on the application and the available hardware. ref Faulttolerant computer system design book ... The most important requirement of design in a Faulttolerant design faulttolerant computer system ...Image Distribfaultredudance.PNG thumb widthpx A conceptual design of a segregated component faulttolerant computer design Faulttolerant computer systems are systems designed around the concepts of fault ... of faults. Types of fault tolerance Most faulttolerant computer systems are designed to be able ... into smaller segments that act to contain a fault, and extra redundancy is built into all physical connectors, power supplies, fans, etc. ref Formal Techniques in Real Time and FaultTolerant ... ISBN 0 07 057302 6, 978 0 07 057302 4 ref In general, the early efforts at faulttolerant designs were ... before failure. ref Faulttolerant computing in computer design Neilforoshan, M.R Journal of Computing ..., and it is still the most common form of level one faulttolerant design in use today. Voting was another ... were among the first companies specializing in the design of faulttolerant computer systems for Online .... ref Reliability Evaluation of Some FaultTolerant Computer Architectures By Shunji Osaki, Toshihiko Nishio Published by Springer, 1980 ISBN 3 540 10274 4, 978 3 540 10274 8 ref See also Faulttolerant ... Faulttolerant computer systems&hl en&ct clnk&cd 13&gl us&client firefox a Primer on FaultTolerant Computer Systems from UCLA http www.freepatentsonline.com 5099485.html A faulttolerant ... systems Category Computer architecture Category Classes of computers Category Faulttolerant ... software and physical damage or other flaws introduced to the system from an outside source. ref Faulttolerant computer system design book contents. Dhiraj K. Pradhan, Pages 135 138 1996 ISBN 0 13 057887 8 ref Hardware fault tolerance is the most common application of these systems, designed to prevent ... 1 ref There are special software and instrumentation packages designed to detect failures, such as fault ... more details
This article contains specific implementations of faulttolerant systems. For general theory, see faulttolerant design . Fault tolerance or graceful degradation is the property that enables a system often computer system computer based to continue operating properly in the event of the failure of or one ... five nines system would statistically provide 99.999 availability. Faulttolerant systems ... engineering Category Software quality Category RAID Category Faulttolerant computer systems ar cs Faulttolerantsystem de Fehlertoleranz ko it Tolleranza ai guasti nl Fouttolerant ... availability or life critical system s. Fault tolerance is not just a property of individual machines ... them without causing the document to be unusable. Recovery from errors in faulttolerant systems ... or different parts of one error. Within the scope of an individual system, fault tolerance can ... propagation of the failure Availability of reversion modes In addition, faulttolerant systems ... redundant array of independent disks , except RAID 0, are examples of a faulttolerant data storage device storage device that uses data redundancy . A lockstep computing lockstep faulttolerant machine ... number of replications. Lockstep computing Lockstep faulttolerant machines are most easily made .... Fault containment Some failure mechanisms can cause a system to fail by propagating the failure ... transmitter or failing component to protect the system are required. See also Byzantine fault ..., uber category, or just the same thing? Merge? fall back and forward Faulttolerant design Fault ... issn 0360 0300 cite journal author P. J. Denning title Faulttolerant operating systems ... 677518.html Practical Considerations in Making CORBA Services FaultTolerant by Priya ..., Strategies and Challenges in Building FaultTolerant CORBA Systems by Pascal Felber and Priya Narasimhan ... www.hpc4u.org HPC4U addressing development of faulttolerant technologies for Grid computing environments ... more details
dablink This article is about general faulttolerant design theory. For specific implementations, see faulttolerantsystem . Refimprove date January 2008 In engineering , faulttolerant design is a design ... margin. Examples main Faulttolerantsystem Hardware fault tolerance sometimes requires that broken ..., but this is not specifically required in a faulttolerantsystem. Fault tolerance is notably ... of the fault, having a faulttolerantsystem is likely to reduce the importance of repairing the fault. If the faults are not corrected, this will eventually lead to system failure, when the faulttolerant ... than, a comparable non faulttolerantsystem. Related terms There is a difference between fault ... . When to use Providing faulttolerant design for every component is normally not an option. In such cases the following criteria may be used to determine which components should be faulttolerant ... faulttolerant? Requiring a redundant car engine, for example, would likely be too expensive ... tolerant , and represents the vast majority of faulttolerant systems. In such systems the mean time ... computer science . Disadvantages Faulttolerant design s advantages are obvious, while many of its ... of the faulttolerant systems. This is usually handled with a separate automated fault detection ... the driver. The alternative is a manual fault detection system , such as manually inspecting ... tolerance in B can hide a problem with A. If component B is later changed to a less faulttolerant .... For certain critical faulttolerant systems, such as a nuclear reactor , there is no easy way to verify .... Both faulttolerant components and redundant components tend to increase cost. This can be a purely ..., have so many redundant and faulttolerant components that their weight is increased dramatically ... tolerant . See also Error tolerant design Capillary routing Fail safe Fail soft Faulttolerant ... with Robert Hanmer about his book Patterns for FaultTolerant Software http se radio.net podcast ... more details
risk mitigation strategies. See also Faulttolerant design FaulttolerantsystemFaulttolerant computer system References Reflist Category Software architecture Category Fault tolerance ...Faulttolerant software has the ability to satisfy requirements despite failures. ref Cite web url http www.ece.cmu.edu koopman des s99 sw fault tolerance title Software Fault Tolerance publisher Carnegie Mellon University ref ref Cite web url http people.csail.mit.edu strumpen micro98.pdf title Portable and FaultTolerant Software Systems publisher Massachusetts Institute of Technology ref Definition The fundamental requirement is to prevent the following from interfering with operation. Operating system failures Hardware failure Operating system failure Computer applications make a call using the application programming interface API to access shared resources, like the keyboard, mouse, screen, disk drive, network, and printer. These can fail in two ways. Blocked Calls Faults Blocked calls A blocked call is a request for services from the operating system that halts the computer program until results are available. As an example, the TCP call blocks until a response becomes available from a remote server. This occurs every time you perform an action with a web browser. Intensive calculations cause lengthy delays with the same effect as a blocked API call. There are two methods used ... state Semaphore programming Semaphore Blocking computing Blocking Faults Fault are induced by Signal ... system, and from other applications. Any signal that does not have handler code becomes a fault that causes premature application termination. The handler is a function that is performed on demand ... fault tolerance for software requires the following. Backup Redundancy engineering Redundancy Backup ... system. The restore process is usually time consuming, and information will be unavailable ... backup to a live system that remains inactive until needed synchronized backup . This can also be achieved ... more details
The Configurable FaultTolerant Processor CFTP , developed by the Space Systems Academic Group at the Naval Postgraduate School , is an experimental payload on board the United States Naval Academy s USNA MidSTAR I USNA MidSTAR 1 satellite. Midstar 1 was launched into a 492km low earth orbit LEO on March 8, 2007, aboard an Atlas V expendable launch vehicle from Cape Canaveral Air Force Station , along with FalconSat 3 , STPSat 1 , and CFESat as secondary payloads. The primary payload was Orbital Express . CFTP Purpose The Configurable FaultTolerant Processor Project aims to demonstrate the feasibility of using Field Programmable Gate Array s FPGAs for spacecraft computer processing by applying various fault tolerance techniques to the designs. CFTP provides a valuable testbed for on orbit evaluation of various faulttolerant concepts. The use of FPGAs provides added flexibility, allowing on orbit upgrades and rapid development cycles. Using Commercial off the shelf COTS technology allows the engineer to produce more technologically advanced designs at a lower cost and in a shorter time than using more traditional space grade components. Space based FPGA design also provides the Naval Postgraduate School students with unique challenges in developing for and configuring the system. Remotely accessing the platform over a limited downlink and uplink provides challenges not seen on ground based systems. ref cite web title Challenges of Remote FPGA Configuration for Space Applications publisher Naval Postgraduate School date 2005 03 05 url http ieeexplore.ieee.org iel5 10432 33126 01559549.pdf?tp &arnumber 1559549&isnumber 33126 ref CFTP Versions CFTP 1 The CFTP 1 board utilizes ... Davis cyclotron facility prior to integration with the MidSTAR satellite. CFTP 2 The CFTP 2 system is currently an entirely ground based system. The CFTP 2 board itself is set up nearly identically ..., rather than the Xilinx Virtex I part on CFTP 1. This system was tested in a proton beam using the University ... more details
FaultTolerant Ethernet FTE is designed to provide rapid network redundancy. Each Node networking node is connected twice to a single LAN through the dual network interfaces. The driver and the FTE enabled components allow network communication to occur over an alternate route when the primary route fails. ref http hpsweb.honeywell.com Cultures en US Products Systems ExperionPKS FaultTolerantEthernet default.htm ref FTE was created by Honeywell . References references External links http hpsweb.honeywell.com Cultures en US Products Systems ExperionPKS FaultTolerantEthernet default.htm Honeywell FaultTolerant Ethernet Page Category Computer networking ... more details
FaultTolerant Messaging or Failover Abstraction is the ability to transparently failover a call or request from one service transport protocol to another upon failure with no changes to the functional code or business logic implementation. In elemenope , this ability to failover is achieved via Dispatcher Failover DFo configuration. The elemenope framework has the ability to configure multiple nested failover chains. A typical use of the DFo functionality is the failover from a synchronous service transport protocol to an asynchronous service transport protocol. For instance, when an XML RPC service is down, the messages may be failed over to an asynchronous JMS queue implementation for processing when the service is available. Source elemenope User Guide See also elemenope External links As of 29 May 2007, this article is derived in whole or in part from http elemenope.org doc userguide LICENSE The Elemenope User Guide . The copyright holder has licensed the content utilized under Wikipedia Text of the GNU Free Documentation License GFDL . All relevant terms must be followed. http elemenope.org elemenope home page http elemenope.org doc userguide userguide 1.1.pdf elemenope User Guide Category Software architecture ... more details
SystemFault Tolerance SFT is a faulttolerantsystem built into Netware operating system s. There are three levels of fault tolerance SFT I Hot Fix maps out bad disk blocks on the file system level to help ensure data integrity fault tolerance on disk block level SFT II is a disk mirroring or duplexing system based on RAID 1 mirroring refers to two disk drives holding the same data, duplexing uses two data channels controllers to connect the disks fault tolerance on disk and optionally data channel level . SFT III is a server duplexing scheme where if a server computing server fails, a constantly synchronized server seamlessly takes its place fault tolerance on system level . References http www.novell.com documentation nw42 index.html?cncptenu data hdqefjoy.html Novell Netware 4.2 documentation Category Novell NetWare comp sci stub hu SystemFaultTolerant ... more details
Valley FaultSystem valley faultsystem is the common name for fault systems in valleys and basins including Great Valley faultsystem Independence Valley faultsystem Las Vegas Valley faultsystem Marikina Valley FaultSystem Wabash Valley FaultSystem disambig ... more details
The Independence Valley faultsystem is a group of interrelated normal Fault geology fault s located in northeastern Nevada in the United States . The faultsystem is characteristic of faulting throughout the Great Basin region. 2008 Wells earthquake A strong 6.0 magnitude earthquake occurred on the morning of February 21, 2008 just northeast of the town of Wells, Nevada Wells , Nevada , causing moderate damage, mainly to older brick buildings. The quake was centered on one of the faults of the Independence Valley faultsystem, about nine kilometers 5.6 miles beneath the surface. References http gldims.cr.usgs.gov webapps cfusion Sites qfault qf web disp.cfm?disp cd B&qfault or 591&ims cf cd cf USGS Independence Valley faultsystem http earthquake.usgs.gov eqcenter eqinthenews 2008 us2008nsa9 2008 Wells Earthquake coord missing Nevada Faults DEFAULTSORT Independence Valley FaultSystem Category Natural disasters in Nevada Category Geology of Nevada Category Seismic faults of the United States Tectonics stub ... more details
Image Clarendon Linden Fault.jpg right thumb 325px Location of the Clarendon Linden faultsystem in western New York The Clarendon Linden faultsystem is a major series of fault geology fault lines in western New York state, in the United States . It extends through Orleans, Genesee, Wyoming, and into Allegany counties and is responsible for much of the seismic activity in the region. The system is named in part for the town of Clarendon, New York . References University at Buffalo, Dept of Geology http www.glyfac.buffalo.edu Jacobi sed strat.html Sedimentology and Stratigraphy. Faults DEFAULTSORT Clarendon Linden FaultSystem Category Seismic faults of the United States Category Geology of New York tectonics stub US geology stub ... more details
The Philippine FaultSystem is an inter related system of fault geology faults throughout the whole of the Philippine ... as an inter related Philippine FaultSystem. The Philippine fault, probably active since the Middle Miocene is a recent example of the north south strike slip fault zones of Luzon. The N150E segment, which breaks the meridian continuity of the Philippine Faultsystem in Luzon, is located to the west of Benham Plateau on the western edge of the Philippine Sea Plate. The N150E fault probably ... , scientists reconsidered their fault models and following the lead of Pinet and Stephan 1989 , thought it likely that Benham Plateau is still displacing central Luzon and the Philippine FaultSystem ... the Philippine FaultSystem Image PhilippineFaultSystem015.jpg Tectonic Map of Northern Central Philippines including the Philippine FaultSystem Image PhilippineFaultSystem025.jpg Tectonic Map of Central Philippines including the Philippine FaultSystem Image PhilippineFaultSystem035.jpg Tectonic Map of Southern Philippines including the Philippine FaultSystem Image PhilippineFaultSystem045.jpg Tectonic Map of Far Southern Philippines including the Philippine FaultSystem Image PhilippineFaultSystem019.gif Tectonic diagram of the Philippines, showing Philippine FaultSystem generally Image PhilippineFaultSystem03.jpg Diagram of Northern and central sections of the Philippine FaultSystem Image PhilippineFaultSystem13.jpg Diagram of Northwest Luzon section of Philippine FaultSystem ... FaultSystem External links http earthquake.phivolcs.dost.gov.ph update SOEPD EQLatest.html Latest .... The strips generally run north south and the zones of convergence are usually demarkated by fault lines ... fault runs most of the length of the Philippines and is called the Philippine Fault see Gallery . In northern Luzon, the fault has become braided and is no longer single. All faults in the Philippines ... quake developed a new east west sub fault, which terminated disastrously at Baguio . Gallery gallery ... more details
The Welsh Borderland FaultSystem is a zone of fault geology faulting and associated fold geology folding which runs northeastwards through Wales from Pembrokeshire through Carmarthenshire and Powys into Shropshire in England . The southern margin of the System is defined by the Church Stretton Fault and Dulas Valley Fault, amongst others whilst its northern margin is defined by the Garth Llanwrtyd Fault Belt in Carmarthenshire. The system was active during the Caledonian Orogeny and was reactivated during the later Variscan Orogeny . ref Geology of the Llandovery District a brief explanation of the geological maps sheet 212 Llandovery ref References reflist Category Geology of Wales ... more details
NIFS.png thumb 250px Main active strands of the North Island FaultSystem The North Island FaultSystem or North Island Dextral Fault Belt is a set of southwest northeast trending active fault seismically ... Faults to the northeast. Most of the faultsystem consists of dextral strike slip faults, although ... to seismic hazard, North Island FaultSystem, New Zealand ref Faults The North Island FaultSystem consists of eight main fault strands and many other smaller related faults. Wellington Fault main Wellington Fault The Wellington Fault is a dextral strike slip fault that runs from the Cook Strait on the southern coast of North Island up to near Woodville, New Zealand Woodville , where the fault ...File NZ faults .png thumb 250px Major active fault zones of New Zealand showing variation in displacement ... Fault geology Strike slip faults strike slip component of the oblique convergence of the Pacific Plate with the Australian Plate . They include the Wairarapa Fault and Wellington Fault to the southwest ... oblique normal in sense as the zone intersects with the Taupo rift zone. This fault zone accommodates ... this fault although a significant event is estimated to have occurred within the last 1,000 years. The recurrence interval for large earthquakes on this fault is estimated to be less than 2,000 years ... the geometric segmentation and Holocene slip rate of the Wellington Fault, New Zealand the Pahiatua ... Wairarapa Fault main Wairarapa Fault The Wairarapa Fault extends from near the coast just southwest ... by movement along this fault. The recurrence interval for large earthquakes on this fault is less than 2,000 years. ref name NGS Science Ruahine Fault As the Wellington Fault branches near Woodville, the more northwesterly branch is known as the Ruahine Fault. Results from trenching over this fault ... Paper 971 publisher Earthquake Commission accessdate 6 October 2010 ref At its northern end this fault becomes the Waiohau Fault. ref name Mouslopoulou Mohaka Fault The more southeasterly branch of the Wellington ... more details
File MarlboroughFaultSystem.png thumb 250px Map of the Marlborough FaultSystem File NZ faults .png thumb 250px Major active fault zones of New Zealand showing variation in displacement vector of Pacific Plate relative to Indo Australian Plate Australian Plate along the boundary The Marlborough FaultSystem is a set of four large dextral Fault geology Strike slip faults strike slip faults and other ... Australian Plate Australian and Pacific Plate s. ref name Langridge Geometry The Marlborough FaultSystem consists of four main dominantly strike slip fault strands, which together carry almost ... faultsystem ref Faults There are four main fault strands, although many other smaller faults, of either strike slip or thrust type are known. Hope Fault main Hope Fault The Hope Fault forms the southernmost part of the Marlborough FaultSystem. The estimated slip rate during the Holocene ... Tectonic rotation about the termination of a major strike slip fault, Marlborough FaultSystem, New ... of the Marlborough FaultSystem are currently seismically active. Historical earthquakes since European ... that occurred during the Holocene on many parts of the faultsystem. ref name Langridge ref ... between the mainly Transform fault transform Plate tectonics plate boundary of the Alpine fault and the mainly ... at the western end of the Hope Fault and the Jordan Thrust that formed the Kaikoura Ranges Seaward ... of the intervening fault blocks of about 20 since the early Pliocene . ref name Roberts Development The Marlborough FaultSystem formed at about 5 Ma, during the early Pliocene , in response to a change in plate motions. The new plate vector was significantly oblique to the Alpine Fault, causing an increased ... its name from the Hope River, New Zealand Hope River , which runs along one of the central fault ... of the Conway Segment of the Hope Fault at Greenburn Stream, South Island, New Zealand journal Annals ... accessdate 27 June 2010 ref Clarence Fault main Clarence Fault The Clarence Fault runs from ... more details
This article is about the fault geographically located at the Philippines. For the series of faults located at northeastern Nevada, see Independence Valley faultsystem . File PhilippineFaultSystem015.jpg thumb 190px Illustration of the Philippine FaultSystem in Northern Central Philippines. Included in the illustration was the Valley FaultSystem which runs through the Metro Manila western Metropolitan Manila . The Valley FaultSystem and formerly as the Marikina Valley FaultSystem is a group ... Valley faultsystem MVFS and tectonic framework of structures in northern and central Luzon, Philippines ... ref and more than three million needed to be evacuated. ref name UFonVFS Fault segments The fault contains two segments, known as West Valley Fault and East Valley Fault both located in the Marikina City city of Marikina . West segment The west segment, known as the Western Marikina Fault was one of the two fault segments of the Valley FaultSystem which runs through the cities of Marikina City ... of the Valley FaultSystem . Philippine Institute of Volcanology and Seismology . http i191.photobucket.com albums z88 SCUD 1975 marikina.jpg Illustration of Valley FaultSystem http www.sciencedirect.com ... Valley faultsystem . ScienceDirect . http earthquake.usgs.gov regional pacnw paleo manila ..., Issues 1 4, 27 March 2006, Pages 17 38 ref Fault geology fault which extends from San Mateo, Rizal ... fault line title marikina valley fault line accessdate January 16, 2010 quote Are we ready for the Big One? ref USGS ref The fault possesses a threat of a large scale earthquake with a Moment magnitude ... Earthquake injured ref name VFS cite web url http www.pinoymoneytalk.com philippine fault zone title Big earthquake in Marikina Valley fault line? publisher Pinoymoneytalk.com accessdate 2010 01 ... slip motion. ref name SD MVF The West Fault is capable of producing large scale earthquakes on its active ... segment, known as Eastern Marikina Fault moves in an oblique Sinistral and dextral dextral ... more details
The Long Point Eureka Heights faultsystem is a system of geologic fault s in Houston Houston, Texas . It runs beneath the metropolitan area from the southwest to the northeast. The various faults are characterized as normal fault s, meaning that the downthrown side is in the direction of the dip of the fault plane. This faultsystem as well as others located in nearby parts of Texas are believed to have formed millions of years ago during the formation of the Gulf of Mexico . No significant earthquakes have occurred on these faults in historic times, but slow movement has been observed. References reflist http www.eurekalert.org pub releases 2008 04 uoh osg042408.php Houston On Shaky Ground http www.uh.edu news events archive nr 2008 04april geological faultsph.html University of Houston fault map http learning.nwc.hccs.edu members dwight.kranz geol1403 semester field project regional map of long point fault.jpg image view fullscreen Fault Map Faults Category Geology of Texas Category Seismic faults of the United States tectonics stub ... more details
The Wem Bridgemere Red Rock FaultSystem is a complex zone of intersecting fault geology fault s which defines the eastern boundary of the Cheshire Basin , a deep sedimentary basin in the northwest of England and extending south into the northern English Midlands Midlands . It includes the Red Rock Fault , Bridgemere Fault and Wem Fault and reaches from Shropshire through eastern Cheshire to southeast Lancashire . ref Plant et al. eds 1999 The Cheshire Basin basin evolution , fluid movement and mineral resources in a Permo Triassic rift setting . British Geological Survey ref At Norbury Brook, Poynton , on the border of Cheshire and Greater Manchester ,the Millstone Grit of the Pennines makes a convert 200 m downfall to be covered to the west by the glacial tills of the Cheshire Plain formed by the retreating ice age glaciers. To the east of the fault we have the Coal Measures of the Carboniferous period, which unlike those in the Lancashire Coalfield are missing the top layers. Here we find outcrops of the Middle Coal Measures. Coal from these strata, particularly the Four Foot mine or seam , the Five Foot mine and the Accommodation mine was Coal mining extract ed in the nineteenth and early twentieth century. ref name poyco1 cite web url http www.brocross.com poynton book poyco1.htm title Poynton Collieries the Early Years last Kitching first David year 2003 accessdate 9 January 2010 ref The two masses are still moving and regularly generate small earthquake s usually less than 3.0 on the Richter Scale along its length. In 2002 there was a swarm of 100 earthquakes felt in Manchester, close to the fault, over a period of a few days. ref http www.earthquakes.bgs.ac.uk macroseismics manchester earthquake sequence.htm British Geological Survey, Manchester Earthquake Sequence, October November 2002 ref The strongest was 3.9, on Thursday, 24 October 2002 at 08 25 GMT. ref name BBC cite news url http news.bbc.co.uk 1 hi england 2356203.stm title Series of quakes shake Manchester ... more details
Wiktionary Fault may refer to Fault geology , planar rock fractures which show evidence of relative movement Fault dog , in dog breeding, is an undesirable aspect of structure or appearance that indicates the dog should not be bred Fault legal , in criminal law, one must determine fault in a crime Fault technology , an abnormal condition or defect at the component, equipment, or sub system level which may lead to a failure Fault tennis , a serve that fails to place a tennis ball in the correct area of play Fault power engineering , an unintended electrical connection, a short circuit , may be an asymmetric or a symmetric faultFault computing , a type of interrupt in software or operating systems A penalty in show jumping applied in scoring horse and rider performance See also Active fault Defect disambiguation Error Mistake disambiguation disambiguation fr Faute ... more details
In mathematical logic , a tolerant sequence is a sequence math T 1 math ,..., math T n math of formal theory formal theories such that there are consistent extension s math S 1 math ,..., math S n math of these theories with each math S i 1 math interpretability interpretable in math S i math . Tolerance naturally generalizes from sequences of theories to trees of theories. Weak interpretability can be shown to be a special, binary case of tolerance. This concept, together with its dual concept of cotolerance , was introduced by http www.csc.villanova.edu japaridz Japaridze in 1992, who also proved that, for Peano arithmetic and any stronger theories with effective axiomatizations, tolerance is equivalent to math Pi 1 math consistency. See also Interpretability Cointerpretability Interpretability logic References http www.csc.villanova.edu japaridz G.Japaridze , The logic of linear tolerance . Studia Logica 51 1992 , pp. 249 277. http www.csc.villanova.edu japaridz G.Japaridze , A generalized notion of weak interpretability and the corresponding logic . Annals of Pure and Applied Logic 61 1993 , pp. 113 160. http www.csc.villanova.edu japaridz study.html G.Japaridze and D. de Jongh, The logic of provability . Handbook of Proof Theory . S.Buss, ed. Elsevier, 1998, pp. 476 546. Category Proof theory ... more details
No fault may refer to No fault divorce No fault insurance No fault liability disambig Long comment to avoid being listed on short pages ... more details
Category Error Category Fault tolerance Category Faulttolerant computer systems Category Computer ...An error tolerant design is one that does not unduly penalize user errors. It is the human equivalent of faulttolerant design that allows equipment to continue functioning in the presence of hardware faults, such as a limp in mode for an automobile electronics unit that would be employed if something like the oxygen sensor failed. Use of behavior shaping constraints to prevent errors Use of forcing functions or behavior shaping constraint s is one technique in error tolerant design. An example is the interlock engineering interlock or lockout of reverse in the transmission mechanics transmission of a moving car. This prevents errors, and prevention of errors is the most effective technique in error tolerant design. The practice is known as poka yoke in Japan where it was introduced by Shigeo Shingo as part of the Toyota Production System . Mitigation of the effects of errors after they are made The next most effective technique in error tolerant design is the mitigation or limitation of the effects of errors after they have been made. An example is a checking or confirmation function such as an Confirmation dialog box Are you sure dialog box in computer software for an action that could have severe consequences if made in error, such as deleting a file although the consequence of inadvertent file deletion has been reduced from the DOS days by the concept of the Recycle bin computing recycle bin in Microsoft Windows or the trash can in Mac OS that has been introduced in most GUI User interface interfaces . Adding too great a mitigating factor in some circumstances can become a hindrance, where the confirmation becomes mechanical this may become detrimental for example, if a prompt is asked for every file in a batch delete, one may be tempted to simply agree to each prompt, even if a file is deleted accidentally. Another example is Google s use of spell checking on searches ... more details
The Dent Fault is a major fault geology fault on the boundary between the counties of Cumbria and North Yorkshire in northern England . The fault is named after the village of Dent, Cumbria Dent in Dentdale on the western margin of the Yorkshire Dales . The fault, or rather the Dent FaultSystem a collection of closely associated faults and folds, defines the western edge of the Askrigg Block , a geological structure which underlies the Yorkshire Dales. The fault is associated with the Taythes Anticline to its west and the Fell End Syncline to its east. Other than vertical movement on the fault, there has also been an element of strike slip movement. To the north, the fault links with the Pennine FaultSystem in the vicinity of Brough and with the Craven Fault near Kirkby Lonsdale to the south. ref Stone et al. 2010 British Regional Geology Northern England 5th edition Keyworth, Notts, British Geological Survey ref References reflist Category Geology of England Category Geology of Cumbria Category Geology of North Yorkshire ... more details
The Ballenas Fault is a transform fault located on the seabed of the Gulf of California , extending through the Canal de Ballenas which separates the Isla ngel de la Guarda from the Baja California Peninsula . The fault is an integral part of the East Pacific Rise , linking the Delfin Basin in the north with a smaller spreading center to the south. The fault is considered the northernmost member of a grouping of four transform faults called the Guaymas Fault Guaymas Transform FaultSystem . The Ballenas Fault produced a magnitude 6.9 earthquake on August 3, 2009. References http adsabs.harvard.edu abs 2009AGUFM.G23B0689M Earthquake cycle on the Ballenas Fault, Central Gulf of California, Malservisi et al, 2009 Category Geology of Mexico Central America plates tectonics stub ... more details
Multiple issues unreferenced December 2009 notability December 2011 In document ISO CD 10303 226 , a fault is defined as an abnormal condition or defect at the component, equipment, or sub system level which may lead to a failure . According to the Federal Standard 1037C of the United States, the term fault has the following meanings An accidental condition that causes a functional unit to fail to perform its required function. A defect that causes a reproducible or catastrophic malfunction. A malfunction is considered reproducible if it occurs consistently under the same circumstances. In Electric power power systems, an unintentional short circuit , or partial short circuit, between energized conductor material conductor s or between an energized conductor and ground electricity ground . A distinction can be made between Symmetric fault symmetric and asymmetric fault s. Failures in hardware can be caused by random fault s or systematic fault s, but failures in software are always systematic. See also Computer bug Defect disambiguation Anomaly in software DEFAULTSORT Fault Technology Category Fault tolerance Category Software anomalies Category Computer errors Technology stub it Avaria pt Falha tecnologia ... more details
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