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 ?
Phased arrays avoid the mechanical maintenance and keyhole effects of parabolic antennas while providing graceful degradation and electronic agility in matching aperture performance to constellation demands.
being equipped with "Graceful Degradation" mechanisms by means of automatic alerts and gradual operation cessation abilities in AI used for healthcare activities in the event of any hardware or software malfunctioning.
"What we have to do is be resilient and healing so we can continue the fight in a graceful degradation or a resilient mode," he said.
A built-in monitoring and protection system features graceful degradation at temperatures >40[degrees]C and power reduction to a safe level if VSWR exceeds 2:1.
This modular approach reduces the total cost of ownership by enabling the use of COTS components and MMIC technology, by simplifying installation and integration, by allowing graceful degradation with no single point of failure (PoF), and by permitting in-field TRM replacement (LRU) without having to take the entire system off-line.
"At times of heavy use, the result is 'graceful degradation of service'.
This material is the result of extensive development by the company and is specifically designed for graceful degradation, to ensure that cabinets and shelters maintain their mechanical integrity and thermal insulation properties for as long as possible in a fire.
The group also demanded to know why the government regulators have not followed the principle of "graceful degradation" instead of across-the-board cuts at choke points like Chicago and New York City, which could cause massive nationwide flight delays.
Another fault tolerant scheme that can be implemented with the SKS adder is a form of graceful degradation. An RCA block, labeled RCSpare, is inserted into the design as illustrated in Figure 13.
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 .
Topics covered include site organization, navigation tools, accessible HTML, image maps, use of color, style sheets, multimedia, JavaScript, graceful degradation, PDF access issues, and site evaluation.