Reliability and Maintainability (R&M)Reliability and maintainability design parameters are key factors in the design of affordable and supportable systems.
Remotely Piloted Vehicle (RPV)An unmanned vehicle capable of being controlled from a distant location through a communication link. It is normally designed to be recoverable.
ReprogrammingThe transfer of funds between program element and line items within an appropriation for purposes other than those contemplated at the time of…
Request for Proposal (RFP)A solicitation used in negotiated acquisition to communicate government requirements to prospective contractors and to solicit proposals. 247
Request for QuotationA solicitation used in negotiated acquisition to communicate government requirements to prospective contractors and to solicit a quotation.
Required Operational Capability (ROC)OBSOLETE. A document stating need and specific operational capability. Replaced by the Operational Requirements Document (Army, USMC).
Required Operational CharacteristicsSystem parameters that are primary indicators of the systems capability to be employed to perform the required mission functions, and to be supported.
Required Technical CharacteristicsQuantitative system performance parameters, approved by the DoD Component, that are selected as primary indicators of technical achievement of engineering…
Requirements AnalysisAn analysis to determine and document the need for resources to perform the agencys mission.
Requirements DocumentA document that sets forth the requirements for a system or system component; for example, a software configuration item.
RESAResearch, Evaluation, and Systems Analysis simulation facility (USN), San Diego, CA.
RescissionThe cancellation, or “tearing-up,” of a contract. Some consumer loans (home mortgages) feature a 3-day right of rescission during which the borrower…
Research and Development CostsThose program costs primarily associated with R&D efforts including the development of a new or improved capability to the point where it is ready for use.
Response Plan SelectionThe continual comparison of the nature of the observed threat with the defense system capabilities and selects the best way to attack the threat in…
Responsive ThreatThe threat after taking into account modernization and countermeasures introduced to offset the capabilities of the SDS.
RestitutionAct of restoring anything to its rightful owner; the act of restoring someone to an economic position he enjoyed before he suffered a loss.
Retrograde OrbitAn orbit having inclination of 0 to 90 degrees (See Prograde Orbit).
Reverse EngineeringThe process of analyzing a system to identify its intricacies and their interrelationships, and create depictions of the system in another form or at a…
REVICRevised Enhanced Version of Intermediate COCOMO (Computer term).
Revisit IntervalThe time that elapses between successive observations of an object from a single sensor.
risk assessmenta scientifically based process consisting of the following steps: i) hazard identification; ii) hazard characterization; iii) exposure assessment; and iv)…
RISTAReconnaissance, Intelligence, Surveillance, and Target Acquisition.
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…