Low Clearance Ahead: Can Predictable IT Crashes Be Avoided?
نویسنده
چکیده
Just how many warnings are needed to prevent an accident? Apparently for many driving trucks and RVs under the Norfolk Southern–Gregson Street Overpass in Durham, North Carolina, multiple low-clearance signs, an LED warning sign, and ashing lights aren’t enough. Since 2008, the 11-foot, 8-inch bridge— nicknamed the “Can Opener” for the numerous vehicle tops it has sheared o —has been the site of more than 110 height-related accidents.1 Drivers who have slammed into the bridge routinely claim they never saw the warnings.2 Over the past several years, a steady stream of IT projects, especially in government, have similarly ignored multiple warnings not to launch and have ended up crashing into their own analogous can openers. In some cases, like the Canadian government’s new C$309.5 million Phoenix payroll system that went live in February 2016, the costs of repairing the resulting wreckage are exceeding the costs of development.3 Phoenix has for well over a year managed to botch the payments of more than 150,000 Canadian government workers, or about half.4 As of the end of July 2017, there was still a backlog of some 228,000 improper payments needing to be sorted out.5 Eliminating the backlog will take some time, since nearly as many new cases of improper payments are occurring as are being cleared up. Canadian Prime Minister Justin Trudeau belatedly admitted that his government “didn’t pay enough attention to the challenges and the warning signs on the transition we were overseeing.”6 After originally promising that the payroll system would be xed by October 2016, the government is now expecting—or perhaps hoping—that Phoenix will rise from the ashes sometime in 2019.7,8 The Phoenix asco is by no means unique. For instance, who can forget the disastrous rollout of HealthCare.gov, Low Clearance Ahead: Can Predictable IT Crashes Be Avoided?
منابع مشابه
The Design of the POSTGRES Storage System
This paper presents the design of the storage system for the POSTGRES data base system under construction at Berkeley. It is novel in several ways. First, the storage manager supports transaction management but does so without using a conventional write ahead log (WAL). In fact, there is no code to run at recovery time, and consequently recovery from crashes is essentially instantaneous. Second...
متن کاملDaniel b . Fambro Student Paper award : modeling Dynamic Dilemma Zones using observed Yellow - onset Trajectories
iNTRODUCTiON Intersection crashes constitute a significant portion of total crashes nationwide. The report " National Agenda for Intersection Safety " quotes that in the year 2000, more than 2.8 million intersection-related crashes occurred, which amounts to 44 percent of all reported crashes. 1 Among all possible factors contributing to the intersection-signal-related crashes, yellow phase dil...
متن کاملAre Nancial Crashes Predictable?
{ We critically review recent claims that nancial crashes can be predicted using the idea of log-periodic oscillations or by other methods inspired by the physics of critical phenomena. In particular, the October 1997 \correction" does not appear to be the accumulation point of a geometric series of local minima. It is rather tempting to see nancial crashes as the analogue of critical points in...
متن کاملAre financial crashes predictable?
– We critically review recent claims that financial crashes can be predicted using the idea of log-periodic oscillations or by other methods inspired by the physics of critical phenomena. In particular, the October 1997 “correction” does not appear to be the accumulation point of a geometric series of local minima. It is rather tempting to see financial crashes as the analogue of critical point...
متن کاملA Comparison of the Low-Frequency Properties of DC-free Codes Generated by Look-Ahead and Guided Scrambling Techniques
Suppression of the low-frequency (lf) components of the modulated data stream is a system requirement in optical recording which facilitates the usage of servo systems for reading the optical disc. Insufficient suppression of the lf components of the coded spectrum will lead to improper functioning of the servo systems, and/or acoustical noise generated by the servo systems, and/or additional p...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- IEEE Computer
دوره 50 شماره
صفحات -
تاریخ انتشار 2017