ring tripRemoval of an alerting signal in response to a loop closure. [T1.407-1997]
ringaround1. The improper routing of a call back through a switching center already engaged in attempting to complete the same call. 2.
ringback signalIn telephony, a signal, usually consisting of an audio tone interrupted at a slow rate, provided to a caller to indicate that the called-party instrument…
ringdownIn telephony, a method of signaling an operator in which telephone ringing current is sent over the line to operate a lamp and cause the drop of a…
ringdown circuitIn telephony, a circuit in which manually generated signaling power is used to perform ringdown.
ringdown signalingIn telephony, the application of a signal to a line (a) to operate a line signal lamp or a supervisory signal lamp at a switchboard or (b) to ring a…
ringer equivalency number (REN)A number determined in accordance with the Code of Federal Regulations, Title 47, part 68, which number represents the ringer loading effect on a line.
ringingOscillations that occur in the output of systems after a sudden change in the input. [T1.646-1995]
ringing cycleIn traditional telephony, a nominal period (usually approximately 6 seconds) composed of alternate (a) ringing signals (ringing current) and (b) a silent…
ringing signal1. The alternating current (ac) component of the alerting signal. [T1.401-1988] [T1.407-1990] 2.
RIPThe procedures used to unbundle email collections into individual emails during the e-discovery process while preserving authenticity and ownership.
rip cordOf an optical cable, a parallel cord of strong yarn that is situated under the jacket(s) of the cable for the purpose of facilitating jacket removal…
ripple voltageIn a dc voltage, the alternating component that is residually retained from rectification of ac power, or from generation and commutation. 2.
rise timeIn the approximation of a step function, the time required for a signal to change from a specified low value to a specified high value.
RiskThe possibility of loss; the uncertainty of future returns.
risk acceptanceA managerial decision to accept a certain degree of risk, usually for technical or cost reasons. [2382-pt.8]
risk analysisA process consisting of three components: risk assessment, risk management and risk communication performed to understand the nature of unwanted, negative…
risk assessmenta scientifically based process consisting of the following steps: i) hazard identification; ii) hazard characterization; iii) exposure assessment; and iv)…
risk index[The] difference between the minimum clearance or authorization of information system (IS) users and the maximum sensitivity (e.g.
risk managementThe process, distinct from risk assessment, of weighing policy alternatives, in consultation with all interested parties, considering risk assessment and…
Risk MitigationRisk mitigation involves prioritizing, evaluating, and implementing the appropriate risk-reducing controls recommended from the risk assessment process.
Risk ToleranceThe degree to which you are willing to risk losing some (or all) of your original investment in exchange for a chance to earn a higher rate of return.
RISTAReconnaissance, Intelligence, Surveillance, and Target Acquisition.
RMI (Remote method invocation)Remote method invocation (RMI) is a feature of Java SE that enables Java objects running in one virtual machine to invoke methods of Java objects running…
RMI OP (RMI Optional Package)The RMI Optional Package (RMI OP) is a subset of Java SE 1.3's RMI functionality used in CDC-based profiles that incorporate the Foundation Profile, such…
RMI ProfileThe RMI Profile is a Java ME profile specification designed to support Java's Remote Method Invocation (RMI) distributed object system.
RMI-IIOPA version of RMI implemented to use the CORBA IIOP protocol. RMI over IIOP provides interoperability with CORBA objects implemented in any language if all…
RMS(1) Remote Manipulator System. (2) Root Mean Square.
RMS (Record Management System)The Record Management System (RMS) is a simple record-oriented database that allows a MIDlet to persistently store information and retrieve it later.
ROReceiving Office - the national Office or the intergovernmental organization with which an international application has been filed.
roamingIn cellular technology (mobile telephone technology), the use of a wireless telephone outside a specified tariffed geographic area defined by the service…
Robots Exclusion ProtocolA protocol that allows Web site administrators to indicate to visiting robots which parts of their site should not be visited by the robot.
Robots.txtA text file stored in the top level directory of a web site to deny access by robots to certain pages or sub-directories of the site.
RobustUsed in describing a system; indicates its ability to endure and perform its mission against a responsive threat.
Robustness(1) The ability to produce correct results despite input errors. (2) The existence of coordinated, multiple capabilities that perform the same broad…
ROC (Raid on Chip)Single chip that provides hardware RAID protection by combining features and functionality that previously required separate components; a single chip…
role (development)The function performed by a party in the development and deployment phases of an application developed using J2EE technology.
role (security)An abstract logical grouping of users that is defined by the application assembler.
role mappingThe process of associating the groups or principals (or both), recognized by the container with security roles specified in the deployment descriptor.
role serviceA software program or logical collection of software programs that provide the functionality of a role.
rolesLogical sets of permissions, similar to groups, which determine access to documents in the workspace.
roll backTo cancel any changes to a database made during the current transaction. Compare with commit.
rollbackA return to a previous state that follows the failure to create an object, such as AWS CloudFormation stack.
Rolled FingerprintsAn image that includes fingerprint data from nail to nail, obtained by “rolling” the finger across a sensor, as illustrated below.
rolling disasterA second disaster that occurs before recovering from a previous disaster, e.g. while data is being synchronized between two data centers after a disaster…
Rolling Disposal Request (RM6)A disposal request form implemented with the intent to provide an agency with the State Record Committee’s annual revolving approval to dispose of…
ROMRead Only Memory - the hardware in a computer that that can be read but not written to.
ROMB (RAID on Motherboard)A solution that is extremely cost-effective and compact in its design because all of the components of the RAID device are included on the motherboard.
roofing filterA low-pass filter used to reduce unwanted higher frequencies.
Room ambient conditionsThe temperature, humidity, and air quality of the surrounding conditions. Those conditions generally found in a library, resource, studio, or office…