternative console
A display
device assigned by the operating system to function as the console if the
console is not working. The system searches for an alternative console
when contact with the system console fails.
alternative cylinder
A cylinder
on the disk that is reserved by the system then made available in place of a
cylinder that is damaged or defective.
alternative line
A second
switched line to which a remote controller can be attached if the first
communications line is not available.
alternative sector
A sector on
the disk that is reserved by the system then made available when a sector is
damaged or defective. See
sector.
alternative shift
In Client
Access, an operation that defines a different set of characters or functions
for the keyboard when the Alt key is pressed; for example, the Backspace
key may represent the clear function when the Alt key is
pressed.
alternative transport class
In OSI,
a transport class that an application entity will accept for use in an
association. Contrast with preferred transport
class.
American National Standard Code for Information Interchange (ASCII)
The code
developed by the American National Standards Institute for information
exchange among data processing systems, data communications systems, and
associated equipment. The ASCII character set consists of 7-bit control
characters and symbolic characters, plus one parity
bit.
American National Standards Institute (ANSI)
An
organization sponsored by the Computer and Business Equipment Manufacturers
Association for establishing voluntary industry
standards.
analog
Pertaining to data that
consists of continuously variable physical quantities. Contrast with
digital.
anchor control
In the GUI
designer tool suite of the VisualAge RPG licensed program, when the user has
selected a group of controls in the design window, the attributes of the
anchor control, such as position, size, and alignment, are applied to the
other selected controls in the group.
AND relationship
The
specification of conditioning indicators so that the operation is performed
only when all conditions are met.
ANET
See adjacent network
entity title (ANET).
ANET nickname
In OSI, a synonym
for adjacent network entity title
nickname.
ANI
See automatic number
identification (ANI).
A/N/K
Pertaining to alphabetic,
numeric, or Katakana characters.
annotation
(1) An added descriptive
comment or explanatory note.
(2) In Business Graphics Utility,
the option that allows text to be placed on a chart.
ANSI
See American National
Standards Institute (ANSI).
AnyNet
An IBM implementation of
the Multiprotocol Transport Network (MPTN) architecture, such as AnyNet/2 and
AnyNet/MVS. AnyNet capability allows applications and associated
services that use application programming interfaces, such as sockets, ICF, or
CPI-Communications, the flexibility to use alternative network protocols, such
as SNA or TCP/IP, and a variety of subnetwork types, such as a LAN,
frame-relay, and ISDN.
APAR
See authorized program
analysis report (APAR).
APAR media
The diskette or the
tape to which the user collects APAR information.
APD
See Application Program
Driver (APD).
APDU
See application-layer
protocol data unit (APDU).
APF
See advanced printer
function (APF).
API
See application
programming interface (API).
APPC
See advanced
program-to-program communications (APPC).
applet
A program that is written
in Java and runs inside of a Java-compatible browser or
AppletViewer.
AppletViewer
An application,
which is part of Java Developer's Kit (JDK), that allows you to see how
an applet will look and behave.
application
(1) A collection of
software components used to perform specific types of user-oriented work on a
computer.
(2) A particular business task,
such as inventory control or accounts
receivable.
application association
In OSI, a
cooperative relationship between two application entities that enables them to
exchange data. Synonymous with
association.
application boundary
During the
save-while-active operation, a point in time when all of the objects that a
particular application is dependent on are: 1) at a consistent state in
relationship to each other, and 2) in a state where the application can be
started or started again.
application context
In OSI, a set
of rules for two application entities to use for an association that provides
a means for agreement on the type of processing to be done. Included
are the set of application service elements and their options that are to be
used for the association. The application context is negotiated by the
ACSE when it establishes the
association.
application context name
In OSI,
a name that specifies the application context to be used for an association
and the kind of work that an application does. In OSI, application
context names are in object ID format. For applications that are
defined by the ISO, such as FTAM, the ISO specifies application context
names. For other applications, the application context names are
specified by the user.
application definition
In System
Manager, an object that contains information about an application, such as the
number of options the application has and the number of loads each application
option may have. The SystemView object type is
*PFDDFN.
application developer
In the
Application Development Manager feature of the Application Development ToolSet
licensed program, an application programmer who uses theApplication
Development Manager environment to develop
code.
Application Development Manager
A feature
of the Application Development ToolSet program that functions as a change
management tool for application development. Project administrators use
the Application Development Manager feature to define project hierarchies for
their application development, and to define the creation and movement of
parts, within a project hierarchy, by application
developers.
Application Development ToolSet
The IBM
licensed program that provides an integrated set of application development
tools, or utilities, to be used by programmers, analysts, and support
personnel. This package includes the following utilities:
programming development manager (PDM), source entry utility (SEU), file
compare and merge utility (FCMU), interactive source debugger (ISDB), screen
design aid (SDA), data file utility (DFU), report layout utility (RLU), and
advanced printer function (APF). This package also includes the
following features: Application Dictionary Services and Application
Development Manager. In addition, the character generator utility (CGU)
is added to the package if the user's system supports the double-byte
character set (DBCS).
Application Development ToolSet Client Server (ADTS CS)
The IBM
licensed program that provides support for client/server application
development on intelligent workstations. ADTS CS allows editing,
debugging, screen and report design, and visual development of user interfaces
on the workstation by using graphical user interface
tools.
Application Dictionary Services
A feature of
the Application Development ToolSet program that stores information about
objects used in applications, and their relationships to other objects.
For example, information about field definitions, data areas, files, and
programs is automatically updated while the user works with programs or
modules in the Application Dictionary Services feature.
application dimension
A major
part of the SystemView structure that defines a way to classify which systems
management task an application program addresses. Six disciplines
within the application dimension are used to classify systems management
tasks: business management, change management, configuration management,
operations management, performance management, and problem
management.
application entity (AE)
In OSI, the
part of an application process that contains the OSI communications
functions. An application process can have more than one application
entity. Application entities can have more than one application
association. See also application
process.
application entity common name
In OSI, a
user-defined character string recommended by ISO for identifying an
application entity. The application entity common name is part of the
distinguished name of an application entity and must be unique within its next
higher-level object--the application process common name. See also
application process common name and distinguished
name.
application entity descriptor
In OSI,
information that identifies an application entity to OSI Communications
Subsystem. The application entity descriptor also specifies the default
application mode to be used for associations that are established by the
application entity. See also application
entity.
application entity environment
In OSI,
an environment that OSI Communications Subsystem establishes when an
application entity identifies itself to OSI Communications Subsystem.
The OSI Communications Subsystem requires that an application entity
environment be established before an application entity can be
activated. See also application entity
identifier.
application entity ID
In OSI, a
synonym for application entity
identifier.
application entity identifier
In OSI, a
parameter that identifies a particular application entity to the programming
interface. The programming interface returns the application entity
identifier when the customer program builds an application entity
environment. The customer program then uses the application entity
identifier to identify itself to OSI Communictions Subsystem on later
calls. See also application entity
environment.
application entity nickname
In OSI, the
name by which the local OSI Communications Subsystem identifies an application
entity title. See also application entity
title.
application entity object class
In OSI,
the set of objects that are application entities. See also
application entity and object
class.
application entity qualifier
In OSI, an
optional integer field that further defines an application entity
title.
application entity states
In OSI,
the set of states that an application entity can be in. The state of an
application entity determines what actions it can
take.
application entity title
In OSI,
an identifier for an application entity that supplements the generic
information in the application context name. Application entity titles
are represented as distinguished names, and can also be optionally represented
as object IDs. In object ID form, the application entity title consists
of an application process title and an optional application entity
qualifier. See also application entity
qualifier.
application layer
In open systems
interconnection architecture, the layer of the model that provides a means for
application processes residing in different systems to exchange
information.
application-layer protocol data unit (APDU)
In OSI,
a protocol data unit in the application
layer. (I)
application mode
In the OSI
Communications Subsystem licensed program, a set of values that represent the
communications services requested when establishing an association. If
the application entity uses the presentation layer services, the application
mode specifies both presentation layer and session layer values; if the
application entity uses the session layer services, the application mode
specifies session layer values only. The application mode also
indicates the transport mode to be used for an
association.
application option
In System
Manager, a group of one or more loads, one of which must be a code
load. An application option is an independent piece of an application
program that may or may not be used with the base application
program.
application process
(1) In OSI, the
part of an application that resides in a single node. An application
process consists of one or more application entities and other parts of an
application that are unrelated to OSI data communications. See also
application entity.
(2) In DB2 UDB for
AS/400, a unit that is dependent on the environment, but has the same basic
properties in all environments. An application process is made up of
one or more application groups. Synonymous with
job.
application process common name
In OSI,
a user-defined character string recommended by ISO for identifying an
application process. The application process common name is part of the
distinguished name of an application. See also application
process.
application process title
In OSI, the
identifier for an application process within
OSI.
application program
A program
used to perform a particular data processing task, such as inventory control
or payroll.
Application Program Driver (APD)
An IBM
licensed program used to integrate multiple applications into a common
environment and to integrate functions common to those applications.
The APD/400 program provides a standardized interface that allows users to
access their applications and to switch between
applications.
application programming interface (API)
A
functional interface supplied by the operating system or a separately
orderable licensed program that allows an application program written in a
high-level language to use specific data or functions of the operating system
or the licensed program.
application requester (AR)
The
source of a request to a remote relational database management system
(DBMS).
application server (AS)
The target
of a request from an application requester. The database management
system (DBMS) at the application server site provides the
data.
application service element (ASE)
A set of
functions in the application layer of OSI that provides a capability for the
interworking of application entities for a specific purpose on a single
application association. The set of functions is identified during
association establishment to be used or provided by the peer application
entities.
application shell (SH)
The CICS
facility that provides the work management mechanism to build and refresh the
application programming environment needed to run CICS transactions.
See also user shell.
application support protocol
The
protocol that connects application requesters and application
servers.
Application System/400 (AS/400)
One of a
family of general purpose systems with a single operating system, Operating
System/400, that provides application portability across all
models.
application thread
In the
Distributed Computing Environment (DCE), a thread of execution created and
managed by application code. See client application thread,
local application thread, RPC thread, and server
application thread.
application variable pool
The set
of all dialog variable values for an open
application.
APPLID
In CICS, a system
initialization and terminal control parameter that identifies the CICS system
to other remote systems.
apply program
In DataPropagator
Relational, a component that is used to refresh or to update a copy table
depending on the applicable source-to-target rules.
APPN
See Advanced
Peer-to-Peer Networking
(APPN).
appropriate privileges
A level of
authority possessed by a process in which the user profile under which the
process is running has *ALLOBJ special authority.
AR
See
application requester (AR).
archive
In Backup Recovery and
Media Services, a service that copies inactive files from disk to removable
media for longer term storage and removes the files from disk to free disk
storage space. The user can select specific objects or groups of
objects to include or exclude from the archive
process.
archive candidates
In Backup
Recovery and Media Services, the objects and documents that have been selected
by an archive control group to archive. Archive candidates are reported
on the Archive Candidate Report, which is produced by the Start Archive using
BRM (STRARCBRM) command.
archive control group
In Backup
Recovery and Media Services, a group of objects (lists) that share common
archive characteristics. The default values for archive control groups
are defined in the BRM archive policy and can be used or overridden in each
archive control group.
archive policy
In Backup Recovery
and Media Services, a policy that defines the default values that are used in
archive control groups. Archive policy values can be overridden at the
individual archive control group level. The archive policy inherits
defaults from the system policy. System policy defaults can be used or
overridden in the archive policy.
archiving
A storage management
operation that saves disk space by selecting infrequently used objects, saving
the objects to tape, and then deleting the objects from
disk.
area-specific help
In an
application program using DDS, help information supplied by the programmer for
the area of the screen where the cursor is located when the person using the
program presses the Help key.
argument
(1) In a high-level language
(HLL) procedure call, an expression that represents a value that the calling
procedure passes to the called procedure.
(2) In REXX, a string
passed between a calling routine and a called routine or a parameter provided
to a program.
(3) An expression that is
passed to a function or subroutine for
evaluation.
argument list
(1) In UIM, a list of
values that are passed to a program.
(2) In REXX, a complete set of
arguments, separated by commas, that are passed between a calling routine and
a called routine.
arithmetic expression
(1) A statement
containing any combination of values joined together by one or more arithmetic
operators in such a way that the statement can be processed as a single
numeric value.
(2) In COBOL, an
operand of certain conditional and arithmetic statements. Arithmetic
expressions consist of any of the following: an identifier described as
a numeric elementary item; a numeric constant; the figurative
constant ZERO; identifiers and constants, as just described, separated by
arithmetic operators; two arithmetic expressions, as just described,
separated by an arithmetic operator; or an arithmetic expression, as just
described, enclosed in parentheses.
arithmetic operation
(1) An operation
such as addition, subtraction, multiplication, division, or exponentiation
that is performed only on numeric fields.
(2) In COBOL, the
process caused by the running of an arithmetic statement or the evaluation of
an arithmetic expression that results in a mathematically correct solution to
the arguments presented.
arithmetic operator
(1) A symbol used
to represent a mathematical operation, such as + or -, used to indicate
addition or subtraction.
(2) In COBOL, one of the
symbols +, -, *, /, or **, used to indicate, respectively, addition,
subtraction, multiplication, division, and exponentiation.
(3) In REXX, an operator
used to perform arithmetic operations on character strings that are valid
numbers. The arithmetic operators include addition (+), subtraction
(-), multiplication (*), exponentiation (**), division (/), integer division
(%), remainder (//), prefix +, and prefix
-.
arithmetic statement
In COBOL, a
statement that causes an arithmetic operation to be run. The arithmetic
statements are the ADD, COMPUTE, DIVIDE, MULTIPLY, and SUBTRACT
statements.
ARP
See Address Resolution
Protocol (ARP).
array
(1) In C, a collection of one
or more elements with identical characteristics, grouped into one or more
dimensions.
(2) In RPG, a series of elements with
like characteristics. An array can be searched for a uniquely
identified element, or elements in an array can be accessed by their position
relative to other elements. Contrast with table.
(3) In REXX, an arrangement of data in
one or more dimensions, such as a list, a table, or a multidimensional
arrangement of items. Arrays use compound
symbols.
array element
One of the data
items in an array.
array file
In RPG, an input file
containing array elements.
array index
In RPG, the actual
number of an element in an array, or the field containing the number or
relative position of an element in an
array.
arrival sequence
An order in
which records are retrieved that is based on the order in which records are
stored in a physical file. See also keyed
sequence.
arrival sequence access path
An access
path to a database file that is arranged according to the order in which
records are stored in the physical file. See also keyed sequence
access path and access path.
AS
See
application server (AS).
ASC
See Abstract Syntax
Checker (ASC).
ascending key
The values by which
data is arranged from the lowest value to the highest value of the key field
in accordance with the rules for comparing data items. Contrast with
descending key.
ascending key sequence
The
arrangement of data in order from the lowest value of the key field to the
highest value of the key field. Contrast with descending key
sequence.
ascending sequence
The
arrangement of data in order from the lowest value to the highest value,
according to the rules for comparing data. Contrast with
descending sequence.
ASCII
See American National
Standard Code for Information Interchange
(ASCII).
ASCII line-mode display station
A display
station that has the characteristics of Teletype equipment or
typewriters. The display station has a one-line input field at the
bottom of the screen. The output field is located above the input field
and receives data, one line at a time, with the most recent data at the bottom
of the output field.
ASCII port sharing
A function
that allows the user to have different ASCII devices (programmable or
nonprogrammable work stations) share the same port, at different times,
without needing to manually create a configuration description for each new
device.
ASE
See application service
element (ASE).
ASN.1
See
abstract syntax notation one (ASN.1).
ASN.1 encoding rules
In OSI,
rules that specify the representation during transfer of the value of any
ASN.1 type. ASN.1 encoding rules enable information being
transferred to be identified by the recipient as a specific value of a
specific ASN.1 type.
ASN.1 types
In OSI, data
types defined by ASN.1 notation, for example, Boolean values and bit
strings. See data types.
ASP
See auxiliary storage
pool (ASP).
aspect ratio
In the Client Access
licensed programs and in Business Graphics Utility, the ratio of one dimension
to another, for example, the ratio of the width of a graphic to its height as
it appears on the display.
assignment
(1) The process of giving
a value to a variable.
(2) In REXX, a single clause with
the form symbol = expression. An assignment gives a variable
a new value.
assignment conversion
In the C
language, a change to the form of a value where the operand being assigned is
converted to the type of the variable receiving the
assignment.
assignment name
In COBOL, a word
that associates a file name with a
device.
assignment statement
A
statement that gives a value to a variable. It always contains the
assignment symbol (=).
assistance level
The type of
displays that a user selects to interact with the system. The three
levels of assistance available are basic, intermediate, and
advanced.
association
In OSI, a synonym for
application
association.
association control service element (ACSE)
In OSI,
a set of services defined by ISO 8649 for controlling an application
association between two application entities that communicate using a
presentation connection. The ACSE services provide a means to establish
and release an association between the application entities. The ACSE
services form the minimum part of the application layer
services.
association environment
In OSI,
an environment that OSI Communications Subsystem for AS/400 establishes for an
association. OSI Communications Subsystem for AS/400 requires that an
association environment be established before an application entity can
establish an association.
association establishment
In OSI,
the process of creating an association between two application
entities. After an association is established, the application entities
can exchange data.
association ID
In OSI, a synonym
for association
identifier.
association identifier
In the OSI
Communications Subsystem licensed program, a parameter that identifies a
particular association to the programming interface. The programming
interface returns the association identifier when the application entity
builds an association environment. The application entity then uses the
association identifier to specify the association on later OSI Communications
Subsystem calls.
association release
In OSI, the
process of ending an association between two application entities.
After an association is released, the application entities can no longer
exchange data.
association states
In the OSI
Communications Subsystem licensed program, the set of states that an
association can be in after an association environment is established.
The state of an association determines what actions the application entity can
take for that association.
assumed decimal point
In COBOL, a
logical decimal point position that does not occupy a storage position in a
data item. It is used by a compiler to align a value properly for
calculation or input/output operations. Contrast with actual
decimal point.
assumed value
A value supplied by
the system when no value is specified by the
user.
asterisk fill
A type of numeric
editing that puts asterisks to the left of a number to fill unused
positions. Example:
*****476.12
asymmetric keys
In computer
security, the two keys in a key pair. The keys are called asymmetric
because one key holds more of the encryption pattern than the other
does. See key pair.
asynchronous
(1) Not occurring in a
regular or predictable pattern.
(2) Without a regular time
relationship.
asynchronous balanced mode (ABM)
In
communications, an operational mode of a balanced data link in which either
combined station can send commands at any time and can initiate transmission
of response frames without explicit permission from the other combined
station.
asynchronous balanced mode extended (ABME)
In
communications, an operational mode in which modulus 128 sequence numbers are
used. See also asynchronous balanced mode
(ABM).
asynchronous communications
A method
of communications supported by the operating system that allows an exchange of
data with a remote device, using either a start-stop line or an X.25
line. Asynchronous communications includes the file transfer support
and the interactive terminal facility
support.
asynchronous continuous update
A process
in which all changes in the base table are recorded and applied to existing
target data, with updates being applied to the target immediately after being
committed in the base table.
asynchronous controller description
A
controller description that represents a remote system or device when using
asynchronous transmission methods on an asynchronous communications line or
when using non-SNA protocols on an X.25 communications line to
communicate with the system. See also generic controller
description.
asynchronous disk I/O
In
Performance Tools, a disk access operation that is not expected to complete
before program operation can continue. Contrast with synchronous
disk I/O.
asynchronous I/O
A series of
input/output operations that are being done separately from the job that
requested them.
asynchronous operation
An
operation that occurs without a regular or predictable time relationship to a
specified event; for example, the calling of an error diagnostic routing
that may receive control at any time during the execution of a computer
program.
asynchronous processing
A series
of operations that are done separately from the job in which they were
requested; for example, submitting a batch job from an interactive job at
a work station. Contrast with synchronous
processing.
asynchronous/SDLC
A data-link
level communications protocol that allows data to be transmitted over an
asynchronous line using a control protocol similar to
SDLC.
asynchronous transfer mode (ATM)
A
communications method that incorporates network switches; small,
fix-length cells; and negotiated service
connections.
asynchronous transmission
A method
of transmission in which the sending and receiving of data is controlled by
control characters instead of by a timing sequence. Contrast with
synchronous transmission.
AS/400 Advanced Application Architecture
The name of
the AS/400 system's architecture.
AS/400 Advanced 36
AS/400 models
that are capable of running the System Support Program (SSP) product or OS/400
as their primary operating system. SSP can be used as a secondary
operating system on some AS/400 Advanced 36 models when OS/400 is the primary
operating system.
AS/400 Advanced 36 definition
An internal
definition of an AS/400 Advanced 36 machine that exists when an AS/400
Advanced 36 is running only the System Support Program (SSP) Product.
After OS/400 is installed, the first time an AS/400 Advanced 36 machine is
created (CRTM36 command), the internal definition is converted to an AS/400
Advanced 36 machine (*M36 object) and an AS/400 Advanced 36 configuration
(*M36CFG object). These objects are functionally equivalent to the
internal definition.
AS/400 Advanced 36 machine
An
object within the OS/400 operating system that represents a unique AS/400
Advanced 36. The AS/400 Advanced 36 machine is capable of running the
System Support Program (SSP) Product operating system as a secondary operating
system within OS/400. The system-recognized identifier for the object
type is *M36.
AS/400 Advanced 36 machine configuration
An
object within the OS/400 operating system that can be applied to an AS/400
Advanced 36 machine to describe its devices and characteristics. The
system-recognized identifier for the object type is
*M36CFG.
AS/400 BASIC
An IBM PRPQ that
compiles or interprets BASIC programs on the AS/400
system.
AS/400 Developer Kit for Java
The IBM licensed
program that is a compatible implementation of the Sun Microsystems,
Inc. Java Technology.
AS/400 Directory Services
An option of the
OS/400 licensed program that enables AS/400 to run a Lightweight Directory
Access Protocol (LDAP) server.
AS/400 NetServer
See AS/400 Support
for Windows Network Neighborhood (AS/400 NetServer).
AS/400 object
An object that
exists in a library on the AS/400 system and is represented by an object on
the PC. For example, a user profile is an AS/400 object represented on
the PC by the user profile object.
AS/400 PL/I
An IBM PRPQ that is a
high-level language available on the AS/400 system. The AS/400 PL/I
PRPQ is capable of handling a large variety of data structures and easily
allows variation of precision in numeric
computation.
AS/400 resource
In System Manager,
an entity that contains objects and other resources that reside on the AS/400
system and are represented by System Manager on the PC. AS/400
resources supported by System Manager include items within lists, such as user
profile and user. Contrast with workstation
object.
AS/400 Support Family of Services
A selection
of support services, which can be purchased individually or in packages,
offered by IBM to AS/400 customers. These services range from answering
questions on AS/400 system usage and support to consulting on complex system
issues.
AS/400 Support for Windows Network Neighborhood (AS/400 NetServer)
A function
of the OS/400 operating system that enables Microsoft Windows clients on a
network to access AS/400 shared directory paths and shared output queues
without any unique software. The clients use the file and print sharing
functions that are included in their Windows operating systems.
AS/400 System/38 Migration Aid
The IBM
licensed program that helps organize and automate the migration of System/38
objects to the AS/400 system.
AS/400 Toolbox for Java
A library of
Java classes that gives Java-program access to AS/400 data and
resources.
ATI
See automatic
transaction initiation (ATI).
ATL
See automated tape
library (ATL).
ATM
See asynchronous
transfer mode (ATM).
ATM address
A 20-digit
hexadecimal number that uniquely identifies an end system in an asynchronous
transfer mode (ATM) network. AS/400 registers a unique ATM address for
each input/output adapter (IOA).
ATM forum
A worldwide
organization that promotes asynchronous transfer mode within the industry and
the end-user community. The ATM forum defines two basic standards of
interoperability: user-to-network interface (UNI) 3.0 and UNI
3.1.
at-most-once semantics
In the
Distributed Computing Environment (DCE), a characteristic of a procedure that
restricts the procedure to being run once, partially, or not at all.
See broadcast semantics, idempotent semantics, and
maybe semantics.
atomic
(1) In DB2 UDB for AS/400 SQL,
a characteristic of database data definition functions that allows the
function to complete or return to its original state if a power interruption
or abnormal end occurs.
(2) In commitment control, a
characteristic that allows individual changes to objects to appear as a single
change.
attached processor
In telephony,
a host computer that is attached by a communications line to a telephone
switch and that is controlling some, if not all, of the switch
functions.
attachment
An entire device or
feature attached to a processing unit, including required adapters.
Contrast with adapter.
attachment
A separate unit of
information associated with a
message.
attachment reference
A string of
data representing a reference to an attachment. The format and contents
of the attachment reference are defined by the attachment reference
type.
attachment reference type
A value
used to define the format and contents of an attachment reference, so that the
programs that work with specific types of attachment references are
supported. The attachment reference types supported on a system are
defined when the mail server framework is configured. The value
associated with an attachment reference type must be a unique type
value.
attachment unit interface
See
transceiver cable.
attended mode
An AS/400 Operations
Console state that requires the local controlling system operator to approve
each remote request for control of the AS/400 system when the local
controlling system is in control. See also Operations
Console.
attention identifier (AID)
A
character in a data stream that is sent to the host system when a display
station user presses an attention identifier (AID) key. Typical AID
keys are function keys or the Clear, Enter, Page Up, Page Down, Help, Print,
and Home keys.
attention identifier (AID) key
A key that
causes an attention identifier (AID) to be sent to the host system when
pressed, such as a function key or the Clear, Enter, Page Up, Page Down, Help,
Print, and Home keys.
Attention-key-handling program
A
user-defined program that is called when the work station user presses the
Attention (Attn) key.
attribute
(1) A characteristic or
trait of one or more items.
(2) In Business Graphics Utility,
the characteristics that make up the chart format.
(3) In DCE Remote Procedure Call
(RPC), an interface definition language (IDL) or attribute configuration file
(ACF) that conveys information about an interface, type, field, parameter, or
operation.
(4) In the DCE Distributed Time
Service (DTS), a qualifier used with DTS commands. DTS has four
attribute categories: characteristics, counters, identifiers, and
status.
(5) In the DCE X/Open Directory
Service (XDS), information of a particular type concerning an object and
appearing in an entry that describes the object in the directory information
base (DIB). It denotes the attribute's type and a sequence of one
or more attribute values, each accompanied by an integer denoting the
value's syntax.
(6) In MQSeries, one of a set of
properties that defines the characteristics of an MQM object.
(7) In an SQL database design, a
characteristic of an entity; for example, the telephone number of an
employee is one of that employee's attributes.
(8) In user interface manager
(UIM) tag language, an identifier used with related material that takes on a
specific meaning, such as an action to be taken or the characteristics of text
or data.
attribute character
A character
associated with a field in a display file record format that defines how the
field is displayed.
attribute configuration file (ACF)
In the
Distributed Computing Environment (DCE), an optional companion to an interface
definition file that modifies how the Interface Definition Language (IDL)
compiler locally interprets the interface definition. See also
interface definition and Interface Definition
Language.
Attribute Configuration Language
In the
Distributed Computing Environment (DCE), a high-level declarative language
that provides syntax for attribute configuration files. See
attribute configuration file.
attribute object
In a threaded
program, any pthreads data structure that is used to specify initial states
when you create certain resources such as threads, mutexes, and condition
variables.
attribute type
(1) In the Distributed
Computing Environment (DCE) X/Open Directory Service (XDS), the component of
an attribute that indicates the type of information given by that
attribute. Because it is an object identifier, it is unique among other
attribute types.
(2) In Distributed Computing
Environment (DCE) X/Open Object Management (XOM), any of various categories
into which the client dynamically groups values on the basis of their
semantics. It is an integer unique only within the
package.
attribute value
In the
Distributed Computing Environment (DCE), a particular instance of the type of
information indicated by an attribute type.
audio
Pertaining to the portion
of recorded information that can be heard.
audio part
In VisualAge RPG, a
nonvisible part that allows the application to play audio sounds, such as
music and speech.
Audio Visual Connection (AVC)
The
desktop system used on an IBM PS/2 that enables an author to develop and
display audio-visual shows.
audit
To review and examine the
activities of a data processing system mainly to test the adequacy and
effectiveness of procedures for data security and data
accuracy.
audit journal
A journal used by
the system to keep a record of security-relevant events that occur.
System name is QAUDJRN. See also audit level, object
auditing, and
security-relevant.
audit level
The types of user
actions that are currently being audited for the entire system or for specific
users on the system. Actions that can be audited include authority
failures and restoring objects. A record of each action is written to
the audit journal. See also audit
journal.
audit trail
Data in the form of a
chronological path linking a sequence of events that allows the system to
trace the transactions that have affected the contents of a record, such as a
customer account or item record.
audit trail table
In
DataPropagator Relational, a table at the control server that records a
history of refresh operations and update operations performed against target
tables. The history information can be used to audit refresh and update
activity, and it is a repository to diagnostics and performance
statistics.
audit window
In the OfficeVision
program, a field in the status line that displays the name of a text
instruction or character when the cursor is positioned on that instruction or
character.
aural
Relating to the ear or to
the sense of hearing.
authentication
(1) In computer
security, verification that a message has not been altered or damaged.
(2) In computer security, a
process that is used to verify the user of an information system or protected
resources.
authentication algorithm
In a
Virtual Private Network (VPN), an algorithm that converts variable-length
input data into fixed-length output data.
Authentication Header (AH)
In a
Virtual Private Network (VPN), a security protocol that provides data
authentication.
authentication level
Synonym for
protection level.
authentication method
In a
Virtual Private Network (VPN), a procedure that is used to verify the identity
of the sender of a message.
authentication protocol
A formal
procedure for verifying a principal's network identity. Kerberos
is an instance of a shared-secret authentication
protocol.
Authentication Service
One of the
three services provided by the Security Service in the Distributed Computing
Environment (DCE). It verifies principals according to a specified
authentication protocol. The other Security services are the Privilege
Service and the Registry
Service.
authentication surrogate
In the
Distributed Computing Environment (DCE), a type of principal entry in a
cell's Registry database that represents a foreign cell. This
principal shares a secret key with a corresponding entry in the foreign
cell's Registry. The Authentication Services of the two cells use
the secret key for the purpose of exchanging data about principals without
either Authentication Service having to share its private key with the
other.
authoritative
In Domain Name
System (DNS), pertaining to a server that has complete information about a
particular domain.
authority
The right to do
something or to have it done on the system. On an AS/400 system, you
must have authority to an object to work with it. Private authority and
public authority are examples of authorities on the AS/400
system.
authority checking
A function of
the system that looks for and verifies a user's authority to an
object.
authority holder
An object that
specifies and reserves an authority for a program-described database file
before the file is created. When the file is created, the authority
specified in the holder is linked to the
file.
authority lookups
In Performance
Tools, the process whereby the Licensed Internal Code determines whether a
particular user ID is authorized to access a specific
object.
authority nickname
In the OSI
Communications Subsystem licensed program, a nickname for the higher portion
(a set of names that are higher in the hierarchy) of an application
entity's distinguished name. The authority nickname refers to that
portion of the application entity's distinguished name above the
application process common name. The authority nickname can be shared
by many application entities.
authorization
(1) In the Distributed
Computing Environment (DCE), the determination of a principal's
permissions with respect to a protected object, or the approval of a
permission sought by a principal with respect to a protected
object.
(2) In computer security, the
right granted to a user to communicate with or make use of a computer
system.
authorization ID
In DB2 UDB for
AS/400 SQL, a user profile. A name identifying a user to whom
privileges can be granted.
authorization list
A list of two
or more user IDs and their authorities for system resources. The
system-recognized identifier for the object type is
*AUTL.
authorization list management authority
An object
authority that allows the user to add users to, remove users from, and change
users' authorities on the authorization
list.
authorization protocol
In the
Distributed Computing Environment (DCE), a formal procedure for establishing
the authorization of principals with respect to protected objects.
Authorization protocols supported by the Security Service include DCE
authorization and name-based
authorization.
authorization service
In the
Distributed Computing Environment (DCE), an implementation of an authorization
protocol.
authorize
To permit or give
authority to.
authorized program analysis report (APAR)
A request
for correction of a defect in a current release of an IBM-supplied
program.
AUTOEXEC.BAT
The batch
file that contains DOS commands or program names that are automatically run on
a personal computer immediately after DOS is
loaded.
automated tape library (ATL)
A tape
library that performs its functions under direct software or application
control.
automatic answer
In data
communications, a line type that does not require operator action to receive a
call over a switched line. Contrast with manual
answer.
automatic bind
In DB2 UDB for
AS/400 SQL, the bind that automatically takes place when an application
program is run and the bound access plan is nullified; that is, without a
user issuing a CRTSQLxxx command (where xxx is CI, CBL, CBLI, FTN, PLI, RPG, or RPGI). See also bind
and dynamic bind.
automatic binding method
In the
Distributed Computing Environment (DCE), a method of managing the binding for
a remote procedure call. It completely hides binding management from
client application code. If the client makes a series of remote
procedure calls, the stub passes the same binding handle with each
call. See binding handle, explicit binding
method, and implicit binding
method.
automatic call
A feature that
permits a station to connect with another station over a switched line without
operator action. Contrast with manual
call.
automatic call distribution (ACD)
In
telephony, a service that allows incoming telephone calls directed to the same
dialed number to be routed to one of multiple agents, all of whom can provide
the same service to the calling party and all of whom are assigned to the same
ACD group.
automatic call unit
A common
carrier device that allows the AS/400 system to automatically dial a remote
location.
automatic cleanup
The system
process of automatically deleting items, such as old job logs, history log
messages, system journals, and system logs, from the system on a daily
basis.
automatic configuration
A
function that names and creates the descriptions of network devices and
controllers attached to a preexisting line. The objects are also varied
on at a user's request.
automatic data
Data that is
stored in automatic storage. Contrast with static
data.
automatic dial
A function of the
system that allows a system to automatically dial a remote station over a
switched line without the assistance of an
operator.
automatic duplication
An option
of the data file utility (DFU) function of the Application Development ToolSet
licensed program that allows information from a previous record to be
automatically copied into the current
record.
automatic duplication indicator
In DFU, a
field on the DFU Entry display that tells if the automatic duplication
function is on or off.
automatic functions
Work done by
the computer that a user does not explicitly have to
request.
automatic hyphenation
An option
available when creating a document that automatically hyphenates words at the
end of a line when the lines are
adjusted.
automatic initiation descriptor (AID)
In CICS,
an interval control element (ICE) that has expired. If all of its
required resources are available, it becomes an enabled AID. If it is
waiting for a resource to become free, it becomes a suspended AID. See
also interval control element
(ICE).
automatic key generation
An
option of the data file utility (DFU) function of the Application Development
ToolSet licensed program that allows DFU to assign record keys to the records
of a file.
automatic Licensed Internal Code completion
A function of
the system that automatically attempts to complete interrupted machine
instructions following an abnormal end of the system
processing.
automatic line adjustment
The function
of OfficeVision that fits lines between the defined left and right margins
automatically when text is inserted or deleted or when the left, right, or
temporary left margin is changed.
automatic number identification (ANI)
In
telephony, a service provided by enhanced switch networks that passes the
calling party's telephone number through the network to the called
party's telephone number. Also known as calling number or calling party.
automatic ranging
In Business
Graphics Utility, the use of system-supplied values to determine the intervals
on a chart so that the maximum and minimum data values can be represented on
the work station or plotter.
automatic report
A function of
the RPG licensed program that uses simplified specifications and standard
RPG/400 specifications to create a complete RPG/400 source
program.
automatic report program
A set of
instructions (program) that use the RPG automatic report function. See
also automatic report.
automatic storage
An area that is
allocated by the system when a program or procedure is called. Within
automatic storage, data is defined each time the program or procedure is
called. Contrast with static
storage.
automatic teller machine (ATM)
See
consumer transaction facility
(CTF).
automatic transaction initiation (ATI)
A
transaction that is automatically started to process data in a intrapartition
destination queue after the number of entries in the queue reaches a
predefined trigger level. A transaction can also start another
transaction at a specified workstation.
automatic vary on
An option
specified during the creation of configuration objects that allows them to be
available when the system is started
(IPL).
autonegotiation
A universal
mechanism to exchange network capabilities between two Ethernet nodes.
The exchange takes place at power-up (or link reset) time. It
automatically establishes a link that takes advantage of the highest common
denominator of the mutual capabilities of the two Ethernet nodes. The
universal mechanism negotiates capabilities that include link speed, PHY
types, and full duplex or half duplex.
autostart
(1) Pertaining to a system
activity that starts automatically, usually based on the start or end of some
other activity.
(2) An OSI Communications
Subsystem function that starts an X.25 line automatically when the line
set that it belongs to is started.
autostart job
A batch job doing
repetitive work or one-time initialization work that is associated with a
particular subsystem. The autostart jobs associated with a subsystem
are automatically started each time the subsystem is
started.
auxiliary storage
All addressable
storage other than main storage. Contrast with main
storage.
auxiliary storage pool (ASP)
One or
more storage units that are defined from the storage devices or storage device
subsystems that make up auxiliary storage. An ASP provides a way of
organizing data to limit the impact of storage-device failures and to reduce
recovery time. See also disk pool, system ASP,
user ASP, library user ASP, and nonlibrary user
ASP.
auxiliary storage - TS queue
In CICS,
a temporary storage queue that is in a physical file managed by CICS.
Auxiliary storage should be used to store large amounts of data, or data
needed for a long period of time. Contrast with main storage - TS
queue.
auxiliary trace
An option in CICS
whereby trace entries are written to an external file. Any or all of
these trace entries can then be printed to help the user search for a
problem. Contrast with internal
trace.
availability
The condition
allowing end users to access and use their applications and
data.
available
In the basic assistance
level of the Operational Assistant function, to make a device, controller,
line, or network interface accessible for its normal, intended use.
Synonymous with vary on.
AVC
See Audio Visual
Connection (AVC).
AWT
See Abstract Window
Toolkit (AWT).
axis
In Business Graphics Utility
and the GDDM function, one of the intersecting horizontal or vertical scales
where data values are plotted on a chart.
axis grid lines
In Business
Graphics Utility and the GDDM function, straight lines extending perpendicular
to either axis at each major tick.
axis label
In Business Graphics
Utility, the name of a major tick on a vertical or horizontal
axis.
axis range
In Business Graphics
Utility, the upper and lower limits of the vertical or horizontal
lines.
axis title
In the GDDM function,
a text string describing what an axis represents.