Technology terms starting with R

1,106 terms

registry provider An implementation of a business registry that conforms to a specification for XML registries (for example, ebXML or UDDI).
Regrade To determine that certain classified information requires, in the interests of national security, a higher or lower degree of protection against…
regular expression A single entity with various interpretations, like an elephant. To a computer scientist, it's a grammar for a little language in which some strings are…
regular expression modifier An option on a pattern or substitution, such as /i to render the pattern case insensitive. See also "cloister".
regular file A "file" that's not a "directory", a "device", a named "pipe" or "socket", or a "symbolic link".
Reinclusion If a site has been penalized for spamming they may fix the infraction and ask for reinclusion.
reject An option during approval to prevent a draft document from being published and return it to authors for additional editing. See also: approval
rekeying The changing of one or more keys that are used for either COMSEC or TRANSEC functions.
REL NAV Relative Navigation (JTIDS term).
relate An operation that establishes a temporary connection between corresponding records in two tables using an item common to both (i.e., relate key).
relate key The common set of columns used to relate two attribute tables. See also relate, primary key and foreign key.
relation See table.
relational database A method of structuring data as collections of tables that are logically associated to each other by shared attributes.
Relational database management system (RDBMS) A database management system with the ability to access data organized in tabular files that can be related to each other by a common field (item).
Relational Database Service (RDS) A web service that allows users to set up, operate and scale a relational database in the cloud.
relational join The operation of relating and physically merging two attribute tables using their common item.
relational operator An "operator" that says whether a particular ordering relationship is "true" about a pair of operands.
relational operators Operators, such as <, >, <=, >=, == and !=, that produce a boolean result, as part of a boolean expression.
relationship field A virtual field of an entity bean having container-managed persistence; it identifies a related entity bean.
relative address In computer and data processing programming, an address that is expressed as a difference in relation to a base address. [After Weik '96]
Relative boosting This enables a document to always be displayed among the first 20 documents in the result list, provided a user searched with a specific query.
Relative Distinguished name (RDN) The part of the name of an object that is an attribute of the object itself. The attribute that provides the RDN for an object is referred to as the…
relative error The ratio of an absolute error to the true, specified, or theoretically correct value of the quantity that is in error.
relative filename A filename whose full path is relative to some point within a file system tree - often the current working folder (directory). For instance ../bin/javac.
Relative humidity (RH) The amount of water in the air relative to the maximum amount of water that the air can hold at a given temperature.
relative ID The portion of a security identifier (SID) that identifies a user or group in relation to the authority that issued the SID.
Relative ID (RID) The master service that is responsible for the assignation of relative IDs to other domain controllers within the domain.
relative identifier The portion of a security identifier (SID) that identifies a user or group in relation to the authority that issued the SID.
Relative Link A link which shows the relation of the current URL to the URL of the page being linked at.
relative spectral width See spectral width.
relative transmission level The ratio of the signal power, at a given point in a transmission system, to a reference signal power.
Relay Allows an SMTP server to accept any email destined for other hosts and re-deliver that mail to the proper host, much like a feild and track relay race…
relay configuration An operating configuration in which a circuit is established between two stations via an intermediate relay station.
Relay Mirror Part of a ground-based laser system.
relay station An intermediate station that passes information between terminals or other relay stations. 2.
release (full release, partial release) A review determination that the material may be accessed by the public, either in full or in part.
release node The initial destination of a call from a pivot node. Note: A service or network capability provided at the release node, after determining the call should…
release prefix [A] prefix appended to the short title of U.S.-produced keying material to indicate its foreign releasability.
release time The time interval between (a) the instant that an enabling signal (as in a vogad or echo suppressor) is discontinued, and (b) the instant at which…
release timer A timer that specifies the period of time the network will wait for a release from the user after informing the user of a failure condition such as busy.
released loop Synonym switched loop.
Relevance the likelihood that a given web page will be of interest or useful to a search engine user for a keyword search.
Relevance or Relevance ranking Relevancy is the measure of how well the indexed page answers the question. Only the searcher can actually define how relevant a document is, in relation…
Relevancy A measure of how useful searchers find search results. Many search engines may also bias organic search results to informational resources since…
Relevancy Algorithm The method a search engine or directory uses to match the keywords in a query with the content of each web page, so that the web pages found can be…
Reliability The consistency of a measure or question in obtaining very similar or identical results when used repeatedly; for example, if you repeated a blood test…
reliability (performance) See performance reliability.
Reliability and Maintainability (R&M) Reliability and maintainability design parameters are key factors in the design of affordable and supportable systems.
reliability assessment The process of determining whether existing hardware, firmware, or software has achieved a specified level of operational reliability. 2.
reliability evaluation Synonym reliability assessment.
Reliability, Availability, and Maintainability (RAM) Those requirements imposed on acquisition systems to ensure they are operationally ready for use when needed, will successfully perform assigned…
relocation Another term for Migration usually used to describe moving a virtual machine image across geographic locations.
relocation site See cold site, hot site, and warm site.
Relying Party An entity that relies upon the subscribers credentials, typically to process a transaction or grant access to information or a system.
REM Roentgen Equivalent Man.
remanence 1. Residual information remaining on storage media after clearing. [INFOSEC-99] 2.
Remediation The cleanup or containment of a hazardous waste disposal site to the satisfaction of the applicable regulatory agency.
Remediation Plan A plan to perform the remediation of one or more threats or vulnerabilities facing an organizations systems.
Reminders Some free email providers allow you to set up reminders, which are messages that will automatically be sent to you on a certain date to remind you of…
Remnant Inventory Low-cost advertising space that is relatively undesirable or otherwise unsold.
Remote Access The ability to access and use digital information from a location off-site from where the information is physically located.
remote access data processing Data processing in which some input/output functions are performed by devices that are connected to a computer system by means of data communication.
remote access line An access line (e.g., for WATS or TWX service) between a subscriber's premises in one toll rate center and a serving central office located in a different…
remote alarm In a PVP (packetized voice protocol) node, an indication that the far-end PVP node is experiencing an alarm condition.
remote alarm indication (RAI) A signal transmitted in the outgoing direction when a terminal determines that it has lost the incoming signal.
remote AllCall registration A feature that enables the UPT user to make a remote Incall registration and a remote OutCall registration to the same terminal address using one single…
Remote Authentication Dial-In User Service A security authentication protocol based on a client/server model. RADIUS is widely used by Internet service providers (ISPs) for authenticating and…
Remote Authentication Dial-In User Service (RADIUS) A client-server protocol for accessing a directory service. NetCache can be configured to point to a RADIUS server for authentication of user requests.
remote batch entry Submission of batches of data through an input unit that has access to a computer through a data link.
remote batch processing Batch processing in which input-output units have access to a computer through a data link.
remote boot Of a computer, its start or restart from a remote location. Note: A remote boot may be accomplished by a hardware or software trigger.
remote call forwarding A service feature that allows calls coming to a remote call-forwarding number to be automatically forwarded to any answering location designated by the…
remote clock A clock that is remote from a particular facility, such as a communications station or node, with which it is associated. 2.
remote control equipment Devices used to perform monitoring, controlling, and/or supervisory functions, at a distance.
remote defect indication (RDI) A signal transmitted at the first opportunity in the outgoing direction when a terminal detects specific defects in the incoming signal. [T1.231-1997]
remote delivery queue A group of temporary queues that hold messages that are being delivered to a remote destination by using SMTP.
Remote Desktop A Windows feature that allows users to connect remotely to a computer and access programs, files, and network resources as though they were sitting at the…
Remote Desktop Connection The client software that enables users to connect to a remote computer or terminal server that has the Remote Desktop feature enabled.
Remote Desktop Web Connection A feature of Windows that when deployed on a Web server, allows a user to connect to terminal servers and other computers through a Web browser, even if…
Remote Desktops A snap-in that allows users to manage Remote Desktop connections to terminal servers and computers that are running Windows Server.
remote device wipe A technology that enables the Exchange server to set a mobile device to erase all data the next time the device connects to the Exchange server.
remote digital terminal (RDT) 1. An intelligent network element that interfaces between customer access lines and digital facilities. [T1.508-1998] 2.
remote failover Failover to a node at another data center or remote location.
remote failure indication (RFI) A signal transmitted in the outgoing direction when a terminal determines that specific defects have persisted long enough to declare a received signal…
remote federator A server federator that federates a set of searchable objects.
remote host A Web server on a separate server computer. A remote host is connected to other servers by way of a network connection.
remote interface One of two interfaces for an enterprise bean. The remote interface defines the business methods callable by a client.
remote job entry (RJE) In computer operations, a mode of operation that allows execution of job instructions received from a remote site and return of the output to the same or…
remote line location A remotely located subscriber line access unit which is normally dependent upon the central processor of the host office for call processing functions.
remote linked registration A feature by which a linked registration for one specified terminal address can be carried out from another terminal address. [T1.701-1994]
remote login A login that allows a user terminal to connect to a host computer via a network or direct telecommunications link, and to interact with that host computer…
remote logon Synonym remote login.
Remote Maintenance Maintenance activities conducted by individuals communicating external to an information system security perimeter.
remote memory memory that does not lie in the node from which it is being accessed.
remote operations service element (ROSE) protocol A protocol that (a) provides remote operation capabilities, (b) allows interaction between entities in a distributed application, and (c) upon receiving a…
remote orderwire An extension of a local orderwire to a point convenient for personnel to perform required operational and maintenance functions.
Remote Procedure Call (RPC) A Remote Procedure Call (RPC) is a communication mechanism which allows one UNIX process to communicate with another UNIX process.
remote rekeying The encrypted transmission of keys from a remote source. 2. [A] procedure by which a distant crypto-equipment is rekeyed electrically. [INFOSEC-99]
remote sensing Method for determining characteristics of an object, organism or community from afar.
Remote Server Administration Tools A feature in Windows Server that enables remote management of Windows Server operating systems by allowing users to open and run management tools on a…