graceful degradation

graceful degradation

[′grās·fu̇l ‚deg·rə′dā·shən]
(computer science)
A programming technique to prevent catastrophic system failure by allowing the machine to operate, though in a degraded mode, despite failure or malfunction of several integral units or subsystems.

graceful degradation

A system that continues to run at some reduced level of performance after one of its components fails. It is a level below fault-tolerant systems, which continue running at the same rate of speed. For example, a two-computer complex employing graceful degradation would be reduced to using one system if the other fails. With fault tolerance, a third computer would be standing by to take over in the event of failure. See fault tolerant and graceful exit.
References in periodicals archive ?
Their limitations in complexity and cost have been counterweighted in LEO/MEO applications by their wide scan capability and graceful degradation.
More graceful degradation of performance when blockage occurs
Indeed if one system is not used its energy can be used by others and if damaged the power will not be cut but will follow a graceful degradation path, while a diode indicator indicates remaining power.
The availability of inspected systems subject to shocks and graceful degradation, IEEE transactions on Reliability, Vol 51 (3): 371-374 .
High mobility reception, for example, in 700 MHz, FLO-enabled receivers can operate efficiently at vehicular speeds up to 200 km/hr with graceful degradation of service at even higher speeds.
COM programmers are responsible for entering and leaving the COM environment, instantiating and reference counting COM objects, querying objects for version information, coding to take advantage of advanced object versions, and coding graceful degradation of function when newer versions aren't available.
Farmersmanuel, an artist from Vienna, exhibited Graceful Degradation, 2001--2002, a video projection of a digital code that was supposed to represent the frequency of Internet hits.
These objections include: (a) the question of (structural) implementation of symbol systems; (b) lack of specification of the algorithms that manipulate symbols; (c) lack of graceful degradation of a symbolic system; (d) limitation of symbol systems to very restricted and narrow domains of application.
This all leads to a responsive system with low latency data distribution, and good scalability with graceful degradation in times of peak load.
ESA antennas offer numerous system level benefits such as rapid beam movement, reconfigurable antenna patterns, and graceful degradation of performance as the system ages.
It should be noted that DAB+ has a 2dB advantage over DAB because of better error correction and that, when compared to FM, digital reception is unforgiving, as there is no graceful degradation as in FM.