A.

ABAP/4

 Advanced Business Application Programming/4.

abbreviated combined relation condition

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.   also normal installation.

abbreviated trace

Optional format for CICS trace entries which summarizes the information in full trace entries.   the CICS Transaction Server Problem Determination Guide for further information about trace.   also full trace.

abend

 abnormal end of task.

abend reason code

A 4-byte hexadecimal code that uniquely identifies a problem with a program that runs on a z/OS or OS390 operating system.

ABM

 asynchronous balanced mode.

ABME

 asynchronous balanced mode extended.

abnormal end of task (abend)

The termination of a task, job, or subsystem because of an error condition that recovery facilities cannot resolve during execution.

abnormal stop

In Communications Server for AIX and Windows NT, the process of stopping communications without waiting for current functions (for example, file transfer) to complete.

abnormal termination

(1) An exit that is not under program control, such as a trap or a segmentation violation.

(2) A system failure or operator action that causes a job to end unsuccessfully.

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 mode

In storage management, a backup copy group mode that specifies that a file is considered for incremental backup even if the file has not changed since the last backup.   also modified mode.

absolute path

The full path name of an object. Absolute path names begin at the highest level, or root directory (which is identified by the forward slash (/) or backward slash (\) character).   also relative path.

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.   also relative 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

(1) A point in time relative to a selected previous point in time from which the timescale (or measurement of time) begins. For example if you wanted to start a batch job using absolute time and the timescale begins at midnight, then specifying an absolute time of 07:00 would mean that the batch job runs at 7am. If the timescale begins at 9am with an absolute time of 07:00, the batch job would run at 4pm.

(2) As returned by an EXEC CICS ASKTIME command and input to an EXEC CICS FORMATTIME command, the number of milliseconds since 00.00 on 1 January 1900.

absolute value

The magnitude of a number.

abstract

Something that cannot be directly instantiated; the opposite of concrete.

abstract class

An object-oriented programming class that represents a concept; classes derived from it represent implementations of the concept. An object cannot be constructed from an abstract class; that is, it cannot be instantiated.   also parent class, base class.

abstraction

The creation of a view or model that suppresses unnecessary details to focus on a specific set of details of interest.

abstract schema

Part of the deployment descriptor for an entity bean that is used to define the bean's relationships, persistent fields, or query statements.

abstract syntax

A data specification that includes all distinctions that are needed in data transmissions, but that omits (abstracts) other details such as those that depend on specific computer architectures.   also 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)

In Open Systems Interconnection (OSI), a notation for defining data structures and data types. The notation is defined in international standards ISO 8824/ITU X.208 and ISO 8825/ITU X.209.

abstract test

A component or unit test that is used to test Java interfaces, abstract classes, and superclasses; that cannot be run on its own; and that does not include a test suite. Before an abstract test can be run, it must be made concrete by applying the abstract test to a public class that implements the interface, extends the abstract class, or inherits from the superclass.   also component test.

Abstract Window Toolkit (AWT)

In Java programming, a collection of GUI components that were implemented using native-platform versions of the components. These components provide that subset of functionality which is common to all operating system environments. (Sun)   also Swing Set.

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.

ac

 alternating current.

ACB

 adapter control block.

ACC

 application control command.

accept calls

An inbound X.25 DTE attribute that determines whether or not the local node accepts a call from an adjacent node.

accept operation

An operation that deletes the backup software package so that the previous operation cannot be restored.

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.

access

The ability to read, update, or otherwise use a resource. Access to protected resources is usually controlled by system software.

access authority

One of a range of possible authority levels that control access to protected resources. In RACF, the access authorities are: NONE, EXECUTE, READ, UPDATE, CONTROL, and ALTER.

access bean

An enterprise bean wrapper that is typically used by client programs, such as JSP files and servlets. Access beans hide the complexity of using enterprise beans and improve the performance of reading and writing multiple EJB properties.

access client

A component that acts as an intermediary between collaborations and an external process such as a Web server. The access client communicates with InterChange Server through Server Access Interface.

access control

In computer security, the process of ensuring that only authorized users can access the resources of a computer system in authorized ways.   also access group.

access control environment element (ACEE)

In RACF, a control block containing details of the current user, including user ID, current connect group, user attributes, and group authorities. An ACEE is constructed during user identification and verification.

access-controlled section

A defined area on a form that allows only certain users to edit the fields in the section. In addition to fields, an access-controlled section can include objects, layout regions, and text.

access control list (ACL)

In computer security, a list associated with an object that identifies all the subjects that can access the object and their access rights. For example, an access control list is a list that is associated with a file that identifies the users who can access the file and that identified the user's access rights to that file.

access control list group (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.

access function

A user-provided function that converts the data type of text stored in a column to a type that can be processed by the DB2 Net Search Extender.

access group

A type of member group used to define access control.   also access control, site administrator.

accessibility

(1) Accessibility features help a user who has a physical disability, such as restricted mobility or limited vision, to use software products successfully.

(2) An attribute of a software or hardware product that is usable by individuals who have disabilities.

access ID

The unique identification of a user used during authorization to determine if access is permitted to the resource.

access intent

(1) In RACF, a subsystem's intended use of a protected resource.

(2) In enterprise beans, a kind of metadata that optimizes and controls the run-time behavior of an entity bean with respect to concurrency control, resource management, and database access strategies.

(3) In IMS, a subsystem's intended use of a database. This is in contrast to the sharing level of the database itself, which specifies how the database can be shared.

(4) The resource type attribute that determines how a resource participates in a transaction when the resource has been placed under commitment control. The possible access intents are update, read-only, and undetermined access intent.

access intent policy

A grouping of access intents that governs a type of data access pattern for enterprise bean persistence.

access key

(1) 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.

(2) In ESA key-controlled storage, a key associated with a storage access request. When key-controlled protection applies to a storage access, a store operation (write) is permitted only when the storage key matches the access key; a fetch (read) is permitted when the keys match or when the fetch-protection bit of the storage key is zero. In most cases, the access key for a storage operation is the program status word (PSW) key in the current PSW.

access list

In RACF, the part of a resource profile that specifies the users and groups that may access the resource and the level of access granted to each.

access method

A technique for moving data between main storage and input/output devices.

access method control block

A control block that links an application program to Virtual Storage Access Method (VSAM) or Virtual Telecommunications Access Method (VTAM).

access method services ( AMS AMS)

A facility that is used to define and reproduce VSAM key-sequenced data sets.

accessory

A type of merchandising association in which a suggested product is chosen as an addition to the currently displayed or selected product.   also cross-sell, merchandising association, up-sell.

accessory script

A CGI script that processes SEARCH, POST, PUT, or DELETE requests. The accessory scripts process requests that are not explicitly mapped to a CGI script named on an EXEC directive.

access path

The method that is selected by the database manager for retrieving data from a specific table. For example, an access path can involve the use of an index, a sequential scan, or a combination of the two.

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.

access permission

(1) The access privilege that applies to the entire object.

(2) The object authority to a high-performance file system file.

access plan

(1) In DB2 UDB for iSeries, the control structure produced during compile time that is used to process SQL statements encountered when the program is run.

(2) The set of access paths that are selected by the optimizer to evaluate a particular SQL statement. The access plan specifies the order of operations to resolve the execution plan, the implementation methods (such as JOIN), and the access path for each table referenced in the statement.

access point

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 point group

A collection of core groups that defines the set of core groups in the same cell or in different cells that communicates with each other.

access program

A user-provided part of a FEPI application that handles the main communications with application programs in CICS or IMS systems.

access protocol

A protocol used between an external subscriber and a switch within a telephone network.

access register (AR)

A register through which one address space accesses the data in another address space or data space.

access register mode (AR mode)

The address space control mode in which the system uses general purpose registers and the corresponding access register (AR) to resolve an address in an address space or a data space.   also address space control mode, primary mode.

access request

A request from an access client to InterChange Server.

access response

Response returned from a component in InterChange Server to an access request.

access scheduling

The selection by DL/I of IMS, DL/I, or SQL/DS database access tasks that are to be run. A CICS application program designed to access DL/I databases must schedule its access to DL/I. Scheduling includes ensuring that the PSB is valid, the application is not already scheduled, the databases referred to are open and enabled, and there is no intent conflict between the PSB and already scheduled PSBs from other application programs. Negative responses to any of the above prevents scheduling.

access security information field (ASIF)

In SNA, a field within Function Management Header Type 5 (FMH-5), which is used to convey security information.

access security information subfield (ASIS)

In SNA, a subfield within Function Management Header Type 5 (FMH-5), which is used to convey security information.

access token

(1) An object that contains security information for a process or thread, including the identity and privileges of the user account that is associated with the process or thread.

(2) In DB2 Data Links Manager, an encrypted key that is assigned by the database manager that must be generated to access a file under the control of the Data Links Manager.

access unit

A unit that allows attaching devices to access a local area network (LAN) at a central point, such as a wiring closet or an open work area.

account

In WebSphere Commerce Payments, a relationship between the merchant and the financial institution which processes transactions for that merchant. There can be multiple accounts for each payment cassette.

accountability

(1)   nonrepudiation.

(2) The quality of being responsible for one's actions.

account document

A document that contains information, such as the user name and password, about an Internet connection.

accounting class data

High-level data produced by the CICS monitoring facility which can be used for installation accounting purposes, such as the number of transactions for a given combination of transaction identifier, transaction type, terminal, and operator. This data is the minimum required to enable accounting routines to associate particular transactions with particular users or terminals.

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.

accounting string

User-defined accounting information that is sent to DRDA servers by DB2 Connect. The information can be specified from the client workstation using the SQLESACT API or the DB2ACCOUNT environment variable or the DB2 Connect workstation using the DFT_ACCOUNT_STR database manager configuration parameter.

account representative

A defined role in WebSphere Commerce responsible for creating contracts for accounts, and monitoring account activity. Account representatives are part of the sales organization, and can be involved in the creation of targeted sales promotions such as discounts and coupons.

ACD

(1)   automatic call distribution.

(2)   automatic call distributor.

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.

ACDI

 Asynchronous Communications Device Interface.

ACD pilot number

In telephony, the common telephone number that calling parties can dial to route calls to one of multiple agents.

ACEE

 access control environment element.

ACF

.Advanced Communications Function.

ACF/TCAM

 Advanced Communications Function for Telecommunications Access Method.

ACID properties

The properties of a transaction: atomicity, consistency, isolation, and durability. In CICS, the ACID properties apply to a unit of work (UOW).   also atomicity, ,consistency isolation, durability.

ACK

(1) acknowledgment character.

(2) acknowledgment.

ACK0

 even positive acknowledgment.

ACK1

In BSC, the odd-numbered, positive acknowledgment character, which indicates that text was received without transmission errors.

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.   also unacknowledged service.

acknowledgment (ACK)

The transmission of acknowledgment characters as a positive response to a data transmission.

acknowledgment character (ACK)

A transmission control character that is sent as an affirmative response to a data transmission.

ACL

(1)  access control list.

(2)  application connectivity link.

ACL group

 access control list group.

ACL monitor

In Notes/Domino, a document created in the Statistics & Events database that causes the Event task on a server to monitor a specific database for ACL changes.

acoustic panel

A panel bonded with a material to reduce operating noise from the devices in the rack.

ACP

 adapter configuration profile.

acquire

(1) To assign a display station or session to a program.

(2) In the release consistency model, a type of memory access that indicates that the processor is beginning an operation that may depend on some other processor; writes by processors that have performed previous release operations must now be made locally visible.

acquired activity

An activity that a program executing outside the process that contains the activity has gained access to, by issuing an ACQUIRE command. The activity remains acquired until the next syncpoint occurs. Acquiring an activity enables the program to read and write to the activity's data-containers, read the process data-containers of the process that contains the activity and issue various commands, including RUN and LINK, against the activity.  also acquired process.

acquired process

The process whose root activity a program currently has access to. A program acquires a process in one of two ways: either by defining it; or, if the process already exists, by issuing an ACQUIRE PROCESS command. The process remains acquired until the next syncpoint occurs. Acquiring a process enables the program to read and write to the process's data-containers, read and write to the root activity's data-containers and issue various commands, including RUN and LINK, against the process. A program can acquire only one process (root activity) or one descendant activity within the same unit of work.  also acquired activity.

acquire-program-device operation

An operation that makes a program device available for input or output operations.  also release-program-device operation.

acquirer

In e-commerce, the financial institution (or an agent of the financial institution) that receives from the merchant the financial data relating to a transaction and authorizes the transaction.

ACRI

 additional coding-related required information.

ACSE

 association control service element.

ACSE association

In OSI, an association that uses the services provided by association control service elements.

action

(1) An access control list (ACL) permission attribute.

(2) A description of the transition from one screen to the potential output screens within the dialog. An action occurs when the dialog is played back and it consists of the following: prompts, inputs, and an output screen.

(3) A defined task that an application performs on a managed object as a result of an event.

(4) In Struts, an instance of an Action class subclass that implements a portion of a Web application and returns a forward.

(5) A rule that contains a set of instructions. Actions can be combined with profilers into bindings, so that different instructions can be performed when the conditions within the profiler are met. Actions can return content from a data store.

(6) A single step that specifies a unit of work in a collaboration business process.  also action node, activity, code fragment, collaboration template.

(7) An event implemented by a Web site visitor, for example a shopping cart insert or delete.

(8) Behavior that accompanies a transition event. An action takes zero time and cannot be interrupted.

action bar

menu bar.

action bean

A logging bean used to log user activity during Web site visits. Action data is used to determine rule and campaign effectiveness.

action body

The part of a rule that contains actions to take if the rule evaluates to true.

Action class

In Struts, the superclass of all action classes.

action command

(1) A CICSPlex SM command that affects one or more of the resources represented in a view. Action commands can be issued from either the COMM field in the control area of the information display or the COMMAND field in a displayed view. Valid action commands are listed with the description of each view.

(2) Any command used to obtain or modify Management Information Base (MIB) variables.

action definition (ACTNDEF)

In real-time analysis, a definition of the type of external notification that is to be issued when the conditions identified in an analysis definition are true.

ActionForm class

In Struts, the superclass of all form-bean classes.

action group

An explicitly defined group of operations corresponding to Java commands that act on resources.

action list

An approved list of the actions, defined by a system administrator or some other workflow coordinator, that a user can perform in a workflow or document routing process.

action mapping

A Struts configuration file entry that associates an action name with an Action class, a form bean, and a local forward.

action node

A unit of work within an activity diagram of a collaboration template. Every action node has an associated Java code fragment that defines the actions in the unit of work. Within an activity diagram in Process Designer, an action node is represented by a rounded rectangle symbol.  also action, code fragment.

action object

An object created by applications that contain requests that set, clear, or display Management Information Base (MIB) object attributes on a machine.

Action Palette

An area containing folders and icons that can be selected to create state table actions.

action program

A type of EGL program part that delivers interactive pages to Web browsers.

action services

In OSI, callable services that cause OSI Communications Subsystem to take an action, such as a data transfer.  also callable service, extract service, set services.

action servlet

In Struts, a program that is started by the servlet container of a Web server to process a request that invokes an action, receives a forward from the action, and asks the servlet container to pass the request to the forward's URL.

action set

In Eclipse, a group of commands that a perspective contributes to the main toolbar and menu bar.

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 validate the contents of a policy set and then make it the active policy set.

(2) To allocate static storage for a program.  also bind.

(3) To make a resource ready to perform its function.

activate logical unit (ACTLU)

In SNA, a command used to start a session on a logical unit.

activate physical unit (ACTPU)

In SNA, a command used to start a session on a physical unit.

activation

(1) 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.

(2) The attachment of an activity to perform one of a series of processing steps. In order to perform all its processing, an activity may need to be activated several times. In between, it "sleeps".  also pseudoconversational.

(3) In EJB, the process of transferring an enterprise bean from secondary storage to memory. (Sun)  also passivation.

activation condition

A Boolean expression in a node within a business process that specifies when processing is to begin.

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

(1) Pertaining to 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.

(2) In cross-site mirroring, pertaining to the configuration state of a mirror copy that indicates geographic mirroring is being performed.

active-alternate pair

An SAA run-time library that establishes a common execution environment for a number of SAA programming languages.  also Systems Application Architecture.

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 class

(1) A class whose instances are active objects.  also active object.

(2) A class representing a thread of control in the system.

active document

The document that has processing focus. More than one document can be open at a time; however, only one of those documents is active.

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 log

(1) The portion of the DB2 Universal Database for z/OS and OS/390 log to which log records are written as they are generated. The active log always contains the most recent log records.

(2)  recovery log.

(3) The primary and secondary log files that are currently needed for recovery and rollback.  also archive log.

active meeting

A Sametime meeting that is in progress and available for participation.  also meeting status.

active member state

A state of a member of a data sharing group. An active member is identified with a group by the cross-system coupling facility (XCF), which associates the member with a particular task, address space, and MVS system. A member that is not active has either a failed member state or a quiesced member state.

active name

A Sametime awareness component that appears as an HTML real-time link to registered Sametime participants. An active name provides visual indication of a person's online status. The link color displays in green in real time when the person is online. Page visitors can click the link to start an instant messaging session.  also awareness component, presence list.

active object

(1) An instance of active class.  also active class.

(2) An object that owns a thread and can initiate control activity.

active open

In TCP/IP, the state of a connection that is actively providing a service.  also passive open.

active partition

In BMS, the partition that contains the cursor. It can be scrolled vertically. While a partition is active, the cursor wraps round at the viewport boundaries, and any input key transmits data from that partition only.

active policy set

The activated policy set that contains the policy rules currently in use by all client nodes assigned to the policy domain.

active record

An active subfile record or any record format that is currently shown on a display.  also inactive record.

active session

(1) In XRF, a session between a class 1 terminal and the active system.

(2) A session that connects the active CICS to an end user.

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 is issued to the subfile record format or to the subfile control record format when the DDS Subfile Initialize (SFLINZ) keyword for display files is in effect.

active subfile record

A record that is added to the subfile by a write operation, or a record that was initialized by the DDS keyword SFLINZ.  also inactive subfile record.

active system

In an XRF environment, the CICS system that currently supports the processing requests of the user.

active task

(1) A CICS task that is eligible for dispatching by CICS.

(2) During emergency restart, a task that completed an LUW and started another, but that did not cause any records to be written to the system log during the second LUW. During recovery-control processing, an LUW completion but no physical end-of-task (that is, task DETACH) is found.

active version

The most recent backup version of a file. The active version of a file cannot be deleted until a backup process detects that the user has either replaced the file with a newer version or has deleted the file from the workstation.  also inactive version, backup version.

active view

The view that has processing focus. Many views can be open simultaneously, but only one of those views is active.  also view.

active window

The window with which a user is currently interacting. This is the window that receives keyboard input. It is distinguishable by the unique color of its title bar and border.

ActiveX

A programming methodology that was developed by Microsoft and can be used to isolate software components and build functions using those components. ActiveX can be used with a variety of programming languages and in an Internet programming environment.

activity

(1) In Lotus Learning Management System, an item within a course outline that contains some tasks for the student to complete, such as taking a test or attending a live session in the LearningSpace -- Virtual Classroom.

(2) A set of steps that perform a portion of a scenario.  also action, activity diagram, scenario.

(3) A ClearCase Unified Change Management (UCM) object that tracks the work required to complete a development task. An activity includes a text headline, which describes the task, and a change set, which identifies all versions that developers create or modify while working on the activity. When working on a version, developers must associate that version with an activity. If your project is configured to use the UCM-ClearQuest integration, a corresponding ClearQuest record stores additional activity information, such as the state and owner of the activity.

(4) 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.

(5) In OSI, a logical unit of work into which peer application entities can separate the data that they exchange.

(6) A unit of work an individual, or a set of individuals working together as a team, may be asked to perform.

(7) In the process editor, the basic building block of a process that represents the usage of an operation that must take place to satisfy the overall business process. An activity is connected to links through its terminals.

(8) An operation in an activity plan that is performed on a set of targets on a specific schedule and that can depend upon the execution of other activities.

(9) In BTS, one part of a process managed by CICS business transaction services. Typically, an activity is part of a business transaction. A program that implements an activity differs from a traditional CICS application program only in its being designed to respond to BTS events.

(10) In Lotus Workflow, a unit of work representing one of the steps in a Lotus Workflow process or one of the steps required to work on a job, and represented as nodes in a process diagram. A binder, containing the documents necessary to complete a job, is routed from activity to activity.

activity completion event

An atomic event that fires when an activity completes.

activity condition

In System Manager, the criteria that must be met before the activity can start running.

activity diagram

(1) A diagram that represents the performance of a task or duty in a workflow, or the execution of a statement in a procedure.

(2) A graphical implementation of an activity, including actions, execution flow, and external calls. An activity diagram contains symbols that specify the steps, the order of the steps, and the logic that determines how they execute.  also activity.

activity identifier

A means of uniquely referring to an instance of a BTS activity. Activity identifiers are assigned by CICS.

activity instance

A Lotus Workflow activity that has been completed or is in progress. Information about the activity instance includes the name of the person who claimed the activity.

activity keypoint

A record of task and DCT entry status on the system log made on a periodic basis to facilitate the identification of transaction backout information during emergency restart. In the event of an uncontrolled shutdown and subsequent emergency restart, activity keypoints can shorten the process of backward scanning through the system log. Activity keypoints are written automatically by the system (system activity keypoints) or by the user (user activity keypoint).  also system activity keypoint, user activity keypoint.

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 log

 WebSphere log file. An audit trail of every function that has altered the data in the active ledger.

Activity Monitor

An DB2 Universal Database administration tool that provides a set of predefined reports to assist a database administrator in monitoring application performance and concurrency, resource consumption, and SQL statement usage of a database or database partition. The tool also provides recommendations to help a database administrator to diagnose the cause of database performance problems and to tune queries for optimal use of database resources.

activity owner

In Lotus Workflow, the person who claims an activity and is responsible for its completion.  also potential activity owner.

activity plan

A set of activities performed on a set of targets on a specified schedule. An activity plan specifies the activities contained in the plan, the schedule for execution, recursion information, notification information, and targets.

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.

activity tree

A hierarchy of activities. An activity tree may be several levels deep.

ACTLU

 activate logical unit.

ACTNDEF

 action definition.

actor

Someone or something external to the system that interacts with the system.

ACTPU

 activate 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.  also assumed decimal point.

actuator

(1) A device that causes mechanical motion.

(2) The device within an auxiliary storage device that moves the read/write heads.

adapter

(1) A set of software modules that communicate with an integration broker and with applications or technologies to perform tasks such as executing application logic and exchanging data.

(2) An interface between WebSphere MQ for z/OS and TSO, IMS, CICS, or batch address spaces. An adapter is an attachment facility that enables applications to access WebSphere MQ services.

(3) A mechanism for connecting two unlike parts or machines, or for electrically or physically connecting a device to a computer or to another device.

adapter card

A smaller card that attaches to a full-size card.

adapter configuration profile (ACP)

The profile that contains information for one or more event adapters.

adapter control block (ACB)

In NCP, a control block that contains line control information and the states of I/O operations for BSC lines, SS lines, or SDLC links.

adapter development kit ( ADK ADK)

A development environment for creating custom adapters.

adapter framework

The software that IBM provides to install, configure, and run an adapter.

adapter handler

In iSeries 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 iSeries server for iSeries Access functions.

adapter support software

The software used to operate adapters in a PC system and provide a common interface to application programs.

adaptive pacing

 adaptive session-level pacing.

adaptive session-level pacing (adaptive pacing, adaptive session pacing)

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 availability and 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 and endpoint nodes.  also fixed session-level pacing.

adaptive session pacing

 adaptive session-level pacing.

ad copy

The information, images and other media used to support a marketing activity. Also referred to as sales collateral.

add authority

A data authority that allows the user to add entries to an object; for example, to add job entries to a job queue or to add records to a file.  also delete authority.

add-in

A third-party application that adds new function to the iSeries Access for Windows licensed program.

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. An example of additional coding-related required information is the ranges for valid first bytes of double-byte code points in a PC mixed-byte coded character set.

additional instructor

A LearningSpace - Virtual Classroom instructor other than the primary instructor, who attends a session and can help out the primary instructor, for example, by teaching some of the session or leading a breakout session. Each session can have any number of additional instructors while the primary instructor is in charge of a session.

additional materials

In LearningSpace - Virtual Classroom, items added to the Additional Materials folder at the bottom of an outline, to be presented at some time during a Virtual Classroom session, but not in any particular order or at any specific time during the session.

address

(1) The second part of a two-part user identification used to send distributions.

(2) The unique code assigned to each device, workstation or system connected to a network.

(3) In word processing, the location, identified by an address code, of a specific section of the recording medium or storage. Also, the numbers that identify such a location.

address book

A collection of shipping and billing addresses owned by a customer. These are useful for a customer who wants to purchase gifts and ship them to different addresses.

address class

In Internet communications, the categorization by the part of an IP address that distinguishes the network address from the host address. Class A addresses allocate 7 bits to the network ID and 24 bits to the host ID. Class B addresses allocate 14 bits to the network ID and 16 bits to the host ID. Class C addresses allocate 21 bits to the network ID and 8 bits to the host ID. Class D addresses contain 1110 in the first 4 bits and identify the address as a multicast. The remaining 28 bits in the class D address specify a particular multicast group.

addressed direct access

In VSAM, the retrieval or storage of a data record identified by its relative byte address.

addressed sequential access

In VSAM, the retrieval or storage of a data record in its entry sequence relative to the previously stored or retrieved record.

address expansion

The process by which the full name of a financial institution is obtained using the SWIFT address, telex correspondent's address, or a nickname.

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.

addressing mode ( AMODE AMODE)

The mode, 24-bit or 31-bit, in which a program holds and processes addresses. The AMODE linkage-editor control statement specifies the addressing mode of the load module produced.

address mapping table (AMT)