subclassEach asset class - stock, bonds, and cash equivalents, for example - is made up of a number of different groups of investments called subclasses.
SubcontractorA contractor who enters into a contract with a prime contractor.
subformA form-building shortcut that lets designers store regularly used fields, sections, actions, and other form elements together.
subheadingA secondary heading used as the division of a subject to delineate a particular group under the major heading See also secondary subject.
SubjectThe Subject of an email message should be a short summary of its contents. Email clients usually display it in a mailbox display together with the sender.
subject authorityAn authority recognized in a Security Domain as a trusted source of security information concerning security subjects (human beings and Applications)…
subject classification systemA plan for the classification and coding of documents by subject See also classification system, file classification system, and taxonomy.
subject entryA heading under a person, place, or thing that represents the content of the item being indexed
subject filingA file system in which each document relates to a specific subject matter and is arranged in alphabetic order by subject
Subject Security LevelA subject's security level is equal to the security level of the objects to which it has both read and write access.
Subject-Matter Expert (SME)A subject-matter expert (SME) is a person knowledgeable about a given topic or subject area.
sublayerIn a layered open communications system, a specified subset of the services, functions, and protocols included in a given layer. 2.
Submissionany single delivery of evidence in a specific investigation.
Submission queueA persistent queue that is used by the categorizer in Exchange Server 2007 to gather all messages that have to be resolved, routed, and processed by…
Submission ServiceAny agent which submits your site to many search engines and directories. Useful to get listed with many of the minor search engines, but don't rely on…
Submittingsubmitting a web page address to a search engine in the hopes that it will index it.
subnetA segment of the IP address range of a VPC that EC2 instances can be attached to.
Subnet AddressIn computer networks, a subnetwork or subnet is a range of logical addresses within the address space that is assigned to an organization.
subnet maskA number that is used to identify a subnetwork so that IP addresses can be shared on a local area network.
subnetwork1. A collection of equipment and physical transmission media that forms an autonomous whole and that can be used to interconnect systems for purposes of…
Subordinate Certification Authority (CA)In a hierarchical PKI, a Certification Authority whose certificate signature key is certified by another CA, and whose activities are constrained by that…
subordinate inner classAn inner class that performs well-defined subordinate tasks on behalf of its enclosing class.
subroutineA named or otherwise accessible piece of program that can be invoked from elsewhere in the program in order to accomplish some sub-goal of the program.
subscribeIn computer conferencing, to add one's address to a distribution list, or to join a forum. [2382-pt.35]
SubscriberA party who receives a credential or token from a CSP and becomes a claimant in an authentication protocol.
subscriber access numberA number that is configured in a Private Branch eXchange (PBX) that allows a subscriber to access their Microsoft Exchange mailbox over the telephone.
subscriber keyA key encrypting key or data key transported in a multiple center CSM for eventual distribution to a pair of subscribers. [After X9.28]
subscriber lineSynonym loop. 2. A communication channel between a telephone station, PBX or TWX station and the central office which serves it. Synonym exchange line.
Subscriber Line Charge (SLC)A monthly fee paid by telephone subscribers that is used to compensate the local telephone company for part of the cost of installation and maintenance of…
subscriptA "value" that indicates the position of a particular "array" "element" in an array.
subscriptionA request for notification when changes are made to a document, the contents of a folder, a category, or a search results list.
subscription aggregator sourceAn aggregator source (included in WS MDS) that collects data from a WSRF service via WSRF subscription/notification.
subscription applicationA Notes application (HEADLINE.NSF) stored in the Notes data directory that contains subscription information
Subscription buttonAn HTML-coded button that enables an easy way to charge customers a recurring fee.
subseriesA division of records within a larger system that is readily separable in terms of physical form, type, subject, or filing arrangement
SubsiteA named subdirectory of the top-level Web site that is a complete Web site. Each subsite can have independent administration, authoring, and browsing…
substitute character (SUB)A control character that is used in the place of a character that is recognized to be invalid or in error or that cannot be represented on a given device.
substitutionReplacement of one nucleotide in a DNA sequence by another nucleotide or replacement of one amino acid in a protein by another amino acid.
substitution methodIn optical fiber technology, a method of measuring the transmission loss by (a) using a stable optical source, at the wavelength of interest, to drive a…
Substrate1. A compound that is altered by an enzyme. 2. Food source for growing cells or micro-organisms. 3. Material on which a sedentary organism lives and grows.
substringA portion of a "string", starting at a certain "character" position ("offset") and proceeding for a certain number of characters.
Substring searchSearching for parts of a string as with a wildcard search ("*term*"). A word or token (for Asian language documents) is split up in smaller entities, so…
SubsystemA functional grouping of components that combine to perform a major function within an element, such as attitude control and propulsion.
subtributary officeA class of tributary office which does not have direct access to its toll center, but which is connected to its toll center office by means of circuits…
subtypeIf type X extends or implements type Y, then X is a subtype of Y. See also supertype.
subvoice-grade channelA channel with a bandwidth narrower than that of a voice-grade channel. Note: A subvoice-grade channel is usually a subchannel of a voice-grade line.
successful block deliveryThe transfer of a nonduplicate user information block between the source user and intended destination user.
successful block transferThe transfer of a correct, nonduplicate, user information block between the source user and intended destination user.
successful disengagementThe termination of user information transfer between a source user and a destination user in response to a disengagement request.
Succession of CommandThe planned or actual sequence in which subordinate commanders, in turn, become de facto commanders of a senior organization.
successor agencyan agency that is authorized by law to accept and maintain the legal title, custody, and dominion of records that were created by another agency.
Sudden Ionospheric Disturbance (SID)In solar-terrestrial terms, HF propagation anomalies due to ionospheric changes resulting from solar flares, proton events and geomagnetic storms.
suitability of functionAn aspect of the assessment of the effectiveness of a Target of Evaluation, namely the suitability of its security enforcing functions and mechanisms to…
Sullivan, DannyFounder and lead editor of SearchEngineWatch.com, who later started SearchEngineLand.com.
summarizationThe process of including sentences in search results to briefly describe the content of a document.
Summary MetadataThis is a shorter set of metadata to provide the basic information about a dataset.
summation check1. A check based on the formation of the sum of the digits of a numeral. Note: The sum of the individual digits is usually compared with a previously…
Sunk CostsThe costs of resources already committed or spent. In comparing two alternatives, such costs are "non-additive," and they are not germane to decisions…
Super RadianceThe process used by a super radiant laser to generate or amplify a laser beam in a single pass through a lasant material, or, in the case of a free…
super typeA type with a child sub type. The sub-type/super-type relationship is more general than the sub-class/super-class relationship.
superclassA class from which a particular class is derived, perhaps with one or more classes in between. See also subclass, subtype.
superencryption[The] process of encrypting encrypted information. Note: [This process] occurs when a message, encrypted off-line, is transmitted over a secured, on-line…
superframe (SF)In T-carrier, a synchronization frame that delineates 12 DS1 frames. [J. Beaty, FAA] 2.
supergroup distribution frame (SGDF)In frequency-division multiplexing (FDM), the distribution frame that provides terminating and interconnecting facilities for group modulator output…
superhighwaySee National Information Infrastructure.
Superior Certification Authority (CA)In a hierarchical PKI, a Certification Authority who has certified the certificate signature key of another CA, and who constrains the activities of that…
superluminescent LEDA light-emitting diode in which there is stimulated emission with amplification but insufficient feedback for oscillations to build up to achieve lasing…
SuperradianceThe process used by a superradiant laser to generate or amplify a laser beam in a single pass through a lasant material, or, in the case of a free…
Superradiant Laser (SRL)A laser in which the beam passes through the lasant only once; mirrors are not required for the operation of such a laser, as they are with more…
supersectorAn oversized sector written on a diskette, as part of a method of copy protection. [2382-pt.8]
supersession[In security,] scheduled or unscheduled replacement of a COMSEC aid with a different edition. [INFOSEC-99]
supertypeThe supertypes of a type are all the interfaces and classes that are extended or implemented by that type. See also subtype, superclass.
superuserThe person whom the "operating system" will let do almost anything. Typically your system administrator or someone pretending to be your system…
superuser do (sudo)Allows a system administrator to give certain users (or groups of users) the ability to run some (or all) commands as root or another user while logging…
Supervised clusteringSupervised clustering provides a grouped view based on pre-defined categories, and maps results to pre-determined categories (that is, category…
Supervisory controlA system used to monitor conditions and operate mechanical features associated with a facility from a location other than at the site.
supervisory programA program, usually part of an operating system, that controls the execution of other routines and regulates work scheduling, input-output operations…
Supervisory ProgramsComputer programs that have the primary function of scheduling, allocating, and controlling system resources rather than processing data to produce…