|
B
B1
A class of computer system security, as defined in the U.S. government's Trusted
Computer System Evaluation Criteria (TCSEC). B1 systems offer a higher degree of
security than C2 systems by enforcing the concept of information sensitivity
classifications with corresponding user clearance requirements. See TCSEC.
B2B (business-to-business)
A form of e-commerce conducted among businesses, typically because of formal,
contractual arrangements. B2B functions include:
• Sophisticated Web authorization and control for delivery of sensitive price,
contract and content information for each partner
• Catalogs that provide custom views based on access controls and parametric
searches
• Order entry functions such as standardized "ship to" locations, dynamic order
recalculation and payment options
B2C (business-to-consumer)
A form of e-commerce conducted between businesses and consumers. B2C
commerce includes both formal relationships (e.g., customers with subscription based
services or content) and ad hoc relationships (formed in real time to enable a
new user to buy, sell or access information).
B2E (business-to-employee)
The use and leverage of e-business approaches and Internet technologies to deliver
a comprehensive set of services to an enterprise's employees and their managers.
B2E is the automated delivery of enterprise relationship management (ERM), but
goes beyond ERM's support of human capital management (HCM) to include
workforce management and workforce optimization. The full term is sometimes
presented as "business-to-enterprise." See ERM and HCM.
B2G (business-to-government)
E-commerce between public- and private-sector enterprises. Government-tobusiness
(G2B) is the more common term used to describe these relationships. See
G2B.
backbone
A high-speed line or series of lines that forms the fastest (measured in bandwidth)
path through a network.
backbone network
A high-speed transmission facility, or an arrangement of such facilities, designed to
interconnect lower-speed distribution channels or clusters of dispersed user devices.
backbone router
A router designed to be used to construct backbone networks using leased lines.
Backbone routers typically do not have any built-in digital dial-up access wide-area
network interfaces.
back end
The server side of a client/server system, as distinguished to the front end (client
side). See front end.
background task
A task performed by a system "in the background" while a primary application is
running.
backhaul
The terrestrial link between an earth station and a switching or data center.
back office
A general term for the category of applications that support non-customer-facing,
core enterprise functions. Examples include enterprise resource planning (ERP),
supply chain management (SCM) and human-resource systems. See ERP, SCM and
front office.
backplane
The physical connection between the interface cards and the data and power
distribution buses in a piece of computer hardware (such as a server) or a network
device (such as a router, hub or switch).
backup server
A software or hardware system that copies or "shadows" the contents of a server,
providing redundancy.
backward explicit congestion notification (see BECN)
balanced scorecard
A measurement-based strategic management system originated by Robert Kaplan
and David Norton that aligns business activities and strategy, and monitors
performance in meeting strategic goals over time. Many enterprises use the
balanced-scorecard approach to manage enterprise performance.
band
1. A range of frequencies between two defined limits.
2. In wide-area telephone service (WATS), the specific geographical area in which
the customer is entitled to call. See WATS.
bandwidth
1. The range of frequencies that can pass over a given transmission channel. The
bandwidth determines the rate at which information can be transmitted through
the circuit: the greater the bandwidth, the more information that can be sent in a
given amount of time. Bandwidth is typically measured in bits per second.
Increasing bandwidth potential has become a high priority for network planners
due to the growth of multimedia, including videoconferencing, and the increased
use of the Internet.
2. The range of frequencies on either side of the carrier frequency within which
the signal-to-noise ratio (SNR) of a modulated signal is tested. See SNR.
Banking Industry Technology Secretariat (see BITS)
banner
An advertisement that appears on a Web site. The banner ad format combines
graphic and textual content to induce the site user to "click through" for further
information on an advertised product or service.
BAPI (Biometric Application Programming Interface)
A biometric interface specification developed by I/O Software. In 1998, I/O Software
joined the BioAPI Consortium, and its work on BAPI was merged into the BioAPI
specification. See BioAPI.
BAPI (Business Application Programming Interface)
A set of documented, server-side interfaces to one or more R/3 processes, from SAP.
BAPI packages multiple internal functions to enable programmatic access to such
higher-order tasks as checking customer numbers, providing product descriptions,
selecting products, creating quotations or creating orders.
baseband
Transmitting a signal in its original, unmodulated form. A baseband signal can be
analog (e.g., originating from a telephone) or digital (e.g., originating from a
computer).
base station
Within a mobile radio system, a fixed radio station providing communication with
mobile stations and, where applicable, with other base stations and the public
telephone network.
BASIC (Beginner's All-Purpose Symbolic Instruction Code)
A high-level algebraic programming language developed at Dartmouth College in the
1960s and widely taught to beginning programmers. It is simple to use but lacks
speed.
basic input/output system (see BIOS)
basic phone
A voice-centric device designed to provide only voice functions and limited contact
management, as distinguished from an enhanced phone or smartphone (see
separate entries).
Basic Rate Access (see BRA)
Basic Rate Interface (see BRI)
Basis
SAP's proprietary middleware between the SAP graphical user interface and R/3
application servers. See R/3.
batch processing
The processing of application programs and their data individually, with one batch
being completed before the next is started. It is a planned processing procedure
typically used for purposes such as preparing payrolls and maintaining inventory
records.
baud
A unit of signaling speed. The speed in bauds is the number of discrete changes per
second in some aspect of a signal (such as voltage in a wire). Transmission speeds
are now more commonly measured bits per second (bps), rather than bauds. The
two terms were roughly synonymous until modems began to exceed 2,400 bps, after
which they diverged more widely as modem speed increased. Modems now use
coding techniques to transmit more than one bit per baud, making their true baud
ratings irrelevant.
BBBOnLine
The Better Business Bureau's Internet program. BBBOnLine's Privacy Seal identifies
Internet companies that use appropriate processes and operations to protect the
confidentiality of consumer information. Companies must reapply for licensing each
year; during this process, their operations are re-evaluated to ensure that they meet
all requirements for displaying the program emblem.
BBP (Business-to-Business Procurement)
A catalog-based procurement product from SAP.
BBS (bulletin board system)
A network-based system for communicating and sharing information in the form of
posted messages, usually on the Web. (The full term is sometimes presented as
"bulletin board service.")
bCentral
Microsoft's Web technology for running businesses. bCentral offers tools that include
Web sites, business-class e-mail, and sales and customer management applications.
B channel (bearer channel)
One of two 64-kilobit-per-second data channels in the Integrated Services Digital
Network (ISDN) Basic Rate Interface (see BRI).
BCP (business continuity planning)
A broad approach to planning for the recovery of an enterprise's entire business
process in event of a massive disruption caused by catastrophic event (such as a
natural disaster or terrorist attack). BCP includes plans for work facilities, telephone
service, workstations, servers, applications, network connections and any other
resources required for the continuity of business operations as well as processes
for communicating critical information to enterprise personnel, and steps to address
their safety and welfare. The term is often used interchangeably with "disaster
recovery planning" (DRP); however, the latter term is more commonly associated
with IT system recovery alone, without the broader business context. See DRP.
BCV (business continuance volume)
EMC's name for the data volumes created by its Symmetrix TimeFinder feature.
BCVs are copies of active data volumes that are separately addressed from the
source volume. Incremental updates can be made to the BCV, or the data on the
BCV can be copied back to the source disk.
bearer
A communications term meaning "information-bearing." For example, a bearer
channel (B channel) is one that bears the actual information (e.g., voice signals or
data) being transmitted. See B channel.
bearer channel (see B channel)
bearer service
A network technology or vendor that provides wireless transmission. Examples of
bearer service technologies include Mobitex, cellular digital packet data (CDPD),
Global System for Mobile Communications (GSM) and general packet radio service
(GPRS). The vendors are too numerous to mention, but consist of the world's
prominent vendors of GSM, time division multiple access (TDMA), code division
multiple access (CDMA), packet radio and paging. See CDPD, GSM, GPRS, TDMA
and CDMA.
BECN (backward explicit congestion notification)
Part of the explicit congestion notification (ECN) technique used in frame relay
networks. The BECN is a one-bit field containing data sent by a frame relay
assembler/disassembler (FRAD) on the receiving end of a transmission backward to
the FRAD on the transmitting end. This data alerts the transmitting FRAD that there
is congestion on the line, and that network resources are insufficient to support
transmission at the current rate. See ECN and FRAD.
Beginner's All-Purpose Symbolic Instruction Code (see BASIC)
Bell Communications Research (see Bellcore)
Bellcore (Bell Communications Research)
A jointly owned, financed and centrally staffed organization of the regional holding
companies formed after the AT&T divestiture in 1984, charged with establishing
network standards and interfaces. Bellcore changed its name to Telcordia
Technologies in 1999.
Bell operating company (see BOC)
benchmark
A metric used to quantify performance for comparative purposes. See
benchmarking.
benchmarking
1. Measuring the performance of hardware components or systems (such as
processors or servers) using standard benchmarks maintained by an independent
organization, such as the Transaction Processing Performance Council (see TPC).
2. Measuring performance qualities (such as efficiency or spending) of enterprise
organizations or processes (such IS) against comparative benchmarks. Such
benchmarks can be external (for example, averages of industry peer
performance) or internal (for example, measurements of an organization's
performance in different time periods, or comparison to other organizations in the
same enterprise).
BER (bit error rate)
A measurement of digital transmission quality the lower the rate, the higher the
quality. A minimum BER is often specified in service-level agreements between
digital carriers and their customers.
Berkeley Internet Name Domain (see BIND)
Berkeley Software Distribution (see BSD)
best-in-class
The superior product within a category of hardware or software. It does not
necessarily mean best product overall, however. For example, the best-in-class
product in a low-priced category may be inferior to the best product on the market,
which could sell for much more. See best-of-breed.
best-of-breed
A term used to denote applications that offer superior functionality to serve specific
functions, as compared those that offer numerous functions bundled within an
application suite. Enterprises often purchase software from different vendors to
obtain the best-of-breed offering for each application area. For example, enterprises
may purchase a sales force automation package from one vendor and a customer
service package from another.
best practice
A group of tasks that optimizes the efficiency or effectiveness of the business
discipline or process to which it contributes. Best practices are generally adaptable
and replicable across similar organizations or enterprises and sometimes across
different functions or industries.
beta test
The stage at which a new product is tested under actual usage conditions prior to
commercial release.
BGP (Border Gateway Protocol)
The interdomain routing protocol implemented in Transmission Control
Protocol/Internet Protocol (TCP/IP) networks. See TCP/IP.
BGP-4 (Border Gateway Protocol-4)
A networking redundancy service based on Border Gateway Protocol (BGP). It
enables an enterprise to route Information Protocol (IP) traffic destined for the same
IP address via different network connections. In a BGP-4 environment, when a
transmission comes from an Internet service provider's network, it will look for the
primary router that connects to the enterprise's location. If that router becomes
unavailable, the transmission will automatically be redirected to the backup router
without interrupting the original transmission. See BGP.
BI (see business intelligence)
BIA (business impact analysis)
An analysis of the costs (financial and nonfinancial) that would be incurred if a
system or set of business processes failed to function properly. BIA is a required
early step in the business continuity planning (BCP) process. Without this step, it is
difficult to balance the cost of business continuity measures against potential losses.
See BCP.
BiCMOS (bipolar complementary metal-oxide semiconductor)
A hybrid semiconductor technology that combines complementary metal-oxide
semiconductor (CMOS) and bipolar circuitry. See bipolar and CMOS.
bid
1. A network terminal's attempt to gain control over a line in order to transmit data,
usually associated with the contention style of sharing a single line among
several terminals.
2. A vendor's proposal to win a contract.
big-endian
A method of storing or transmitting data where the most significant bit or byte is
presented first. (The name is an allusion to Jonathan Swift's "Gulliver's Travels,"
which contained characters so named because they believed that boiled eggs should
be eaten from the "big end" first.) See little-endian.
BiMOS (bipolar metal oxide semiconductor)
A type of bipolar integrated circuit technology. See bipolar.
binary code
Code that uses combinations of two base values (generally represented using the
digits "0" and "1") to represent information. For example, the number 17 is
represented as "1001" in binary notation.
binary-coded decimal
A numeric notation in which each of decimal digit is represented by a binary
numeral. For example, in BCD notation, the number 23 is represented as "0010
0011" (as compared to the representation "10111" in the pure binary numeration
system).
binary large object (see BLOB)
BIND (Berkeley Internet Name Domain)
Open-source software developed at the University of California at Berkeley, used in
network domain name servers. See domain name.
bindery
A database used by a network operating system to store internal data such as user
or node definitions.
BioAPI
A biometric application programming interface (API) specification from the BioAPI
Consortium, whose members include Hewlett-Packard, Intel, Iridian Technologies
and Saflink. The consortium was formed to develop a widely available and accepted
API for a variety of biometric technologies. The BioAPI specification incorporates
work from two prior standards: The U.S. Department of Defense's Human
Authentication API (HA-API) and I/O Software's Biometric API (BAPI). See HA-API
and BAPI.
Biometric API (see BAPI)
biometric authentication
A form of user authentication based on a physical (e.g., fingerprint, iris, face or
hand) or behavioral (e.g., signature or voice) characteristic. Because it is based on
something the person "is," biometric authentication can provide a higher level of
security than authentication based on something a person "knows" (e.g., a
password) or something a person "has" (e.g., a magnetic card or hardware token).
Biometric authentication systems require users to enroll to generate a template for
later comparison and matching.
biometrics
Technologies that analyze and measure biological and behavioral characteristics of
individuals, typically for identification or authentication purposes. See biometric
authentication.
BIOS (basic input/output system)
The part of an operating system that links specific hardware devices to the software.
It obtains the buffers required to send information from a program to the device
receiving the information.
bipolar
1. A signaling method used for digital transmission services, in which the signal
carrying the binary value alternates between positive and negative polarities.
Zero and one values are represented by the signal amplitude at either polarity,
while no-value "spaces" are at zero amplitude.
2. A type of integrated circuit that uses both positively and negatively charged
currents, characterized by high operational speed and cost. Also called alternate
mark inversion.
bipolar metal-oxide semiconductor (see BiMOS)
B-ISDN (Broadband ISDN)
An advanced, high-speed form of Integrated Services Digital Network (ISDN) capable
of carrying multimedia information at rates of hundreds of megabits per second. See
ISDN.
bit
The minimum unit of binary information stored in a computer system. A bit can have
only two states, on or off, which are commonly represented as ones and zeros. A
string of eight bits forms the information unit known as a "byte." (See byte.)
bit error rate (see BER)
bitmap
A representation of graphic image in the form of a series of bits, which correspond to
a pattern of pixels on a video screen.
bitmapped
A term describing an image rendered through the use of a bitmap. See bitmap.
BITS (Banking Industry Technology Secretariat)
The technology arm of the Bankers Roundtable, whose membership comprises the
top 125 bank holding companies in the United States. BITS' mission is to help banks
develop electronic-banking and e-commerce initiatives, and to address and resolve
critical industry issues (such as competitive disintermediation and reduction of
infrastructure costs).
bits per inch (see bpi)
bits per second (see bps)
BIW (Business Information Warehouse)
A component of SAP's R/3 system.
BizTalk
A Microsoft Extensible Markup Language (XML) schema. See XML.
BlackBerry
A two-way wireless device developed by Research in Motion. It allows users to check
e-mail and voice mail (translated into text) and to page other users via a wireless
network service. The device has a miniature keyboard used to type messages, which
are delivered using the Short Message Service (SMS) protocol. BlackBerry users
must subscribe to a wireless service that allows for data transmission. See SMS.
blanking interval
The area in a video signal that falls between frames. It is often used to accommodate
data such as synchronizing information.
BLEC (building local-exchange carrier)
A type of local-exchange carrier (LEC) that offers voice and data communications
service over wiring it has installed itself within a building. BLECs typically install fiber
wiring in vertical risers within the building, and connect it externally to their own
point of presence or to another LEC, usually over a broadband circuit of at least DS-1
size. In addition to basic connectivity, some BLECs offer application and Internet
services, typically to small and midsize businesses. BLECS are among the
competitive LECs (CLECs) that have arisen in the wake of telecommunications
deregulation. See CLEC.
BLERT (block error rate test)
A test conducted by transmitting a known blocked bit pattern, comparing the pattern
received with the pattern transmitted, and counting the number of blocks containing
errored bits.
BLOB (binary large object)
A generic term used to describe the handling and storage of long strings of data by
database management systems. A BLOB is a category of data, characterized by large
size (including media formats such as audio and video), which can place extreme
demands on storage systems and network bandwidth.
block
A group of bits or bytes treated as a unit.
block cipher
An encryption code that works on one fixed-size block of data at a time unlike a
stream cipher, which encrypts data as a stream of bits, one bit at a time. Examples
of block ciphers include Data Encryption Standard (DES), Rivest Cipher 2 (RS2) and
Rivest Cipher 5 (RS5). See stream cipher, DES, RS2 and RS5.
block error rate test (see BLERT)
blog
Slang for "weblog" a whimsical truncation of the term. This slang term may also
be used as a verb (as in "blogging"). See weblog.
Blowfish
A public-domain encryption algorithm developed by Bruce Schneier.
Bluefin
A specification introduced by a group of 16 storage companies in 2002 in an effort to
improve the interoperability of storage management systems. The Bluefin
specification, which the vendor group has submitted to the Storage Networking
Industry Association, uses the Common Information Model (CIM) and Web-Based
Enterprise Management (WBEM) to discover and manage resources in a multivendor
storage-area network (SAN) through common interfaces. See CIM, WBEM and SAN.
Bluetooth
A wireless networking technology with a range of about 10 meters and a raw data
transmission rate of one megabit per second. Bluetooth supports ad hoc networking
of up to 80 devices within a 10-meter radius (supporting voice and data).
BOB (see best-of-breed)
BOB (Business Object Broker)
SAP's message broker for R/3.
BOC (Bell operating company)
Any of the 22 original companies (or their successors) that were created from the
breakup of AT&T in 1983. They were reorganized into seven Bell regional holding
companies (RHCs). (There are now five.) The divestiture distributed the right to
provide local telephone service in a given geographic area. Before this, companies
had existed as subsidiaries of AT&T and were called the "Bell System." The breakup
was designed to create competition at both the local and long-distance service levels.
As a group, companies that offer local telephone service are legally referred to as
"local-exchange carriers."
BOCs are not allowed to manufacture equipment and were initially not allowed to
provide long-distance service. The Telecommunications Act of 1996 gave them
permission to engage in long-distance business under certain circumstances.
BOL (Books Online)
A bookstore on the Internet created as a joint venture of German publisher
Bertelsmann and French publisher Havas. It is designed to be pan-European with a
Web site available in various local languages.
BOM (bill of materials)
A structured list of the raw materials, parts and assemblies that constitute a product
to be manufactured, often used in manufacturing and supply chain management
systems.
bookmark
A shortcut to an Internet address stored in a Web browser.
Books Online (see BOL)
Boolean
A term that originated in the in the realm of mathematics, and that is now commonly
known for its application to search engine logic. A Boolean search allows for the
inclusion or exclusion of documents containing certain keywords, using Boolean
operators such as "and," "not" and "or." For example:
• A search structured "Bush and China" would return all documents that refer to
both "Bush" and "China," but not those that contain only one term or the other.
• "Bush not China" would return all documents referring to "Bush," except for those
that also contain references to "China."
• "Bush or China" would return all documents that reference either "Bush" or
"China," as well as those that reference both.
Some Boolean search engines allow keywords and operators to be nested using
parentheses. For example, a search structured as "Bush and (Japan or China)" would
return all documents that reference both Bush and Japan, as well as those that
reference both Bush and China.
boot
To start a computer system (also referred to as "booting up.") Restarting such a
system (for example, due to a system crash) is known as "rebooting."
BOOTP (Bootstrap Protocol)
A protocol defined in Internet Engineering Task Force Request for Comment 951
that enables a diskless client machine connected to an Internet Protocol (IP)
network to discover its own IP address and the address of a server running the
protocol (known as a BOOTP server). A file can then be remotely loaded and
executed on the client, without the need for a boot disk.
Border Gateway Protocol (see BGP)
Border Gateway Protocol-4 (see BGP-4)
BOT (beginning of tape)
In tape storage systems, the point at the start of the tape in a cartridge. Tape
cartridge load times are often measured in terms of the time to BOT.
BOT (build-operate-transfer)
A process used in several Asia/Pacific countries that allows foreign companies to
build a telecommunications network in the country, operate it for a period and then
transfer ownership to the government.
bottleneck
The point or operation that has the least capacity in a system or network, where no
alternative routings exist.
bounce
The return of an undeliverable e-mail.
BPA (business process automation)
The automation of complex business processes and functions beyond conventional
data manipulation and record-keeping activities, usually through the use of advanced
technologies. It focuses on "run the business" as opposed to "count the business"
types of automation efforts and often deals with event-driven, mission-critical, core
processes. BPA usually supports an enterprise's knowledge workers in satisfying the
needs of its many constituencies.
BPEL4WS (Business Process Execution Language for Web Services)
A set of specifications released in 2002 by IBM and Microsoft, combining previously
separate efforts of the two companies. BPEL4WS is designed to enable Web services
to support workflow and business process execution.
bpi (bits per inch)
A measurement used to calculate the number of bits stored in a linear inch of a track
on a disk, tape or other recording surface.
BPM (business process management)
A general term describing a set of services and tools that provide for explicit process
management, including process analysis, definition, execution, monitoring and
administration. Ideally, BPM should include support for both human and applicationlevel
interactions. The workflow market has been a significant source of BPM,
although forms of BPM are now emerging from many other sources, such as
collaborative applications, integration brokers, Web integration servers, development
tools, rules engines and e-commerce offerings.
BPM (business process modeling)
A process that links business strategy to IT system development to ensure business
value. It combines workflow, functional, organizational and data/resource views with
underlying metrics such as costs, cycle times and responsibilities to provide a
foundation for analyzing value chains, activity-based costs, bottlenecks, critical paths
and inefficiencies.
BPO (business process outsourcing)
The delegation of one or more IT-intensive business processes to an external
provider that, in turn, owns, administers and manages the selected processes, based
on defined and measurable performance metrics.
BPR (business process re-engineering)
The fundamental analysis and radical redesign of business processes and
management systems to accomplish change or performance improvement. BPR uses
objective, quantitative methods and tools to analyze, redesign and transform
business processes, including supporting organization structures, information
systems, job responsibilities and performance standards.
BPR methodology
An integrated set of management policies, project management procedures, and
modeling, analysis, design and testing techniques for analyzing established business
processes and systems; designing new processes and systems; testing, simulating
and prototyping new designs prior to implementation; and managing the
implementation process.
bps (bits per second)
The basic unit of measurement for serial data transmission capacity. Related
abbreviations used for higher speeds include Kbps (kilobits per second), Mbps
(megabits per second) and Gbps (gigabits per second). See bit, kilobit and gigabit.
BRA (Basic Rate Access)
The name used in Canada and Europe for Basic Rate Interface (see BRI).
brand service company
A service model similar to that of "insourcing." A brand service company is one built
to provide services to a large organization or a group of business-oriented
companies. Services provided (which may include non-IT services and business
processes) are carefully compared against those offered in the external service
providers (ESP) market, and the brand service company may selectively outsource
some of its services to ESPs. See ESP and insourcing.
BRE (business rule engine)
A software tool used to record, track, manage and revise enterprise business
processes. Rules are set to stipulate and outline processes, and the BRE
"externalizes" these rules for quick and easy modification. BREs (also known simply
as "rule engines") can be used independently or in conjunction with other technology
such as business process management (BPM) and business activity monitoring
(BAM) tools to help achieve business goals and enable organizational change. The
use of BREs can support business process re-engineering (BPR) and help an
enterprise meet operational objectives, such as reducing maintenance costs,
facilitating straight-through processing (STP) and enabling exception-based
processing. See BAM, BPM, BPR and STP.
BRI (Basic Rate Interface)
An Integrated Services Digital Network (ISDN) channel configuration. BRI known
as Basic Rate Access (BRA) in Canada and Europe consists of two 64 kilobit per
second (Kbps) data or voice channels, which are designated as B (bearer) channels,
and one 16-Kbps signaling or packet data channel, designated as the D (delta)
channel. BRI is, therefore, often referred to as 2B+D.
brick and mortar
A term used differentiate a traditional company from an e-business. Specifically, a
brick-and-mortar company has a physical (rather than virtual) presence and uses
non-Web channels as the sales outlet for its products or services. See e-business.
bridge
A relatively simple network device that passes data without examining it. Bridges
interconnect networks, or network segments, running the same protocols. Operating
at the media access control (MAC) layer in the Open Systems Interconnection (OSI)
model, bridges are protocol-independent; the decision as to whether to forward a
signal depends only on the address. See OSI.
bridge/router
A hybrid network device. Strictly defined, a bridge/router provides bridging at Layer
2 and routing at Layer 3 of the Open Systems Interconnection (OSI) stack, but this
precise meaning has been largely superseded by a looser categorization that includes
any device that combines the functions of bridges and routers. See bridge, router
and OSI.
British Standard 7799 (see BS 7799)
British Standards Institute (see BSI)
broadband
Transmission over coaxial or fiber-optic cables that have a wider bandwidth than
conventional telephone lines, giving them the ability to carry video, voice and data
simultaneously. Cable modems and digital subscriber line (DSL) technologies are
examples of broadband connectivity. See DSL.
Broadband ISDN (see B-ISDN)
broadcast
1. Delivery of a transmission to two or more stations at the same time, such as over
a bus-type local network or by satellite.
2. A protocol mechanism whereby group and universal addressing is supported.
broadcast storm
Excessive one-to-many or many-to-many transmissions, especially troublesome on
Ethernet networks.
broker
Middleware that mediates communication between applications (including legacy and
packaged applications) and enables them to share information. See integration
broker, message broker and middleware.
browser
A software program (also known as a "Web browser") used to locate and display
information on the Internet or an intranet. Examples include Microsoft's Internet
Explorer and Netscape Communications' Navigator. Most browsers can display
graphics, photographs and text; multimedia information (such as sound and video)
may require additional software, known as "plug-ins."
browsing
The near-random search for content on the Internet.
BS 7799 (British Standard 7799)
A comprehensive standard from the British Standards Institute (BSI). Formally titled
the "Code of Practice for Information Security Management," BS 7799 was
significantly revised in 2000 and evolved into International Organization for
Standardization (ISO) standard 17799 see ISO 17799.
BSA (Business Software Alliance)
A software industry coalition whose stated missions include industry education and
copyright enforcement.
BSD (Berkeley Software Distribution)
A version of Unix developed at the University of California at Berkeley.
BSI (British Standards Institute)
A U.K. standards body, headquartered in London.
BSP (business service provider)
A domain of enterprise application outsourcing best suited for confined processes
with a few, well-defined interfaces to other business processes of the enterprise. BSP
is the extension of the application service provider (ASP) model into business process
management. A BSP manages and operates standardized business processes on
behalf of its customers, delivering its service across a network to multiple customers
using a "pay as you go" payment model. See ASP.
BU (business unit)
A general term for a high-level organizational component of an enterprise, such as a
corporate division or subsidiary.
buffer
A technology element or component used to compensate for a difference in rate of
data flow, or time of occurrence of events, when transmitting data from one device
to another.
bug
An unexpected problem with software or hardware. Typical problems are often the
result of external interference with the program's performance that was not
anticipated by the developer. Minor bugs can cause small problems like frozen
screens or unexplained error messages that do not significantly effect usage. Major
bugs, however, may not only affect software and hardware, but could also have
unintended effects on connected devices or integrated software and may damage
data files.
building local-exchange carrier (see BLEC)
build-operate-transfer (see BOT)
bulletin board system (see BBS)
bundling
Packaging multiple features or products together for a single price.
burst
In data communications, a sequence of signals counted as one unit in accordance
with a specific criterion or measure.
bursty
A communications term describing data transmission that occurs in uneven spurts.
bus
1. Physical transmission path or channel. Typically an electrical connection with one
or more conductors, wherein all attached devices receive all transmissions at the
same time.
2. A type of local network topology, such as that used in Ethernet, where all
network nodes listen to all transmissions, selecting certain ones based on address
identification. It involves some type of contention-control mechanism for
accessing the bus transmission medium.
business activity monitoring (see BAM)
Business Application Programming Interface (see BAPI)
business continuity manager
The position responsible for business continuity planning (BCP) in an enterprise. See
BCP.
business continuity planning (see BCP)
business continuance volume (see BCV)
business impact analysis (see BIA)
business intelligence
An interactive process for exploring and analyzing structured, domain-specific
information (often stored in data warehouses) to discern business trends or patterns,
thereby deriving insights and drawing conclusions. The business intelligence process
includes communicating findings and effecting change. Domains include customers,
suppliers, products, services and competitors.
Business Object Broker (see BOB)
business portal (see enterprise portal)
business process
An event-driven, end-to-end processing path that starts with a customer request and
ends with a result for the customer. Business processes often cross departmental
and even organizational boundaries.
business process automation (see BPA)
Business Process Execution Language for Web Services (see BPEL4WS)
business process management (see BPM)
business process modeling (see BPM)
business process outsourcing (see BPO)
business process re-engineering (see BPR)
business rule engine (see BRE)
business service provider (see BSP)
Business Software Alliance (see BSA)
business support system (see BSS)
business-to-business (see B2B)
Business-to-Business Procurement (see BBP)
business-to-consumer (see B2C)
business-to-employee (see B2E)
business-to-enterprise see "B2E (business-to-employee)"
business unit (see BU)
Business Workflow (see BW)
bus topology
An equal-access network design in which all devices are connected in a single line
with two distinct ends. See bus.
buy side
A general term encompassing services or processes associated with the purchasing
side of business-to-business transactions, such as requisitioning, product catalogs,
approvals, user identification, purchase order creation, payment processing and
integration with other systems.
BW (Business Workflow)
The workflow component introduced by SAP with release 3.0 of R/3. SAP Business
Workflow provides the infrastructure and tools to allow business processes to be
managed, automated and analyzed.
byte
A group of eight bits handled as a logical unit. In text files, a byte is equivalent to a
single character such as a letter, number or punctuation mark. See bit.
byte code
The intermediate code compiled and executed by a virtual machine (VM). Byte code
can be used unchanged on any platform on which the VM operates. See VM and
Java.
Biometric API (see BAPI)
biometric authentication
A form of user authentication based on a physical (e.g., fingerprint, iris, face or
hand) or behavioral (e.g., signature or voice) characteristic. Because it is based on
something the person "is," biometric authentication can provide a higher level of
security than authentication based on something a person "knows" (e.g., a
password) or something a person "has" (e.g., a magnetic card or hardware token).
Biometric authentication systems require users to enroll to generate a template for
later comparison and matching.
biometrics
Technologies that analyze and measure biological and behavioral characteristics of
individuals, typically for identification or authentication purposes. See biometric
authentication.
BIOS (basic input/output system)
The part of an operating system that links specific hardware devices to the software.
It obtains the buffers required to send information from a program to the device
receiving the information.
bipolar
1. A signaling method used for digital transmission services, in which the signal
carrying the binary value alternates between positive and negative polarities.
Zero and one values are represented by the signal amplitude at either polarity,
while no-value "spaces" are at zero amplitude.
2. A type of integrated circuit that uses both positively and negatively charged
currents, characterized by high operational speed and cost. Also called alternate
mark inversion.
bipolar metal-oxide semiconductor (see BiMOS)
B-ISDN (Broadband ISDN)
An advanced, high-speed form of Integrated Services Digital Network (ISDN) capable
of carrying multimedia information at rates of hundreds of megabits per second. See
ISDN.
bit
The minimum unit of binary information stored in a computer system. A bit can have
only two states, on or off, which are commonly represented as ones and zeros. A
string of eight bits forms the information unit known as a "byte." (See byte.)
bit error rate (see BER)
bitmap
A representation of graphic image in the form of a series of bits, which correspond to
a pattern of pixels on a video screen.
bitmapped
A term describing an image rendered through the use of a bitmap. See bitmap.
BITS (Banking Industry Technology Secretariat)
The technology arm of the Bankers Roundtable, whose membership comprises the
top 125 bank holding companies in the United States. BITS' mission is to help banks
develop electronic-banking and e-commerce initiatives, and to address and resolve
critical industry issues (such as competitive disintermediation and reduction of
infrastructure costs).
bits per inch (see bpi)
bits per second (see bps)
BIW (Business Information Warehouse)
A component of SAP's R/3 system.
BizTalk
A Microsoft Extensible Markup Language (XML) schema. See XML.
BlackBerry
A two-way wireless device developed by Research in Motion. It allows users to check
e-mail and voice mail (translated into text) and to page other users via a wireless
network service. The device has a miniature keyboard used to type messages, which
are delivered using the Short Message Service (SMS) protocol. BlackBerry users
must subscribe to a wireless service that allows for data transmission. See SMS.
blanking interval
The area in a video signal that falls between frames. It is often used to accommodate
data such as synchronizing information.
BLEC (building local-exchange carrier)
A type of local-exchange carrier (LEC) that offers voice and data communications
service over wiring it has installed itself within a building. BLECs typically install fiber
wiring in vertical risers within the building, and connect it externally to their own
point of presence or to another LEC, usually over a broadband circuit of at least DS-1
size. In addition to basic connectivity, some BLECs offer application and Internet
services, typically to small and midsize businesses. BLECS are among the
competitive LECs (CLECs) that have arisen in the wake of telecommunications
deregulation. See CLEC.
BLERT (block error rate test)
A test conducted by transmitting a known blocked bit pattern, comparing the pattern
received with the pattern transmitted, and counting the number of blocks containing
errored bits.
BLOB (binary large object)
A generic term used to describe the handling and storage of long strings of data by
database management systems. A BLOB is a category of data, characterized by large
size (including media formats such as audio and video), which can place extreme
demands on storage systems and network bandwidth.
block
A group of bits or bytes treated as a unit.
block cipher
An encryption code that works on one fixed-size block of data at a time unlike a
stream cipher, which encrypts data as a stream of bits, one bit at a time. Examples
of block ciphers include Data Encryption Standard (DES), Rivest Cipher 2 (RS2) and
Rivest Cipher 5 (RS5). See stream cipher, DES, RS2 and RS5.
block error rate test (see BLERT)
blog
Slang for "weblog" a whimsical truncation of the term. This slang term may also
be used as a verb (as in "blogging"). See weblog.
Blowfish
A public-domain encryption algorithm developed by Bruce Schneier.
Bluefin
A specification introduced by a group of 16 storage companies in 2002 in an effort to
improve the interoperability of storage management systems. The Bluefin
specification, which the vendor group has submitted to the Storage Networking
Industry Association, uses the Common Information Model (CIM) and Web-Based
Enterprise Management (WBEM) to discover and manage resources in a multivendor
storage-area network (SAN) through common interfaces. See CIM, WBEM and SAN.
Bluetooth
A wireless networking technology with a range of about 10 meters and a raw data
transmission rate of one megabit per second. Bluetooth supports ad hoc networking
of up to 80 devices within a 10-meter radius (supporting voice and data).
BOB (see best-of-breed)
BOB (Business Object Broker)
SAP's message broker for R/3.
BOC (Bell operating company)
Any of the 22 original companies (or their successors) that were created from the
breakup of AT&T in 1983. They were reorganized into seven Bell regional holding
companies (RHCs). (There are now five.) The divestiture distributed the right to
provide local telephone service in a given geographic area. Before this, companies
had existed as subsidiaries of AT&T and were called the "Bell System." The breakup
was designed to create competition at both the local and long-distance service levels.
As a group, companies that offer local telephone service are legally referred to as
"local-exchange carriers."
BOCs are not allowed to manufacture equipment and were initially not allowed to
provide long-distance service. The Telecommunications Act of 1996 gave them
permission to engage in long-distance business under certain circumstances.
BOL (Books Online)
A bookstore on the Internet created as a joint venture of German publisher
Bertelsmann and French publisher Havas. It is designed to be pan-European with a
Web site available in various local languages.
BOM (bill of materials)
A structured list of the raw materials, parts and assemblies that constitute a product
to be manufactured, often used in manufacturing and supply chain management
systems.
bookmark
A shortcut to an Internet address stored in a Web browser.
Books Online (see BOL)
Boolean
A term that originated in the in the realm of mathematics, and that is now commonly
known for its application to search engine logic. A Boolean search allows for the
inclusion or exclusion of documents containing certain keywords, using Boolean
operators such as "and," "not" and "or." For example:
• A search structured "Bush and China" would return all documents that refer to
both "Bush" and "China," but not those that contain only one term or the other.
• "Bush not China" would return all documents referring to "Bush," except for those
that also contain references to "China."
• "Bush or China" would return all documents that reference either "Bush" or
"China," as well as those that reference both.
Some Boolean search engines allow keywords and operators to be nested using
parentheses. For example, a search structured as "Bush and (Japan or China)" would
return all documents that reference both Bush and Japan, as well as those that
reference both Bush and China.
boot
To start a computer system (also referred to as "booting up.") Restarting such a
system (for example, due to a system crash) is known as "rebooting."
BOOTP (Bootstrap Protocol)
A protocol defined in Internet Engineering Task Force Request for Comment 951
that enables a diskless client machine connected to an Internet Protocol (IP)
network to discover its own IP address and the address of a server running the
protocol (known as a BOOTP server). A file can then be remotely loaded and
executed on the client, without the need for a boot disk.
Border Gateway Protocol (see BGP)
Border Gateway Protocol-4 (see BGP-4)
BOT (beginning of tape)
In tape storage systems, the point at the start of the tape in a cartridge. Tape
cartridge load times are often measured in terms of the time to BOT.
BOT (build-operate-transfer)
A process used in several Asia/Pacific countries that allows foreign companies to
build a telecommunications network in the country, operate it for a period and then
transfer ownership to the government.
bottleneck
The point or operation that has the least capacity in a system or network, where no
alternative routings exist.
bounce
The return of an undeliverable e-mail.
BPA (business process automation)
The automation of complex business processes and functions beyond conventional
data manipulation and record-keeping activities, usually through the use of advanced
technologies. It focuses on "run the business" as opposed to "count the business"
types of automation efforts and often deals with event-driven, mission-critical, core
processes. BPA usually supports an enterprise's knowledge workers in satisfying the
needs of its many constituencies.
BPEL4WS (Business Process Execution Language for Web Services)
A set of specifications released in 2002 by IBM and Microsoft, combining previously
separate efforts of the two companies. BPEL4WS is designed to enable Web services
to support workflow and business process execution.
bpi (bits per inch)
A measurement used to calculate the number of bits stored in a linear inch of a track
on a disk, tape or other recording surface.
BPM (business process management)
A general term describing a set of services and tools that provide for explicit process
management, including process analysis, definition, execution, monitoring and
administration. Ideally, BPM should include support for both human and applicationlevel
interactions. The workflow market has been a significant source of BPM,
although forms of BPM are now emerging from many other sources, such as
collaborative applications, integration brokers, Web integration servers, development
tools, rules engines and e-commerce offerings.
BPM (business process modeling)
A process that links business strategy to IT system development to ensure business
value. It combines workflow, functional, organizational and data/resource views with
underlying metrics such as costs, cycle times and responsibilities to provide a
foundation for analyzing value chains, activity-based costs, bottlenecks, critical paths
and inefficiencies.
BPO (business process outsourcing)
The delegation of one or more IT-intensive business processes to an external
provider that, in turn, owns, administers and manages the selected processes, based
on defined and measurable performance metrics.
BPR (business process re-engineering)
The fundamental analysis and radical redesign of business processes and
management systems to accomplish change or performance improvement. BPR uses
objective, quantitative methods and tools to analyze, redesign and transform
business processes, including supporting organization structures, information
systems, job responsibilities and performance standards.
BPR methodology
An integrated set of management policies, project management procedures, and
modeling, analysis, design and testing techniques for analyzing established business
processes and systems; designing new processes and systems; testing, simulating
and prototyping new designs prior to implementation; and managing the
implementation process.
bps (bits per second)
The basic unit of measurement for serial data transmission capacity. Related
abbreviations used for higher speeds include Kbps (kilobits per second), Mbps
(megabits per second) and Gbps (gigabits per second). See bit, kilobit and gigabit.
BRA (Basic Rate Access)
The name used in Canada and Europe for Basic Rate Interface (see BRI).
brand service company
A service model similar to that of "insourcing." A brand service company is one built
to provide services to a large organization or a group of business-oriented
companies. Services provided (which may include non-IT services and business
processes) are carefully compared against those offered in the external service
providers (ESP) market, and the brand service company may selectively outsource
some of its services to ESPs. See ESP and insourcing.
BRE (business rule engine)
A software tool used to record, track, manage and revise enterprise business
processes. Rules are set to stipulate and outline processes, and the BRE
"externalizes" these rules for quick and easy modification. BREs (also known simply
as "rule engines") can be used independently or in conjunction with other technology
such as business process management (BPM) and business activity monitoring
(BAM) tools to help achieve business goals and enable organizational change. The
use of BREs can support business process re-engineering (BPR) and help an
enterprise meet operational objectives, such as reducing maintenance costs,
facilitating straight-through processing (STP) and enabling exception-based
processing. See BAM, BPM, BPR and STP.
BRI (Basic Rate Interface)
An Integrated Services Digital Network (ISDN) channel configuration. BRI known
as Basic Rate Access (BRA) in Canada and Europe consists of two 64 kilobit per
second (Kbps) data or voice channels, which are designated as B (bearer) channels,
and one 16-Kbps signaling or packet data channel, designated as the D (delta)
channel. BRI is, therefore, often referred to as 2B+D.
brick and mortar
A term used differentiate a traditional company from an e-business. Specifically, a
brick-and-mortar company has a physical (rather than virtual) presence and uses
non-Web channels as the sales outlet for its products or services. See e-business.
bridge
A relatively simple network device that passes data without examining it. Bridges
interconnect networks, or network segments, running the same protocols. Operating
at the media access control (MAC) layer in the Open Systems Interconnection (OSI)
model, bridges are protocol-independent; the decision as to whether to forward a
signal depends only on the address. See OSI.
bridge/router
A hybrid network device. Strictly defined, a bridge/router provides bridging at Layer
2 and routing at Layer 3 of the Open Systems Interconnection (OSI) stack, but this
precise meaning has been largely superseded by a looser categorization that includes
any device that combines the functions of bridges and routers. See bridge, router
and OSI.
British Standard 7799 (see BS 7799)
British Standards Institute (see BSI)
broadband
Transmission over coaxial or fiber-optic cables that have a wider bandwidth than
conventional telephone lines, giving them the ability to carry video, voice and data
simultaneously. Cable modems and digital subscriber line (DSL) technologies are
examples of broadband connectivity. See DSL.
Broadband ISDN (see B-ISDN)
broadcast
1. Delivery of a transmission to two or more stations at the same time, such as over
a bus-type local network or by satellite.
2. A protocol mechanism whereby group and universal addressing is supported.
broadcast storm
Excessive one-to-many or many-to-many transmissions, especially troublesome on
Ethernet networks.
broker
Middleware that mediates communication between applications (including legacy and
packaged applications) and enables them to share information. See integration
broker, message broker and middleware.
browser
A software program (also known as a "Web browser") used to locate and display
information on the Internet or an intranet. Examples include Microsoft's Internet
Explorer and Netscape Communications' Navigator. Most browsers can display
graphics, photographs and text; multimedia information (such as sound and video)
may require additional software, known as "plug-ins."
browsing
The near-random search for content on the Internet.
BS 7799 (British Standard 7799)
A comprehensive standard from the British Standards Institute (BSI). Formally titled
the "Code of Practice for Information Security Management," BS 7799 was
significantly revised in 2000 and evolved into International Organization for
Standardization (ISO) standard 17799 see ISO 17799.
BSA (Business Software Alliance)
A software industry coalition whose stated missions include industry education and
copyright enforcement.
BSD (Berkeley Software Distribution)
A version of Unix developed at the University of California at Berkeley.
BSI (British Standards Institute)
A U.K. standards body, headquartered in London.
BSP (business service provider)
A domain of enterprise application outsourcing best suited for confined processes
with a few, well-defined interfaces to other business processes of the enterprise. BSP
is the extension of the application service provider (ASP) model into business process
management. A BSP manages and operates standardized business processes on
behalf of its customers, delivering its service across a network to multiple customers
using a "pay as you go" payment model. See ASP.
BU (business unit)
A general term for a high-level organizational component of an enterprise, such as a
corporate division or subsidiary.
buffer
A technology element or component used to compensate for a difference in rate of
data flow, or time of occurrence of events, when transmitting data from one device
to another.
bug
An unexpected problem with software or hardware. Typical problems are often the
result of external interference with the program's performance that was not
anticipated by the developer. Minor bugs can cause small problems like frozen
screens or unexplained error messages that do not significantly effect usage. Major
bugs, however, may not only affect software and hardware, but could also have
unintended effects on connected devices or integrated software and may damage
data files.
building local-exchange carrier (see BLEC)
build-operate-transfer (see BOT)
bulletin board system (see BBS)
bundling
Packaging multiple features or products together for a single price.
burst
In data communications, a sequence of signals counted as one unit in accordance
with a specific criterion or measure.
bursty
A communications term describing data transmission that occurs in uneven spurts.
bus
1. Physical transmission path or channel. Typically an electrical connection with one
or more conductors, wherein all attached devices receive all transmissions at the
same time.
2. A type of local network topology, such as that used in Ethernet, where all
network nodes listen to all transmissions, selecting certain ones based on address
identification. It involves some type of contention-control mechanism for
accessing the bus transmission medium.
business activity monitoring (see BAM)
Business Application Programming Interface (see BAPI)
business continuity manager
The position responsible for business continuity planning (BCP) in an enterprise. See
BCP.
business continuity planning (see BCP)
business continuance volume (see BCV)
business impact analysis (see BIA)
business intelligence
An interactive process for exploring and analyzing structured, domain-specific
information (often stored in data warehouses) to discern business trends or patterns,
thereby deriving insights and drawing conclusions. The business intelligence process
includes communicating findings and effecting change. Domains include customers,
suppliers, products, services and competitors.
Business Object Broker (see BOB)
business portal (see enterprise portal)
business process
An event-driven, end-to-end processing path that starts with a customer request and
ends with a result for the customer. Business processes often cross departmental
and even organizational boundaries.
business process automation (see BPA)
Business Process Execution Language for Web Services (see BPEL4WS)
business process management (see BPM)
business process modeling (see BPM)
business process outsourcing (see BPO)
business process re-engineering (see BPR)
business rule engine (see BRE)
business service provider (see BSP)
Business Software Alliance (see BSA)
business support system (see BSS)
business-to-business (see B2B)
Business-to-Business Procurement (see BBP)
business-to-consumer (see B2C)
business-to-employee (see B2E)
business-to-enterprise see "B2E (business-to-employee)"
business unit (see BU)
Business Workflow (see BW)
bus topology
An equal-access network design in which all devices are connected in a single line
with two distinct ends. See bus.
buy side
A general term encompassing services or processes associated with the purchasing
side of business-to-business transactions, such as requisitioning, product catalogs,
approvals, user identification, purchase order creation, payment processing and
integration with other systems.
BW (Business Workflow)
The workflow component introduced by SAP with release 3.0 of R/3. SAP Business
Workflow provides the infrastructure and tools to allow business processes to be
managed, automated and analyzed.
byte
A group of eight bits handled as a logical unit. In text files, a byte is equivalent to a
single character such as a letter, number or punctuation mark. See bit.
byte code
The intermediate code compiled and executed by a virtual machine (VM). Byte code
can be used unchanged on any platform on which the VM operates. See VM and
Java.
|