This glossary defines special terms used in the CICS® Universal Client library.
- 3270 emulation
- The use of software that enables a client to emulate an IBM® 3270 display
station or printer, and to use the functions of an IBM host system.
- abnormal end of task (abend)
- The termination of a task, job, or subsystem because of an error condition
that recovery facilities cannot resolve.
- Advanced program-to-program communication (APPC)
- An implementation of the SNA/SDLC LU 6.2 protocol that allows interconnected
systems to communicate and share the processing of programs. The Client daemon uses APPC
to communicate with CICS server
systems.
- APAR
- See Authorized program analysis report.
- API
- Application programming interface.
- applet
- A small application program that performs a specific task and is usually
portable between operating systems. Often written in Java™,
applets can be downloaded from the Internet and run in a Web browser.
- application identifier
- The name by which a CICS system is known in a network of interconnected CICS systems. CICS
Transaction Gateway application identifiers do not need to be defined in SYS1.VTAMLST.
The CICS APPLID
is specified in the APPLID system initialization parameter.
- application programming interface (API)
- A functional interface that allows an application program that is written
in a high-level language to use specific data or functions of the operating
system or another program.
- APPLID
- See application identifier.
- ARM
- See automatic restart management.
- Authorized program analysis report (APAR)
- A request for correction of a defect in a current release of an IBM-supplied
program.
- ATI
- See automatic transaction initiation.
- attach
- In SNA, the request unit that flows on a session to initiate a conversation.
- Attach Manager
- The component of APPC that matches attaches received from remote computers
to accepts issued by local programs.
- autoinstall
- A method of creating and installing resources dynamically as terminals
log on, and deleting them at logoff.
- automatic restart manager
- A z/OS® recovery
function that can improve the availability of specific batch jobs or started
tasks, and therefore result in faster resumption of productive work. Acronym:
ARM.
- automatic transaction initiation (ATI)
- The initiation of a CICS transaction
by an internally generated request, for example, the issue of an EXEC CICS START command
or the reaching of a transient data trigger level. CICS resource
definition can associate a trigger level and a transaction with a transient
data destination. When the number of records written to the destination reaches
the trigger level, the specified transaction is automatically initiated.
- bean
- A definition or instance of a JavaBeans™ component. See also JavaBeans.
- BIND command
- In SNA, a request to activate a session between two logical units (LUs).
- business logic
- The part of a distributed application that is concerned with the application
logic rather than the user interface of the application. Compare with presentation
logic.
- CA
- See certificate authority.
- callback
- A way for one thread to notify another application thread that an event
has happened.
- certificate authority
- In computer security, an organization that issues certificates. The certificate
authority authenticates the certificate owner's identity and the services
that the owner is authorized to use. It issues new certificates and revokes
certificates from users who are no longer authorized to use them.
- change-number-of-sessions (CNOS)
- An internal transaction program that regulates the number of parallel
sessions between the partner LUs with specific characteristics.
CICS connectivity
components
A generic reference to the Client daemon, EXCI, and the IPIC protocol.
- CICS on System/390®
- A generic reference to the products CICS Transaction Server for z/OS, CICS for MVS/ESA™, CICS Transaction Server for VSE/ESA™,
and CICS/VSE®.
- CICS TS
- Abbreviation of CICS Transaction Server.
- class
- In object-oriented programming, a model or template that can be instantiated
to create objects with a common definition and therefore, common properties,
operations, and behavior. An object is an instance of a class.
- classpath
- In the execution environment, an environment variable keyword that specifies
the directories in which to look for class and resource files.
- Client API
- The Client API is the interface used by Client applications to invoke services
in CICS using the Client daemon. See External Call Interface, External Presentation Interface, and External Security Interface.
- Client application
- The client application is a user application written in a supported programming language,
other than Java, that uses the Client API.
- Client daemon
- The Client daemon, process cclclnt, exists only on UNIX®, Windows®, and Linux®.
It manages network connections to CICS servers. It processes ECI, EPI,
and ESI requests, sending and receiving the appropriate flows from the CICS server
to satisfy the application requests. It uses the CLIENT section of ctg.ini for
its configuration.
- client/server
- Pertaining to the model of interaction in distributed data processing
in which a program on one computer sends a request to a program on another
computer and awaits a response. The requesting program is called a client;
the answering program is called a server.
- CNOS
- See Change-Number-of-Sessions.
- code page
- An assignment of hexadecimal identifiers (code points) to graphic characters.
Within a given code page, a code point can have only one meaning.
- color mapping file
- A file that is used to customize the 3270 screen color attributes on client
workstations.
- communication area (COMMAREA)
- A communication area that is used for passing data both between programs
within a transaction and between transactions.
- configuration file
- A file that specifies the characteristics of a program, system device,
server or network.
- connection
- In data communication, an association established between functional units
for conveying information.
- In Open Systems Interconnection architecture, an association established
by a given layer between two or more entities of the next higher layer for
the purpose of data transfer.
- In TCP/IP, the path between two protocol application that provides reliable
data stream delivery service.
- In Internet, a connection extends from a TCP application on one system
to a TCP application on another system.
- control table
- In CICS,
a storage area used to describe or define the configuration or operation of
the system.
- conversation
- A connection between two programs over a session that allows them to communicate
with each other while processing a transaction.
- conversation security
- In APPC, a process that allows validation of a user ID or group ID and
password before establishing a connection.
- daemon
- A program that runs unattended to perform continuous or periodic systemwide
functions, such as network control. A daemon may be launched automatically,
such as when the operating system is started, or manually.
- data link control (DLC)
- A set of rules used by nodes on a data link (such as an SDLC link or a
token ring) to accomplish an orderly exchange of information.
- DBCS
- See double-byte character set.
- dependent logical unit
- A logical unit that requires assistance from a system services control
point (SSCP) to instantiate an LU-to-LU session.
- deprecated
- Pertaining to an entity, such as a programming element or feature, that
is supported but no longer recommended, and that might become obsolete.
- digital certificate
- An electronic document used to identify an individual, server, company,
or some other entity, and to associate a public key with the entity. A digital
certificate is issued by a certificate authority and is digitally signed by
that authority.
- digital signature
- Information that is encrypted with an entity's private key and is appended
to a message to assure the recipient of the authenticity and integrity of
the message. The digital signature proves that the message was signed by the
entity that owns, or has access to, the private key or shared secret symmetric
key.
- distributed application
- An application for which the component application programs are distributed
between two or more interconnected processors.
- distributed processing
- The processing of different parts of the same application in different
systems, on one or more processors.
- distributed program link (DPL)
- A link that enables an application program running on one CICS system
to link to another application program running in another CICS system.
- domain
- In the Internet, a part of a naming hierarchy in which the domain name
consists of a sequence of names (labels) separated by periods (dots).
- domain name
- In TCP/IP, a name of a host system in a network.
- domain name server
- In TCP/IP, a server program that supplies name-to-address translation
by mapping domain names to internet addresses. Synonymous with name server.
- dotted decimal notation
- The syntactical representation for a 32-bit integer that consists of four
8-bit numbers written in base 10 with periods (dots) separating them. It is
used to represent IP addresses.
- double-byte character set (DBCS)
- A set of characters in which each character is represented by 2 bytes.
Languages such as Japanese, Chinese and Korean, which contain more symbols
than can be represented by 256 code points, require double-byte character
sets. Because each character requires 2 bytes, the typing, display, and printing
of DBCS characters requires hardware and programs that support DBCS. Contrast
with single-byte character set.
- DPL
- See distributed program link.
- EBCDIC
- See Extended binary-coded decimal interchange code.
- ECI
- See external call interface.
- EJB
- See Enterprise JavaBeans.
- emulation program
- A program that allows a host system to communicate with a workstation
in the same way as it would with the emulated terminal.
- emulator
- A program that causes a computer to act as a workstation attached to another
system.
- encryption
- The process of transforming data into an unintelligible form in such a
way that the original data can be obtained only by using a decryption process.
- enterprise bean
- A Java component
that can be combined with other resources to create J2EE applications. There
are three types of enterprise beans: entity beans, session beans, and message-driven
beans.
- Enterprise JavaBeans
- A component architecture defined by Sun Microsystems for the development
and deployment of object-oriented, distributed, enterprise-level applications
(J2EE).
- environment variable
- A variable that specifies the operating environment for a process. For
example, environment variables can describe the home directory, the command
search path, the terminal in use, and the current time zone.
- EPI
- See external presentation interface.
- ESI
- See external security interface.
- Ethernet
- A local area network that allows multiple stations to access the transmission
medium at will without prior coordination, avoids contention by using carrier
sense and deference, and resolves contention by using collision detection
and transmission. Ethernet uses carrier sense multiple access with collision
detection (CSMA/CD).
- EXCI
- See External CICS Interface.
- external call interface (ECI)
- A facility that allows a non-CICS program
to run a CICS program.
Data is exchanged in a COMMAREA as for normal CICS interprogram
communication.
- Extended binary-coded decimal interchange code (EBCDIC)
- A coded character set of 256 8-bit characters developed for the representation
of textual data.
- extended logical unit of work (extended LUW)
- A logical unit of work that is extended across successive ECI requests
to the same CICS server.
- External CICS Interface
(EXCI)
- The EXCI is an MVS® application programming interface provided by CICS Transaction
Server for z/OS that enables a non-CICS program to call a CICS program and to
pass and receive data using a COMMAREA or container. The CICS application
program is invoked as if linked-to by another CICS application program.
- external presentation interface (EPI)
- A facility that allows a non-CICS program
to appear to CICS as
one or more standard 3270 terminals. 3270 data can be presented to the user
by emulating a 3270 terminal or by using a graphical user interface.
- external security interface (ESI)
- A facility that enables client applications to verify and change passwords
for user IDs on CICS servers.
- firewall
- A configuration of software that prevents unauthorized traffic between
a trusted network and an untrusted network.
- gateway
- A device or program used to connect two systems or networks.
- host
- A computer that is connected to a network (such as the Internet or an
SNA network) and provides an access point to that network. The host can be
any system; it does not have to be a mainframe.
- host address
- An IP address that is used to identify a host on a network.
- host ID
- In TCP/IP, that part of the Internet address that defines the host on
the network. The length of the host ID depends on the type of network or network
class (A, B, or C).
- host name
- In the Internet suite of protocols, the name given to a computer. Sometimes,
host name is used to mean the fully qualified domain name; other times, it
is used to mean the most specific subname of a fully qualified domain name.
For example, if mycomputer.city.company.com is the fully qualified domain
name, either of the following may be considered the host name: mycomputer.city.company.com,
mycomputer.
- hover help
- Information that can be viewed by holding a mouse over an item such as
an icon in the user interface.
- HTTP
- See Hypertext Transfer Protocol.
- HTTPS
- See Hypertext Transfer Protocol Secure.
- Hypertext Transfer Protocol
- In the Internet suite of protocols, the protocol that is used to transfer
and display hypertext and XML documents.
- Hypertext Transfer Protocol Secure
- A TCP/IP protocol that is used by World Wide Web servers and Web browsers
to transfer and display hypermedia documents securely across the Internet.
- iKeyman
- A tool for maintaining digital certificates for JSSE.
- independent logical unit
- A logical unit (LU) that can both send and receive a BIND, and which supports
single, parallel, and multiple sessions. See BIND.
- Internet Architecture Board
- The technical body that oversees the development of the internet suite
of protocols known as TCP/IP.
- Internet Protocol (IP)
- In TCP/IP, a protocol that routes data from its source to its destination
in an Internet environment.
- interoperability
- The capability to communicate, execute programs, or transfer data among
various functional units in a way that requires the user to have little or
no knowledge of the unique characteristics of those units.
- IP
- Internet Protocol.
- IP address
- A unique address for a device or logical unit on a network that uses the
IP standard.
- J2EE
- See Java 2
Platform Enterprise Edition
- J2EE Connector architecture (JCA)
- A standard architecture for connecting the J2EE platform to heterogeneous
enterprise information systems (EIS).
- Java
- An object-oriented programming language for portable interpretive code
that supports interaction among remote objects.
- Java 2
Platform Enterprise Edition (J2EE)
- An environment for developing and deploying enterprise applications, defined
by Sun Microsystems Inc. The J2EE platform consists of a set of services,
application programming interfaces (APIs), and protocols that allow multitiered,
Web-based applications to be developed.
- JavaBeans
- As defined for Java by Sun Microsystems, a portable, platform-independent,
reusable component model.
- Java Client
application
- The Java client application is a user application written in Java, including servlets
and enterprise beans, that uses the Gateway classes.
- Java Development
Kit (JDK)
- The name of the software development kit that Sun Microsystems provided
for the Java platform,
up to and including v 1.1.x. Sometimes used erroneously to mean the Java platform
or as a generic term for any software developer kits for Java.
- Java Native
Interface (JNI)
- A programming interface that allows Java code
running in a Java virtual
machine to work with functions that are written in other programming languages.
- Java Runtime
Environment (JRE)
- A subset of the Java Software
Development Kit (SDK) that supports the execution, but not the development,
of Java applications.
The JRE comprises the Java Virtual
Machine (JVM), the core classes, and supporting files.
- Java Secure
Socket Extension (JSSE)
- A Java package
that enables secure Internet communications. It implements a Java version
of the Secure Sockets Layer (SSL) and Transport Layer Security (TSL) protocols
and supports data encryption, server authentication, message integrity, and
optionally client authentication.
- Java virtual
machine (JVM)
- A software implementation of a processor that runs compiled Java code
(applets and applications).
- JDK
- See Java development
kit (JDK).
- JCA
- See J2EE Connector Architecture (JCA).
- JNI
- See Java Native
Interface (JNI).
- JRE
- See Java Runtime
Environment
- JSSE
- See Java Secure
Socket Extension (JSSE).
- JVM
- See Java Virtual
Machine (JVM).
- keyboard mapping
- A list that establishes a correspondence between keys on the keyboard
and characters displayed on a display screen, or action taken by a program,
when that key is pressed.
- key ring
- In the JSSE protocol, a file that contains public keys, private keys,
trusted roots, and certificates.
- logical unit (LU)
- In SNA, a port through which an end user accesses the SNA network in order
to communicate with another end user and through which the end user accesses
the functions provided by system services control points (SSCP). An LU can
support at least two sessions, one with an SSCP and one with another LU, and
may be capable of supporting many sessions with other logical units. See network
addressable unit, primary logical unit, secondary logical unit.
- logical unit 6.2 (LU 6.2)
- A type of logical unit that supports general communications between programs
in a distributed processing environment.
- The LU type that supports sessions between two applications using APPC.
- logical unit of work (LUW)
- A recoverable unit of work performed within CICS.
- LU-LU session
- In SNA, a session between two logical units (LUs) in an SNA network. It
provides communication between two end users, or between an end user and an
LU services component.
- LU-LU session type 6.2
- In SNA, a type of session for communication between peer systems. Synonymous
with APPC protocol.
- LUW
- See logical unit of work.
- managed mode
- Describes an environment in which connections are obtained from connection
factories that the J2EE server has set up. Such connections are owned by the
J2EE server.
- medium access control (MAC) sublayer
- One of two sublayers of the ISO Open Systems Interconnection data link
layer proposed for local area networks by the IEEE Project 802 Committee on
Local Area Networks and the European Computer Manufacturers Association (ECMA).
It provides functions that depend on the topology of the network and uses
services of the physical layer to provide services to the logical link control
(LLC) sublayer. The OSI data link layer corresponds to the SNA data link control
layer.
- method
- In object-oriented programming, an operation that an object can perform.
An object can have many methods.
- mode
- In SNA, a set of parameters that defines the characteristics of a session
between two LUs.
- name server
- In TCP/IP, synonym for Domain Name Server. In Internet communications,
a host that translates symbolic names assigned to networks and hosts into
Internet addresses.
- network address
- In SNA, an address, consisting of subarea and element fields, that identifies
a link, link station, or network addressable unit (NAU). Subarea nodes use
network addresses; peripheral nodes use local addresses. The boundary function
in the subarea node to which a peripheral node is attached transforms local
addresses to network addresses and vice versa. See also network name.
- network addressable unit (NAU)
- In SNA, a logical unit, a physical unit, or a system services control
point. The NAU is the origin or the destination of information transmitted
by the path control network. See also logical unit, network address, network
name.
- network name
- In SNA, the symbolic identifier by which end users refer to a network
addressable unit (NAU), link station, or link. See also network address.
- node type
- In SNA, a designation of a node according to the protocols it supports
and the network addressable units (NAUs) it can contain. Four types are defined:
1, 2, 4, and 5. Type 1 and type 2 nodes are peripheral nodes; type 4 and type
5 nodes are subarea nodes.
- nonmanaged mode
- An environment in which the application is responsible for generating
and configuring connection factories. The J2EE server does not own or know
about these connection factories and therefore provides no Quality of Service
facilities.
- object
- In object-oriented programming, a concrete realization of a class that
consists of data and the operations associated with that data.
- object-oriented (OO)
- Describing a computer system or programming language that supports objects.
- pacing
- A technique by which a receiving station controls the rate of transmission
of a sending station to prevent overrun.
- parallel session
- In SNA, two or more concurrently active sessions between the same two
LUs using different pairs of network addresses. Each session can have independent
session parameters.
- PING
- In Internet communications, a program used in TCP/IP networks to test
the ability to reach destinations by sending the destinations an Internet
Control Message Protocol (ICMP) echo request and waiting for a reply.
- partner logical unit (PLU)
- In SNA, the remote participant in a session.
- partner transaction program
- The transaction program engaged in an APPC conversation with a local transaction
program.
- PLU
- See primary logical unit and partner logical unit.
- port
- An endpoint for communication between devices, generally referring to
a logical connection. A 16-bit number identifying a particular Transmission
Control Protocol (TCP) or User Datagram Protocol (UDP) resource within a given
TCP/IP node.
- presentation logic
- The part of a distributed application that is concerned with the user
interface of the application. Compare with business logic.
- primary logical unit (PLU)
- In SNA, the logical unit that contains the primary half-session for a
particular logical unit-to-logical unit (LU-to-LU) session. See also secondary
logical unit.
- protocol boundary
- The signals and rules governing interactions between two components within
a node.
- Resource Access Control Facility (RACF®)
- An IBM licensed
program that provides access control by identifying users to the system; verifying
users of the system; authorizing access to protected resources; logging detected
unauthorized attempts to enter the system; and logging detected accesses to
protected resources.
- region
- In workload management on CICS Universal Client for Windows, an instance
of a CICS server.
- remote procedure call (RPC)
- A protocol that allows a program on a client computer to run a program
on a server.
- request unit (RU)
- In SNA, a message unit that contains control information such as a request
code, or function management (FM) headers, end-user data, or both.
- request/response unit
- A generic term for a request unit or a response unit. See also request
unit and response unit.
- response file
- A file that contains predefined values that is used instead of someone
having to enter those values one at a time. See CID methodology.
- response unit (RU)
- A message unit that acknowledges a request unit; it may contain prefix
information received in a request unit.
- Resource Recovery Services (RRS)
- A z/OS facility
that provides two-phase sync point support across participating resource managers.
- rollback
- An operation in a transaction that reverses all the changes made during
the unit of work. After the operation is complete, the unit of work is finished.
Also known as a backout.
- RU
- Request unit. Response unit.
- RPC
- See remote procedure call.
- SBCS
- See single-byte character set.
- secondary logical unit (SLU)
- In SNA, the logical unit (LU) that contains the secondary half-session
for a particular LU-LU session. Contrast with primary logical unit. See also logical
unit.
- Secure Sockets Layer (SSL)
- A security protocol that provides communication privacy. SSL enables client/server
applications to communicate in a way that is designed to prevent eavesdropping,
tampering, and message forgery. SSL applies only to internet protocols, and
is not applicable to SNA.
- servlet
- A Java program
that runs on a Web server and extends the server's functionality by generating
dynamic content in response to Web client requests. Servlets are commonly
used to connect databases to the Web.
- session limit
- In SNA, the maximum number of concurrently active logical unit to logical
unit (LU-to-LU) sessions that a particular logical unit (LU) can support.
- single-byte character set (SBCS)
- A character set in which each character is represented by 1 byte. Contrast
with double-byte character set.
- sign-on capable terminal
- A sign-on capable terminal allows sign-on transactions, either CICS-supplied (CESN)
or user-written, to be run. Contrast with sign-on incapable terminal.
- SIT
- See system initialization table.
- SNA sense data
- An SNA-defined encoding of error information In SNA, the data sent with
a negative response, indicating the reason for the response.
- SNASVCMG mode name
- The SNA service manager mode name. This is the architecturally-defined
mode name identifying sessions on which CNOS is exchanged. Most APPC-providing
products predefine SNASVCMG sessions.
- socket
- A network communication concept, typically representing a point of connection
between a client and a server. A TCP/IP socket will normally combine a host
name or IP address, and a port number.
- SSL
- See Secure Sockets Layer (SSL).
- SSLight
- An implementation of SSL, written in Java,
and no longer supported by CICS Transaction Gateway.
- system initialization table
- A table containing parameters used to start a CICS control
region.
- System Management Interface Tool (SMIT)
- An interface tool of the AIX® operating system for installing, maintaining, configuring,
and diagnosing tasks.
- standard error
- In many workstation-based operating systems, the output stream to which
error messages or diagnostic messages are sent.
- subnet
- An interconnected, but independent segment of a network that is identified
by its Internet Protocol (IP) address.
- subnet address
- In Internet communications, an extension to the basic IP addressing scheme
where a portion of the host address is interpreted as the local network address.
- sync point
- A logical point in the execution of program where the changes made by
the program are consistent and complete, and can be committed. The output,
which has been held up to that point, is sent to its destination, the input
is removed from the message queues, and updates are made available to other
applications. When a program terminates abnormally, CICS recovery and restart facilities do
not backout updates prior to the last completed sync point.
- Systems Network Architecture (SNA)
- An architecture that describes the logical structure, formats, protocols,
and operational sequences for transmitting information units through the networks
and also the operational sequences for controlling the configuration and operation
of networks.
- System SSL
- An implementation of SSL, no longer supported by CICS Transaction Gateway on z/OS.
- TCP62
- SNA logical unit type 62 (LU62) protocol encapsulated in TCP/IP. This
allows APPC applications to communicate over a TCP/IP Network without changes
to the applications.
- TCP/IP
- See Transmission Control Protocol/Internet Protocol.
- TCP/IP load balancing
- The ability to distribute TCP/IP connections across target servers.
- terminal emulation
- The capability of a microcomputer or personal computer to operate as if
it were a particular type of terminal linked to a processing unit and to access
data. See also emulator, emulation program.
- thread
- A
stream of computer instructions that is in control of a process. In some operating
systems, a thread is the smallest unit of operation in a process. Several
threads can run concurrently, performing different jobs.
- timeout
- A time interval that is allotted for an event to occur or complete before
operation is interrupted.
- TLS
- See Transport Layer Security (TLS).
- token-ring network
- A local area network that connects devices in a ring topology and allows
unidirectional data transmission between devices by a token-passing procedure.
A device must receive a token before it can transmit data.
- trace
- A record of the processing of a computer program. It exhibits the sequences
in which the instructions were processed.
- transaction program
- A program that uses the Advanced Program-to-Program Communications (APPC)
application programming interface (API) to communicate with a partner application
program on a remote system.
- Transmission Control Protocol/Internet Protocol (TCP/IP)
- An industry-standard, nonproprietary set of communications protocols that
provide reliable end-to-end connections between applications over interconnected
networks of different types.
- Transport Layer Security (TLS)
- A security protocol that provides communication privacy. TLS enables client/server
applications to communicate in a way that is designed to prevent eavesdropping,
tampering, and message forgery. TLS applies only to internet protocols, and
is not applicable to SNA. TLS is also known as SSL 3.1.
- type 2.0 node
- A node that attaches to a subarea network as a peripheral node and provides
a range of end-user services but no intermediate routing services.
- type 2.1 node
- An SNA node that can be configured as an endpoint or intermediate routing
node in a network, or as a peripheral node attached to a subarea network.
- Uniform Resource Locator (URL)
- A sequence of characters that represent information resources on a computer
or in a network such as the Internet. This sequence of characters includes
(a) the abbreviated name of the protocol used to access the information resource
and (b) the information used by the protocol to locate the information resource.
- unit of recovery (UR)
- A defined package of work to be performed by the RRS.
- unit of work (UOW)
- A recoverable sequence of operations performed by an application between
two points of consistency. A unit of work begins when a transaction starts
or at a user-requested sync point. It ends either at a user-requested sync
point or at the end of a transaction.
- user session
- Any APPC session other than a SNASVCMG session.
- verb
- A reserved word that expresses an action to be taken by an application
programming interface (API), a compiler, or an object program.
- In SNA, the general name for a transaction program’s request for communication
services.
- Web browser
- A software program that sends requests to a Web server and displays the
information that the server returns.
- Web server
- A software program that responds to information requests generated by
Web browsers.
- wide area network (WAN)
- A network that provides communication services to a geographic area larger
than that served by a local area network or a metropolitan area network, and
that may use or provide public communication facilities.
- wrapping trace
- A configuration in which the Maximum Client wrap size setting is
greater than 0. The total size of Client daemon binary
trace files is limited to the value specified in the Maximum Client wrap
size setting. With standard I/O tracing, two files, called cicscli.bin and cicscli.wrp,
are used; each can be up to half the size of the Maximum Client wrap size.
XA requests
An XA request is any request sent or received by the CICS Transaction
Gateway in support of an XA transaction. These requests include the XA commands
commit, complete, end, forget, prepare, recover, rollback, and start.
- XA transaction
- A global transaction that adheres to the X/Open standard for distributed
transaction processing (DTP.)